Sony TA-1066 Vintage Integrated Amplifier – 20 WPC, Serviced

Sony TA-1066 Integrated Amplifier 20 WPC – Serviced, Good Cosmetic Condition, Classic 1970s Japanese Quality

Experience the warmth and musical character of vintage Sony engineering with this TA-1066 integrated amplifier—manufactured in Japan from 1973-1975 during Sony’s golden era of hi-fi design. Serviced for reliable performance and in good cosmetic condition, this classic amplifier delivers the engaging, natural sound that has made it a favorite among vintage audio enthusiasts.

The TA-1066 features Sony’s elegant silver faceplate design with wood-grain side panels, combining timeless aesthetics with solid engineering. Rated at 20 watts per channel into 8 ohms (0.8% THD), this amplifier employs a direct-coupled (DC) amplifier design with pure complementary output stage and dual power supplies for clean, transparent sound. While modest in power by modern standards, the TA-1066’s high-quality construction and generous damping factor (22) ensure excellent speaker control and dynamic sound—perfect for efficient bookshelf or vintage speakers in small to medium rooms.

The preamplifier section features a low-noise IC phono stage with a thick 1mm metal shielding plate protecting the delicate MM circuitry from interference. This design delivers quiet, detailed vinyl playback with excellent RIAA accuracy. Multiple inputs include phono (MM), tuner, aux, and two tape monitor loops with recording outputs, plus a front-panel auxiliary jack (6.3mm) and microphone inputs for versatile connectivity. Bass and treble tone controls (±10dB at 100Hz and 10kHz) allow room tuning, while the high filter reduces hiss and surface noise.

Service Work Completed:

Cleaning and lubrication of all controls and switches with DeoxIT

Bias adjustment and DC offset calibration per factory specifications

Protection relay testing

Complete functionality testing of all inputs, outputs, and controls

Key Features:

Made in Japan during Sony’s acclaimed 1970s era

20W per channel into 8Ω with classic warm, musical sound

Direct-coupled (DC) amplifier with pure complementary output stage

Shielded MM phono stage for excellent vinyl playback

Multiple inputs: Phono (MM), Tuner, Aux, 2 × Tape Monitor

Front-panel auxiliary jack (6.3mm) and mic inputs (3.5mm)

Bass/treble tone controls (±10dB) with high filter

Dual speaker outputs with front-panel switching

Two recording outputs plus DIN output

Wood-grain side panels with silver faceplate

Serviced for reliable operation

Specifications:

Power Output: 20W/ch (8Ω, 0.8% THD at rated output)

Frequency Response: 20Hz–60kHz

Power Bandwidth: 10Hz–40kHz (8Ω, IHF)

Damping Factor: 22 or more (1kHz, 8Ω)

Input Sensitivity: 2.5mV (MM phono), 250mV (line)

Signal-to-Noise Ratio: 70dB (MM), 90dB (line)

Tone Controls: Bass ±10dB @ 100Hz, Treble ±10dB @ 10kHz

Semiconductors: 22 transistors, 6 diodes

Dimensions: 416 × 120 × 280mm (16.4″ × 4.7″ × 11″)

Weight: 6kg (13.2 lbs)

Year: 1973-1975

Users praise the TA-1066 for its “warm signature 70’s Sony sound,” “unkillable” reliability, and ability to make music “enjoyable” with a variety of speakers. One reviewer notes it’s “built like a tank” with “a nice early DC Amplifier with a warm sound”—perfect for acoustic music, jazz, and vocal recordings where tonal balance and natural reproduction matter most.

Asking $395 for this serviced, made in Japan Sony TA-1066; buy with confidence and benefit from Radique’s “Bumper to Bumper” warranty and Perpetual trade back policy.