Marantz CD-15
¥ 390,000 (around 1994)
Commentary
This CD player was developed based on the LHH series of Philips CD player with Marantz's unique technology.
The D/A converter is equipped with DAC7, a bit stream type D/A converter that boasts excellent linearity.
The 3-stage differential part of the DAC7 completely cancels out the in-phase noise, thereby extracting the afterglow and overtone of the sound.
The TDA1547, which is part of the 1-bit converter section, has been remeasured by Marantz in important sound quality items, and only products that meet strict standards have been adopted. The selected TDA1547 has a star mark as proof of "Selected by Marantz".
Marantz's original HDAM is used for the analog output circuit to obtain a higher slew rate than the conventional OP amp while maintaining the freedom of discrete design.
In addition, excellent S/N has been obtained by thermal stability and high shielding performance.
The mechanism part uses Philips' unique 1-beam swing arm mechanical CDM-4MD.
In addition, introduced newly developed ICs for servo systems and decoders to improve the ability to recover damaged disks.
The power supply section employs a 2-transformer system. The main power supply uses a toroidal transformer with a large capacity and low leakage flux. A dedicated transformer is used for the fluorescent display tube power supply, which is a noise source. This eliminates electrical influence on the music signal.
The power supply, display, analog block, and D/A converter are each shielded with copper plated steel plates to eliminate mutual interference between circuits. Moreover, the structure based on copper plated die-cast chassis provides high damping.
Equipped with a 2-step display OFF switch.
Wireless remote control is included.
Model Rating
Type | Compact disc player | ||
Channel | 2 Channel | ||
D/A conversion method | 1-bit linear / channel | ||
Frequency characteristic | Line out (RCA) : 20 Hz to 20 kHz ± 0.2 dB Balanced (XLR) : 20 Hz to 20 kHz ± 0.2 dB |
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Dynamic range | 96dB | ||
Signal-to-noise ratio | 108dB | ||
Channel separation | 100 dB or More (20 Hz to 20 kHz) | ||
Total harmonic distortion factor | 0.00135%(1kHz) | ||
Wow and flutter | Crystal accuracy | ||
Output Level / Impedance | Line out (RCA) : 2Vrms/150 Ω Balanced (XLR) : 3Vrms/150 ohm |
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Adaptive load impedance |
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Digital output | Coaxial : 0.5Vp-p/75 Ω | ||
Power consumption | 20W | ||
External dimensions | Width 454x Height 138x Depth 360 mm | ||
Weight | 16.8kg | ||
Attachment | Wireless Remote Control |