Accuphase DP-65V
Compact Disc Player with fully separate transport and digital processor sections, 20-bit MMB D/A conversion, and external digital I/O
Overview
The Accuphase DP-65V is a high-end Compact Disc Player combining a fully digital-controlled transport section and a completely separate digital processor in one chassis. It features a KSS-272A ultra-compact laser pickup with integrated RF amplifier and a magnetic sled mechanism, shared with the DP-90. The unit uses fully balanced analog output circuitry isolated from the ground line and includes digital volume control using the extra bits of its 20-bit D/A converters, allowing it to function as a digital preamp. It has two option board slots compatible with BNC, HPC, and AES/EBU digital I/O boards via the Accuphase Digital Bus (ADB) interface.
Specifications
| D/A Converter Type | MMB type |
| D/A Converter Architecture | Four D/A converters connected in parallel |
| D/A Converter Bit Depth | 20-bit |
| Digital Filter | 20-Bit, 8-Times Oversampling |
| Digital Filter Manufacturer | NPC |
| Deemphasis Stage Design | IIR (Infinite Impulse Response) |
| Internal Audio Data Processing | 24-bit format |
| Digital Level Control | Down to -40 dB in 1-dB steps |
| Digital Inputs | Two sets: Optical (Toslink) and coaxial |
| Digital Outputs | Two sets |
| Analog Outputs | Unbalanced RCA out, balanced XLR out |
| Option Board Slots | Two dedicated slots |
| Optional Digital I/O Boards | BNC, HPC, AES/EBU |
| Measurement Standard | EIA standard CP-2402 |
| Test Disc | CP-2403 |
Design
The DP-65V uses a fully balanced analog output stage isolated from the ground line and actuator drive circuits that do not conduct current to ground. The CD transport employs fully digital mechanism control and a tray lock that secures the disc tray during playback. The front panel has seven buttons for power and transport controls, while a supplied remote handles advanced functions including direct track access, repeat, program play, time display, volume, and source switching. The drive board uses Toshiba TA7256P dual op-amps for tracking, focus, tray, and sled drive, and the spindle drive uses an NJM4556LD. The power supply includes three voltage regulators: two at 8V and one at 5V. The unit is described as "quite large, rather heavy" with a "strikingly beautiful, champagne-finished" front panel and a "rock solid" disc tray.
Context
The DP-65V shares option board compatibility with the DC-300 and DG-28. It has a slightly different transport arrangement compared to non-V models. Users report significant improvements when upgrading to later models such as the DP-75V and DP-500. Accuphase expanded its product lineup to include digital sources like this model, building on engineering expertise from its founding by former Kenwood engineer Jiro Kasuga in late 1972.
Market
A common failure is right channel output dropout, often linked to leaked SMD electrolytic capacitors on the motor control PCB for the brushless disc motor. The KSS-272A laser unit is prone to diode (SLD-104) failure and degraded plastic lens suspension, with no new units available and used ones commanding high prices. Refurbishment of the laser unit is documented. Capacitor replacement on the motor control PCB is recommended for reliability.
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