Marantz CD5400 27,000yen(October, 2003 release)

The compact disk player which supplied the technology cultivated by the Super Audio CD development as much as possible.

Cirrus-Logic company which is a digital analog converter corresponding to 192kHz/24bit adopted as the digital analog converter by DV8400 Convergence-Sublayer4392 is carried.

It is possible to carry the pitch control functionality in which the speed of compact-disk play is changeable, and to change play speed ±12% at a step 1%.

The quick replay functionality is carried, and only by pushing the "Quick Replay" button of remote control, it returns 10 seconds ago and reproduces once again.

The dot-matrix display device corresponding to CD-TEXT is carried, and a window of CD-TEXT is possible.
Moreover, the De Dis play-off functionality is carried.

Random, a special NetWare program, a deletion program function, the all songs / 1 music / A-B repeat function, the AMS functionality that reproduces the head fraction of each music automatically, the edit functionality, and the peek search function are carried.

CD-Recordable / RW play is supported.

The headphone jack with level adjustment is carried.

The wireless remote control which can turn on and off a power source is attached. 

Form	Compact disk player
Channel	Two channels
Frequency characteristic	2Hz - 20kHz
Dynamic range	100dB or more
S/N ratio	110dB
Channel separation	100dB(1kHz)
THD	0.0025%(1kHz)
Wow and flutter	Quartz-crystal precision
Voice output	Unbalance: 2.0Vrms Headphone output: 18mW/32 ohm (variable maxima)
Digital output	Pin-jack 0.5 Vp-p: 75ohm Optical power: -19dBm
Laser	AIGaAs semiconductor
Wavelength	780nm
Sampling frequency	44.1kHz
Power source	AC100V, 50Hz/60Hz
Power consumption	13W (Electrical Appliance and Material Safety Law) 0.8W (at the time of standby)
Dimensions	Width 440x height 89x depth of 317mm
Weight	3.7kg
Adjunct	Remote control Analog connecting cord Remote connecting cord

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Marantz CD880J 90,000yen(around the 1988 time)

The compact disk player developed by the basis of the theme of playing a music more faithfully.

The 4 time oversampling digital filter and 2DAC scheme of a 16-bit are adopted.
Furthermore, paying attention to improving the basic performance of the LSI itself, TDA1541A and system-application-architecture7220 P/B are named "A version", and are carried.

compact-disk drive mechanism who was carried in LHH1000 and realized Ryo Oshige and quantity rigidity by a die-casting frame in the mechanism,CDM-1MK2 developed based on CDM-1 making full use of the know-how of the ultralight pickup accumulated through the old mechanism development and silence-izing is adopted.
The swing arm scheme of one beam is adopted as a pickup, a weight saving is carried out as much as possible to the whole mechanism's weight hardened by die-casting, and play ability is conjointly raised with the precise servo system.

The original ARC (Alminum Raft Ceiling) structure is adopted.
With the aluminum top cover of 2 piece structures which omitted the shape of Raft (raft), while increasing an intensity, the oscillation mode was diffused and the vibration is prevented.
Moreover, aluminum die-casting is adopted as a chassis and the vibration and the oscillation are further reduced combining a large-sized insulator and sub- wood panel.

In order to prevent the cross interferencee of a digital circuit and an analog circuit, it becomes independent about a digital circuit, an audio circuitry, a servo circuitry, a display-device circuitry, etc., respectively, and is considered as the substrate layout which banished the wraparound of the noise.

The large-sized power transformer excellent in the Europe regulation was carried in the power-source part, and the mass electrolytic capacitor for audios of 6,800 micro Fx2 is adopted.
Moreover, the digital circuit and the analog circuit were made into the coil according to full independence, and the wraparound of the noise generated from a digital circuit is prevented.

The digital output of optical 2 systems is carried as the coaxial (75-ohm coaxial).
Moreover, analog output carries the variable output which is interlocked with a master volume in addition to a fixed output.

compact-disk filing bank FTS (Favorite Track Selection) is carried.
If memory is once disappeared and carried out with the filing system of compact disk which chooses and memorizes a favorite track even if it turns OFF a power source, it is filed eternally. 

Form	Compact disk player
Digital analog converter	The 4 time oversampling digital filter of a 16-bit L/R independent 2DAC
Filter	The 3rd Bessel filter
Frequency characteristic	2Hz-20000Hz±0.1dB
Dynamic range	96dB or more
S/N ratio	103dB
Channel separation	100dB or more
THD	0.0015%
Wow and flutter	Quartz-crystal precision
Error correcting system	CIRC
Analog output	A maximum of 2 Vrms
Digital output	0.5 Vp-p/75ohms
Optical output	Optical fiber
Power consumption	30W
Dimensions	Width 462x height 104x depth of 363mm
Weight	11.5kg
Adjunct	Remote control

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Marantz CD650 79,800yen(1986 release)

It is a compact disk player which carries the 4 time oversampling digital filter of a 16-bit, and compact-disk filing bank FTS.

The 4 time oversampling digital filter and original Z filter consisting mainly of right-and-left independent 2D / A converter are carried.
In compact-disk650, 4 time oversampling LSI of the newly developed 16-bit is adopted as this Z filter. It was made to operate at 176.4kHz by this, and the outstanding phase response and the high transient response property which reaches 30kHz of passbands have been acquired.
Moreover, the 3rd Bessel filter excellent in the phase response is used for a low pass filter.
2DCAC scheme which carries an exclusive digital analog converter in right and left is adopted as a digital analog converter, and the occurrence of phase gap is suppressed. Moreover, two sets of digital analog converters were dedicated to LSI of one chip, and also the stability is improved because LSI of a digital filter and a PLL demodulator circuit also throws in a newly developed type and accumulates a decoder circuit on three chips.

The influence of an oscillation or a vibration is suppressed by having adopted as a mechanism CDM-2 which improved the original swing arm mechanism, and also adopting a floating structure.
Inheriting the basic design of a swing arm and 1 beam laser pickup, it is what renewed a material and optical system, and adopted the high-density glass wool + tick, and CDM-2 has realized the fall of a weight saving and resonance frequency.
Furthermore, the pickup part supplied the original replica technology (aspheric surface coat coating) and MC type focusing mechanism, and has realized miniaturization and highly precise-ization.

In addition to the usual analog output terminal, the meister output which took into consideration the phase response in an audio inband and the high region property of analog master compact disk based on musicality is carried.
Moreover, the digital output termination is carried.

Newly developed compact-disk filing bank FTS is carried, by FTS, memory of the special NetWare program is carried out, and it can be saved.
In FTS, programmed compact disk is distinguished automatically and the special NetWare program by which memory was carried out for every compact disk is played. distinction of compact disk is performed by the original ID (identity) code, and the ID code combines the TOC data currently recorded on all the compact disks -- a special NetWare program, simultaneously automatic-input s that measure.
The memory of FTS is possible for a maximum of 155 sheets noting that it programs five music to one compact disk. electrically erasable and programmable ROM (2 K bytes) is used for a memory device, memory is possible also for which of a track / time / index, and a maximum of 20 special NetWare programs per sheet can program it.

The multi-display which indicates an operation and track of each functionalities, such as FTS, an index, and a transit and residual quantity time by intensive is carried.

The random access special NetWare program of a maximum of 20 music, a skip play, a scanning functionality, 5 mode repeat, the auto pause, the copy pause that inserts the blank part for 4 seconds between music, and 3 speed search are carried.

The headphone jack which equipped the volume is carried.

There was sub- wood as an option.

Random access is begun and the remote control which can operate almost all functionalities from a hand is attached. 

Form	Compact disk player
<Audio property>
Digital analog converter	L/R independent 2DAC The 4 time oversampling digital filter of a 16-bit
Filter	The 3rd Bessel filter
Channel	Two channels
Frequency characteristic	2Hz - 20kHz
Dynamic range	96dB or more
S/N ratio	101dB or more
Channel separation	100dB
THD	0.0015%(1kHz)
Wow and flutter	Quartz-crystal precision
Error correcting system	CIRC
Analog output	2Vrms
Digital output	0.5 Vp-p/75ohm
<Optical reading scheme>
Laser	AIGaAs semiconductor
Wavelength	800nm
<Signaling scheme>
Sampling frequency	44.1kHz
Quatization	A 16-bit linear / channel
<Others>
Power source	AC100V, 50Hz/60Hz
Power consumption	30W
The maximum Dimensions	Width 420x height 89x depth of 300mm
Weight	4kg
Adjunct	Wireless remote control
Option	Sub- wood WCD650 (4,000yen)

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Marantz CD-99SE 200,000yen(1990 release)

The compact disk player of the special edition developed based on compact-disk-95
The modification is added in various fractions, such as adoption of a toroidal transformer.

CDM-1 developed into the Philips Marantz group is adopted as compact-disk drive mechanism.
3 beam linear-tracking is mounting a pickup of 1 beam swing arm scheme borne by completely different dispatch on the die-casting base, and controlling a swing arm with a servo system, and the smooth and positive bit trances is realized.

The D-A-conversion circuitry consists of original LSI "TDA1541AS-1" by original development of the Philips Marantz group.
The microchip selected carefully out of the newest device and A version of Philips's that time is used, and the precision of 1least significant bit is usually guaranteed over total-temperature width 0.5 least significant bits on level at the time of a minute signal.
Moreover, the push pull D-A-conversion scheme by two digital analog converters per channel is adopted, and it has succeeded in the denial of the detrimental constituent leading to a tone-quality failure.

The transformer only for function-logic-diagram display device is made to become independent in a power-source part, the full separation is carried out by supplying other parts with a toroidal transformer, and also a toroidal transformer is separating a coil for every part, and has prevented mixing of the noise to an audio circuitry.
Moreover, the mass electrolytic capacitor which made full use of new materials is fed into the capacitor.

The main unit has a structure with the mechanism strong against an oscillation itself, and also has strengthened the oscillating measure thoroughly with sub- die-casting, the 3mm thickness top cover, and the 3mm platform board, is taking sandwich construction and has realized no vibrating and absent-resonance-ization.
Furthermore, by adopting a copper plating chassis, the RF has prevented jumping into other elements.

The gilding treatment is altogether carried out to the output-terminal, analog output carries one light and the digital output carries one coaxial and one light.

If a special NetWare program is made to memorize once, even if it will turn off the power, the "FTS" functionality which can be filed, and functionalities, such as a random special NetWare program of 20 music, are carried semipermanently. 

Form	Compact disc player
Channel	Two channels
Frequency characteristic	2Hz - 20000Hz, ±0.1dB
Dynamic range	96dB or more
S/N ratio	104dB
Channel separation	100dB or more (1kHz)
THD	0.0015%(1kHz)
Wow and flutter	Quartz-crystal precision
Error correcting system	Cross interleave reed-solomon code (cross interleaved Reed-Solomon code)
Voice output	2V, RMS, a stereo
Digital output	Pin-jack 0.5 Vp-p: 75ohm Optical power: (Square-shaped light connector) -19dBm, +4.5dBm-2.0dBm
Laser	AIGaAs semiconductor
Wavelength	780nm
Sampling frequency	44.1kHz
Quatization	A 16-bit linear / channel
Permissible operating temperature	+ 5 degrees C - +35 degrees C
Permission operation humidity	5% - 90% (there needs to be no dew condensation)
Power source	AC100V, 50Hz/60Hz
Power consumption	21W
Dimensions	Width 454x height 106x depth of 357mm
Weight	About 13.8kg
Adjunct	Remote control

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Marantz CD-95 180,000yen(1988 release) 164,000yen(around the 1989 time)

The compact disk player which concentrated compact-disk developer's technology, and the essence of the know-how, and realized high completeness.

In a D-A-conversion circuitry, the Philips Marantz develops uniquely, and is constituted from original LSI (TDA-1541A S-1) to which the enhancement was come in piles.
This TDA-1541A S-1 is the selected type further selected carefully out of Philips's newest device A version, and the crown multiple asynchronously communicating hosts is stamped with the model number.
This has usually guaranteed 1least significant bit on level 0.5 least significant bits covering total-temperature width at the time of a very small signal.

The stream composition of a D-A conversion carries two digital analog converters per channel, and, moreover, has adopted the push pull D-A-conversion scheme.
Two converters serve as combination of a right phase and negative phase, and a wave is compounded through here. An inphase component is canceled, an eventh included low distortion is also offset by it and the concurrent, and they reduce the hum and the super-low-pass noise sharply.

In order to employ the performance of single compact disk in the maximum efficiently, the sensor detected 12cmCD and 8cmCD and the span of a servo operation was switched by the circuit constant, and it has set up so that the operating point may turn into the middle point.

The drive mechanism has adopted CDM-1 type which the Philips Marantz developed.
It is a swing arm pickup of 1 beam scheme borne by the way of thinking different from the usual linear-tracking. The lens is an RODENSTOCK glass, and aberration is excellent in the temperature characteristic few, and it is raising pickup capacity.
Moreover, the samarium cobalt magnet was adopted as the linear motor used as the source of power, and the servo system which controls a swing arm, the conjointly smooth and positive bit, and the race are realized.
Moreover, the die-casting base is adopted for a rigid improvement, and the influence of an extraneous vibration etc. is suppressed.

A stream composition called the large-sized transformer which is equal to power amplifier, and the electrolytic capacitor of 68,000 micro Fx2 is adopted as a power-source part. New materials were adopted especially as the electrolytic capacitor, and the tone-quality serious consideration type is selected carefully and adopted as it.
Moreover, the power transformer divided the secondary winding into the object for digital circuits, the object for audio circuitries, and display-device circuitries, and has achieved independent-ization.
The noise which a regulator circuitry also adopts a discrete stream composition and is related to a power-source part is eliminated.

The product made from die-casting is adopted as a chassis, and also the oscillation is suppressed by considering it as the firm sandwich construction which consists of a sole plate of the side panel made from die-casting, and 3mm thickness.
Moreover, the ARC (Aluminium Faft Ceiling) structure original with a Marantz is adopted as a top cover, and strength improvement and an oscillation mode diffusion are aimed at by considering it as 3 piece structures where the Raft (raft) cut was performed.
Furthermore, it is isolated from a rotation system and the preamplifier for laser signals usually mounted in a mechanism is suppressing the influence of an oscillation.

In order to prevent a harmful cross interferencee with vibration proof, paying attention to the circuit layout, a digital circuit, the audio circuitry, the servo circuitry, the microcomputer, and the display-device circuitry are considered as the substrate stream composition which became independent, respectively.

Two digital outputs of a coaxial are equipped as it is optical.

If filing bank"FTS" other than the usual random access special NetWare program (20 music) is carried and memory of the special NetWare program is carried out once, even if it turns off the power, it can file semipermanently.

Remote control is equipped standardly. 

Form	Compact disk player
<Audio property>
The number of channels	Two channels
Frequency characteristic	2Hz-20000Hz±0.1dB
Dynamic range	96dB or more
SN ratio	104dB
Channel separation	100dB or more (1000Hz)
THD	0.0015%(1000Hz)
Wow and flutter	Quartz-crystal precision
Error correcting system	Cross Interleaved Reed-solomon code (cross interleaved Reed-Solomon code)
Voice output	2 V=RMS Stereo
Digital output	Pin jack: 0.5 Vp-p/75ohms Square-shaped light connector: -19dBm+4.5 -2.0 dBm
<Optical reading scheme>
Laser	AIGaAs semiconductor
Wavelength	780nm
<Signal synopsis>
Sampling frequency	44.1kHz
Quatization	A 16-bit linear / channel
<Synthesis>
Permissible operating temperature	+ 5 degrees C - +35 degrees C
Permission operation humidity	5 to 90% (there needs to be no dew condensation)
Power source	AC100V, 50Hz/60Hz
Power consumption	About 30W
Dimensions	Width 454x height 86x depth of 330mm Maxima: Width 454x height 106x depth of 357mm
Weight	13.8kg
Adjunct	Remote control

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Marantz CD-94Limited 160,000yen(around the 1988 time)

The limited model which aimed at the top quality as a gold version of compact-disk-94.

The D-A-conversion part carries 16-bit digital-analog-converter LSI-TDA1541 which operates by oversampling compact-disk developer's 4 original times, and has 16-bit-ized all digital decoders.
Furthermore, since TDA1541 is L-R independent dual DAC which equips the digital analog converter only for Lch-Rch, it banished phase gap of right and left to the super-high region, and has attained the wide band property and dynamic range which amount to 30kHz.

CDM-1 mechanism employed as compact-disk drive mechanism is tuned up and carried.
The likelihood of the tone-quality failure by oscillation is eliminated by the rigid improvement by additional of a reinforcement rib, and separate independence setting of the preamplifier for laser signals.

The digital output which can carry out a digital transmission to the separate type digital analog converter of CDA-94 etc. is carried.
It was standardized by the digital audio interface format and the optical output and the 75-ohm coaxial output support all the digital analog converters with an isomorphous-type input terminal.

The circuit layout has banished the wraparound of a noise with careful attention to the cross interferencee of digital one and an analog.
Moreover, as a measure against an oscillation / vibration, heavy weight class die-casting was adopted as the chassis, the griddle of 3mm thickness was adopted as the sole plate, and the creativity of filling up the room inside a large-sized insulator with Portland cement further is put.

compact-disk filing bank FTS which can carry out program memory of the 150 compact disks eternally is begun, and functionalities, such as a shuffle play with remote control, are carried. 

Form	Compact disk player
Digital analog converter	The 4 time oversampling digital filter of a 16-bit L/R independent 2DAC
Filter	The 3rd Bessel filter
Frequency characteristic	2Hz-20kHz±0.1dB
Dynamic range	96dB or more
SN ratio	104dB or more
Channel separation	100dB or more
THD	0.0015%
Wow and flutter	Quartz-crystal precision
The maximum Dimensions	Width 462x height 107x depth of 355mm
Weight	12kg
Adjunct	Remote control

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Marantz CD-94 150,000yen(1986 release)

They are a development track record until it results in D-63 (compact disk player of No. 1) - LHH2000, and the compact disk player developed based on the result of research.

TDA1541 which is 16-bit digital-analog-converter LSI which operates by oversampling 4 times is carried, and all digital decoders are 16-bit-ized. TDA1541 carries two digital analog converters only for Lch-Rch in LSI of a chip, and has banished phase gap of right and left.

CDM-1 mechanism employed also as the compact disk player for pros is tuned up and employed as a mechanism part.
By having made the preamplifier for laser signals conventionally mounted in the mechanism separate, a preamplifier circuitry is released from a fine oscillation of a rotation system, and also the circuitry itself is pursued on a large scale and in tone quality.
Moreover, a reinforcement rib is added to the mechanism unit by aluminum die-casting, and rigidity is improved.

It is the layout which banished the wraparound of the noise, constituting a digital circuit, the audio circuitry, the servo circuitry, the microcomputer, and the display-device circuitry from a circuit substrate which became independent, respectively, and suppressing a cross interferencee.

The large-sized transformer and the custom-made electrolytic capacitor of 68,000 micro Fx2 are adopted as a power-source part. Moreover, divide the sub- side coil of a power transformer into the object for digital circuits, the object for audio circuitries, the object for servo circuitries, and display-device circuitries four, it is made to become independent to them, and the measure against a noise is performed from the power-source part. Furthermore, a regulator circuitry is also discrete-ized and the noise of the power-source part itself is also reduced.

The die-casting chassis is adopted as a chassis and a self-weight and rigidity of the body are really improved combining the aluminum drawing-out top cover of molding.

Compact-disk filing bank FTS (Favourite Track Selection) is carried, and the permanent memory of the special NetWare program can be carried out. Moreover, programmed compact disk is distinguished automatically and the special NetWare program by which memory was carried out for every compact disk is played.

Almost all operations are possible at attached wireless remote control.

An AMS functionality, a timer play, etc. which reproduce the repeat mode of /1 music / all songs and the head of music one after another between a shuffle play, a special-NetWare-program play of a maximum of 20 music, and FTS / shuffle / special NetWare program / A-B are carried.

The headphone jack is carried.

The digital output termination of a coaxial is carried as it is optical. 

Form	Compact disk player
Sampling frequency	44.1kHz
Quatization	A 16-bit linear / channel
Digital analog converter	The 4 time oversampling digital filter of a 16-bit L/R independent 2DAC
Filter	The 3rd Bessel filter
Channel	Two channels
Frequency characteristic	2Hz-20kHz±0.1dB
Dynamic range	96dB or more
SN ratio	104dB(1kHz)
Channel separation	100dB or more (1kHz)
THD	0.0015% (1kHz, THD)
Wow and flutter	Quartz-crystal precision
Error correcting system	CIRC
Analog output	2Vrms
Digital output	Coaxial: 0.5 Vp-p/75ohm Optical: Optical-fiber connector
Laser	AlGaAs semiconductor
Wavelength	800nm
Power source	100V, 50Hz/60Hz
Power consumption	30W
The maximum Dimensions	Width 462x height 104x depth of 355mm
Weight	10.3kg
Adjunct	Wireless remote control RMC-94

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Marantz CD-84 159,800yen(1984 release)

　
The compact disk player which developed the original technology, and also supplied many know-hows and technologies and was developed in order to improve a tone quality, a stability, and an operationality.

Z filter which improves and developed the digital filter further is carried.
Z filter consists of a digital filter, a digital analog converter, and a low pass filter. With Z filter, oversampling of the sampling frequency is carried out 4 times, it is set to 176.4kHz and 44.1kHz is processed by the low pass filter with a loose property. The failure of the phase response which originates in a high order filter by this, or a transient response property is eliminated.
It extended the passband to 30kHz and has improved the transient response property at the same time the Bessel filter which is excellent in a phase response is used for the low pass filter of Z filter in addition to the lower degree of the 3rd order and it secures a phase response good to a high region.
Furthermore, right-and-left independent 2D / A converter is adopted as a D-A conversion, and it is suppressing that a phase rotation occurs.

The swing arm pickup is adopted as a pickup part.
The swing arm pickup maintains the dynamic balance by considering it as the structure which was equipped with the laser pickup at the leading end and to which it equipped the rear with the counter wait, and enables the always stabilized pickup trances.

The world's smallest semiconductor laser pickup is adopted as a pickup part.
Through a miniaturization, the component parts of the pickup are made simple and the component partses of optical system are decreasing in number even to the lens of two sheets, and one beam splitter. This becomes possible to maintain an assembly precision at a high level, and the robustness is improved.
Furthermore, the efficient design which uses only the center section of a laser beam effectively by miniaturization of the whole pickup is possible.

The base made from aluminum die-casting is equipped with the original swing arm pickup, an extraneous vibration and a fine oscillation of a rotation system are suppressed, and the stability is improved.

While carrying a large-sized transformer and a mass capacitor in a power-source part, an audio circuitry, a digital circuit, a servo circuitry, a digital display, etc. separate the power source of the circuitry which generates a switching noise, and are stopping the noise by adopting a perfect independent source.

The part which carried out the fountainhead through the hearing is adopted as each stage.
Furthermore, the grounding point which is an important factor of a tone-quality determine has also determined the best focus in the hearing.

The random access special NetWare program of a maximum of 24 music, a deletion special NetWare program, the auto music scan that reproduces only an intro, a head-search functionality, the skip function, the back skip function, the repeat function, and the music standby functionality are carried.

The large-sized display device which can perform a window of a digital display + special-NetWare-program indicator is carried.

The digital interface termination is carried.

It can be operated from the location left by the attached exclusive remote controller.
Moreover, the Marantz bus system which performs remote control easy operation with an exclusive microcomputer is supported, audio timer AT333R and remote control transmitter RMC-10 can be used together, and it can operate by remote control. 

Form	Compact disk player
<Disk>
Outer diameter	12cm
The number of channels	Two channels
Track pitch	1.6 micrometers
Scanning velocity	1.2-1.4m/sec
<Signal format>
Sampling frequency	44.1kHz
The number of quatizations	16-bit linear
Modulation technique	EFM
Channel bit rate	4.3218Mb/sec
Error correcting system	CIRC
Encode scheme	Two's complement
<Optical pickup>
Semiconductor laser wavelength	0.78 micrometer
Numerical aperture (NA)	0.45
Depth of focus	±2 micrometers
The diameter of the beam spot (disk top layer)	About 1mm in diameter
<Electrical properties>
An Output voltage/impedance	2.0V/60 ohm
Play frequency band	4Hz - 20kHz
SN ratio	96dB or more
Dynamic range	92dB or more
Channel separation	94dB or more
THD	0.003% or less (1kHz)
Wow and flutter	Quartz-crystal precision
Demphasis	Automatic switching
<Others>
Power source	AC100V, 50Hz/60Hz
Power consumption	28W
The maximum Dimensions	Width 416x height 90x depth of 300mm
Weight	8.0kg
Adjunct	Infrared remote control RMC-84

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Marantz CD-80 90,000yen(1989 release)

The compact disk player which threw in the newest devices, such as S1 type digital analog converter and a CDM-1MkII mechanism, and was born.

TDA1541 A-S1 of S1 type which selected carefully what was further excellent from the newest A version and on which the crown multiple asynchronously communicating hosts was inscribed is used for a D-A-conversion part. In compact-disk-80, the signal fed from the 4 time oversampling digital filter of the 16-bit is changed into the analog signal with S1 device of a L/R independency. This has eliminated the detrimental constituent peculiar to digital one, such as zero cross distortion.

The CDM-1MkII mechanism which adopted the strong die-casting frame and the super-lifetime brushless hall motor is carried in the mechanism part. Furthermore, the Read performance excellent in making the whole mechanism into a perfect floating by the damper and a spring is realized.
Moreover, it is adopting the swing arm scheme which allotted the wait to the rear unlike the usual linear tracking, and always stabilized signal reading is possible.
Access time is further raised to the servo circuitry by adopting newly developed servo IC.

Strong die-casting is adopted as a main chassis. Moreover, the metal plate of 3mm thickness is used for a nonmagnetic aluminum plate and a bottom at a top plate, and the original AUF (Antivibrating Unified Frame) structure is formed with the side panel made from die-casting.
Moreover, the heavy weight class insulator made from aluminum is adopted.

The large-sized transformer is adopted as a power source, and the cross interferencee between circuitries is intercepted by considering it as the separate structure which supplies a power source independently to each of servo system / analog system / digital system / display device.
Moreover, source impedance is sharply reduced by using a cerafine type especially for a capacitor. Furthermore, strict sorting articles including a special maid are adopted as the part of each circuitry, and high-quality sound-ization, such as doubling the thickness of copper of a signal path, is attained to it in the required part.

DC coupling stream composition is adopted as an output stage, and since the capacitor which intercepts a direct current component is unnecessary, there is no failure of a signal.

The original FTS functionality which can program semipermanently on a 126-sheet (as special NetWare program of five per sheet) disk is carried.

Functionalities, such as a 20 music special NetWare program, five kinds of edit functionalities, a random play, and AMS (Automatic Music Scan), are carried.

The Dima functionality which the luminosity of a display device can adjust is carried.

In addition to a fixture and variable analog output, the digital output of light and a coaxial is carried.

35 key full remote control is carried. Dima and AMS serve as a functionality of only remote control.

Two kinds of colour variations, gold and black, occur.

Form	Compact disk player
Filter	The 3rd Bessel filter
Channel	Two channels
Frequency characteristic	2Hz - 20kHz
Dynamic range	96dB or more
SN ratio	100dB
Channel separation	100dB or more (1kHz)
THD	0.004%(1kHz)
Wow and flutter	Quartz-crystal precision
Analog output	2Vrms
Digital output	Coaxial: 0.5 Vp-p Optical: -19dBm
Laser	AlGaAs semiconductor
Wavelength	780nm
Sampling frequency	44.1kHz
Quatization	A 16-bit linear / channel
Power source	AC100V, 50Hz/60Hz
Power consumption	20W
The maximum Dimensions	Width 454x height 136x depth of 363mm
Weight	15.0kg
Adjunct	Wireless remote control

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Marantz CD-75 59,800yen(around the 1987 time)

compact-disk pre Ya which attained highly efficient-ization more based on the technology of a 4 time oversampling digital filter, right-and-left independent 2D / A converter, etc., etc.

In order to attain highly efficient-ization more, inheriting the basic stream composition of a 4 time oversampling digital filter and "Z filter" constituted by the 3rd Bessel filter as it is,It changes to the conventional LSI and 4 time oversampling LSI of a 16-bit is carried as a digital analog converter.
Moreover, the decoder circuit is summarized by 3 chip LSI because the digital filter before a D-A conversion and LSI for PLL demodulator circuits also throw in a newly developed type.

A small weight saving and no vibrating-ization were investigated in compact-disk drive part, and CDM-2 to which a new enhancement was performed is adopted as it.
The "high-density glass wool plastics" currently used for the medicine equipment and the precision instrument was adopted as compact-disk drive mechanism component parts, such as a subchassis and a swing arm, and the fall of resonance frequency is realized with the weight saving.
Moreover, by Philips's original replica technology, a 10-micron aspheric surface skin film is coated on the surface of an objective lens, optical system is constituted from two lenses, and the spherical aberration which is not avoided is banished in the spherical lens.
Furthermore, a focusing mechanism is improved from the conventional man-month (moving magnet) type to MC (moving coil) type, and quick tracking is made possible.

CDM-2 is carried with the perfect floating structure. The tray lid currently united with the tray was also made to become independent, the whole included compact-disk drive mechanism was made to separate from a chassis, and the tray is float-ized.

The digital output is carried.

The remote control (RMC-75) which carries a ten key is attached.

The multi-display which indicates three kinds of time intelligences on total time, lapsed time, and residual quantity time, track amber, and the index number by intensive is carried.

A sound-recording start is controllable by combining with the cassette deck corresponding to Marantz synchro Lec (subset-dependency565, subset-dependency-74 grade) with the play button of compact-disk-75.

The headphone jack with a volume is carried.

By a direct play functionality, if a play button is operated, a disk tray will close and a performance will be begun automatically.

The random access special NetWare program of a maximum of 20 music, the skip play of a maximum of 99 music, the index play, 3 speed search, the repeat function, etc. are carried. 

Form	Compact disk player
Digital analog converter	L/R independent 2DAC 4 time oversampling digital filter
Filter	The 3rd Bessel filter
The number of channels	Two channels
Frequency characteristic	2Hz-20000Hz±0.3dB
Dynamic range	96dB
S/N ratio	96dB
Channel separation	94dB(1kHz)
THD	0.003%(1kHz)
Wow and flutter	Quartz-crystal precision
Error correcting system	CIRC
Voice output	2Vrms
Laser	AIGaAs semiconductor
Wavelength	800nm
Sampling frequency	44.1kHz
Quatization	A 16-bit linear / channel
Power source	AC100V, 50Hz/60Hz
Power consumption	20W
Dimensions	Width 420x height 86x depth of 304mm
Weight	4kg
Adjunct	Remote control RMC-75

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Marantz CD-73 210,000yen(1983 release)

The compact disk player of No. 2 developed as a high order model of compact-disk-63.

The micro mechanism which drives an original micro laser pickup by a linear motor is carried in the pickup part.

The linear skating mechanism is adopted as a disk applied part, the whole disk tray part is drawn out by the switchpoint, a disk is arrived, and it is fixed by an original disk clamp scheme.
By this disk clamp scheme, the precision manipulation spindle and the original magnet disk clamper have realized the positive hold.

The original full balance type swing scheme mechanism is adopted as a mechanism.

Two sets of 8-bit microcomputers are carried, and servo system, the special-NetWare-program system, and the control system are controlled.

The error collection circuitry of a development is adopted specially and high error-correction capacity is acquired.

Digital filter LSI is carried and the influence on the audio frequency band which is not avoided is suppressed in the usual multi-stage analog low pass filter.

The I²CBus scheme is adopted as the communications between a display device, key search, and a microcomputer etc. Thereby, since two sets of microcomputers can process efficiently the functionality which each became independent of, it is possible to be able to turn toward a servo control required for a high-quality sound play in the greater part of the capacity. 

Form	Compact disk player
Sampling frequency	44.1kHz
The number of quatizations	16-bit linear
Modulation technique	EFM
Channel bit rate	4.3218Mb/sec
Error correcting system	CIRC
Encode scheme	Two's complement
Semiconductor laser wavelength	0.78 micrometer
Numerical aperture (NA)	0.45
Depth of focus	±2 micrometers
The diameter of the beam spot (disk top layer)	About 1mm in diameter
Output	2.0V
Play frequency band	5Hz - 20kHz
S/N ratio	90dB or more
Dynamic range	90dB or more
Channel separation	90dB or more
THD (1kHz)	0.004%
Wow and flutter	Quartz-crystal precision (below a limit of measurement)
De-emphasis	Automatic switching
Power source	AC100V, 50Hz/60Hz
Power consumption	30W
Dimensions	Width 416x height 81x depth of 300mm
Weight	8kg
Adjunct	Disk x1 Low capacity pin code x1

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