Sony CDP-690 Single Disc CD Player w/ Variable, Optical, Remote

Sony CDP-690 Single Disc CD Player – Tested and Working Well, Good Cosmetics, Sony Remote

Experience the refined engineering of the Sony CDP-690—an exceptionally capable single-disc CD player from 1990 that delivers clean, detailed audio with sophisticated design. Built with Sony’s premium components and precise mechanics, this player has been fully tested and is ready to provide years of reliable music playback. Good cosmetic condition throughout.

Sony’s Engineering Excellence:
The CDP-690 employs dual AD1860N 16-bit D/A converters—premium converters that were the gold standard in their era. These converters work in tandem to deliver exceptional accuracy with <0.005% THD and a vanishingly low noise floor (>105dB S/N ratio). The result is a clean, transparent sound character that many audiophiles prefer to more aggressive, modern DAC implementations.

The KSS-240A CD transport mechanism ensures reliable, precise disc reading with excellent tracking stability. Laser pickup quality was critical in early CD player design, and Sony’s selection of this proven mechanism reflects their commitment to sonic integrity.

Sophisticated Analog Output Design:
A key strength of the CDP-690 is its dual analog output topology:

Fixed Level Output (RCA) – Standard 2V line output for direct connection to any preamp or receiver

Variable Level Output (RCA) – Allows independent volume control directly from the player, eliminating the need for a preamp if desired. Perfect for systems where you want to bypass additional electronic stages

Optical Digital Output (SPDIF) – Connects to external DACs for those seeking alternate conversion pathways. This flexibility was ahead of its time for a single-disc player

This tri-output design makes the CDP-690 exceptionally flexible—you can use it as a simple transport, a standalone player with volume control, or integrated into any system configuration imaginable.

Specifications:
Type: Single disc CD player

Disc Format: CD audio (standard Red Book)

Digital Converter: Dual AD1860N 16-bit D/A converters

CD Transport: KSS-240A mechanism with precise tracking

Frequency Response: 2Hz – 20kHz (±0.5dB)

Dynamic Range: 95dB

Signal-to-Noise Ratio: >105dB

Total Harmonic Distortion: 0.005%

Channel Separation: >95dB

Analog Outputs:

Fixed Level: 2V (RCA, standard)

Variable Level: 0–2V (RCA, user-adjustable)

Digital Output: Optical (SPDIF, 660nm laser, -18dBm)

Headphone Output: 6.3mm jack with independent level control (max 15mW into 32Ω)

Dimensions: 430 × 100 × 280mm (16.9″ × 3.9″ × 11″)

Weight: 3.7kg (8.2 lbs)

Power: AC 220/240V (region dependent)

Year: 1990

Made in: Japan

Versatile Connectivity:
The CDP-690’s combination of fixed output, variable output, and optical digital makes it unusually flexible for a 1990s player:

✅ Use as a simple transport – Feed the optical output to your DAC
✅ Use with volume control – Connect the variable output directly to powered speakers or amplifier
✅ Use as a full player – Connect fixed output to your preamp for traditional system integration
✅ Headphone listening – Independent headphone output with level adjustment

Condition:
This unit is in good cosmetic condition with clean exterior and smooth mechanical operation. The laser mechanism has been tested and performs reliably. All outputs (fixed, variable, optical, headphone) have been verified and are working perfectly.

Includes Sony Remote

Summary:
The Sony CDP-690 is a versatile, well-engineered CD player that delivers clean, detailed sound while offering the unusual flexibility of variable output and optical digital connectivity. Whether you’re seeking a dedicated transport, a standalone player, or a component with genuine system integration options, the CDP-690 performs admirably. Its premium converters and robust construction ensure reliable performance for years to come.

Purchase with Confidence
Includes Radique Audio “Bumper to Bumper” Warranty

Perpetual Trade-Back Policy—upgrade or swap with peace of mind

Japanese precision and versatile engineering—fully tested, good condition, Sony Remote, and ready to play; asking $245.