Marantz CD-45
¥ 54,800 (around 1986)
Commentary
A CD-player with improved functions based on the CD-25 and introduced the Marantz bus system corresponding to the Marantz mini-component ZEROCON.
Equipped with a 4 x oversampling Z filter.
The Z-Filter, which consists of a digital filter that oversamples the sampling frequency (44.1 khz) to 176.4 khz, four times the sampling frequency, and a third order Bessel filter with excellent phase characteristics, ensures excellent phase characteristics. At the same time, the pass band is expanded to 30 khz to improve transient response characteristics.
The D/A converter is a 2 dac type that uses dedicated D/A converters for both left and right sides, and achieves 0 phase rotation.
The ultra-compact laser pickup is completely driven by a dynamic balance type arm.
The optical system of the pickup has been completely changed by original replica technology and MC-type focusing mechanism.
The entire CD drive mechanism is mounted in a completely floating structure.
The tray lid, which used to be integrated with the tray, is also installed independently, and the CD drive mechanism including the tray is separated from the chassis and floated to reduce vibration and resonance.
We have developed and installed the CD-drive mechanism "CDM-2", which fully adopts "high-density glass wool plastic", a material used for medical devices.
While striving to reduce weight, the resonance frequency has also been reduced.
Equipped with Marantz Synchro REC function.
When combined with a cassette deck, recording start can be controlled with the play switch of the CD-45.
The CD-45 playback can be controlled by remote control in combination with remote control transmitter RMC-15, audio timer AT-333AV and tuner ST-463.
When combined with a model equipped with the Marantz bus system function, the selector automatically switches to the CD position just by pressing the play switch of the CD-45.
It is equipped with functions such as random access program, skip play, index play, repeat all songs / repeat program, 3-step speed search, display switching, etc.
Model Rating
| Type | CD Player |
| D/A converter | L/R Independent 2 dac 4 x oversampling digital filter |
| Filter | Third order Bessel filter |
| Frequency characteristic | 2 Hz to 20000 Hz, ± 0.3 dB |
| Dynamic range | 96dB |
| Signal-to-noise ratio | 96dB |
| Channel separation | 94dB |
| Harmonic distortion factor | 0.003% |
| Wow flutter | Crystal accuracy |
| External dimensions | Width 320x Height 86x Depth 310 mm |
| Weight | 3kg |