Built when CDs were still exciting. The CDX-400 comes from Yamaha’s late-80s period when they were figuring out what digital audio could really do — and they overbuilt everything.
Technical Specifications:
Digital & Transport:
• Disc format: CD (44.1kHz/16-bit)
• Transport mechanism: Yamaha MLP-7 laser pickup unit
• Digital-to-Analog Converter: Burr-Brown PCM56P
• Digital filter: 8× oversampling
Audio Performance:
• Frequency response: 5Hz to 20kHz (±0.5dB)
• Dynamic range: 96dB
• Signal to noise ratio: 100dB
• Channel separation: 85dB
• Total harmonic distortion: 0.004%
• Line output level: 2V RMS
Build & Dimensions:
• Weight: 4.6 kg
• Dimensions: 435 × 107 × 335mm (W × H × D)
• Available in black and silver finishes
• Production year: 1987
The vintage difference:
This isn’t some modern chip-based player where everything’s integrated into one cheap IC. The CDX-400 uses the Burr-Brown PCM56P DAC — a proper multi-bit converter from back when that mattered. The MLP-7 transport is Yamaha’s own mechanism, not an off-the-shelf unit. Combined with 8× oversampling, you’re getting proper digital filtering and analog output stages designed by people who understood both digital and analog domains.
Who it’s for:
• Building a solid CD-based system on a budget
• Someone who wants Yamaha build quality without paying the audiophile tax
• People who prefer physical discs over streaming
• Collectors who appreciate late-80s Japanese digital audio
Reality check:
It’s vintage gear from 1987. The laser pickup in the MLP-7 transport may eventually need alignment or replacement — that’s normal for gear pushing 40 years. But the analog stages, power supply, and DAC circuitry were built properly. This is serviceable equipment with actual repair documentation available.
The bottom line:
You’re getting a piece of Japanese digital audio history that still sounds good. The PCM56P DAC delivers smooth, musical sound without the edginess that plagued some early CD players. It won’t beat a $5000 modern DAC, but it’ll make your CDs sound like they were meant to — honest, engaging, and built to last.
Comes with 6 months warranty.
