Charming Vintage Pioneer 15 WPC Integrated Amplifier SA-5500 II

This vintage Pioneer SA-5500 II from Japan delivers warm, rich sound characteristic of Pioneer’s golden era audio equipment from the late 1970s. Originally manufactured in 1977-78, this integrated amplifier represents Pioneer’s commitment to quality audio reproduction in a compact, elegant package.

Despite its conservative 15 watts per channel rating, owners consistently praise this amplifier for its surprising headroom and ability to drive speakers with authority. The SA-5500 II employs Pioneer’s original monolithic power IC with a differential input SEPP OCL circuit in the power amplifier section, ensuring stable stereo reproduction with minimal distortion.

The amplifier features comprehensive protection circuits including current limiters and thermal shutdown to safeguard both the unit and your speakers. The phono equalizer section utilizes carefully selected PNP and NPN transistors in a direct coupled circuit, maintaining frequency deviation within ±0.5dB for accurate record playback.

Versatility is a key strength with connections for turntable, tape deck, and auxiliary sources. The speaker selector allows you to choose between two sets of speakers, enabling A-B comparison listening or simultaneous playback in different rooms.

The elegant aluminum faceplate features easy-to-use controls with center-point click stops for tone and balance adjustments, while the volume control employs a 41-click system for precise adjustments.

Power output: 15 watts per channel into 8Ω (stereo)

Frequency response: 20Hz to 20kHz

Total harmonic distortion: 0.5%

Damping factor: 30

Input sensitivity: 2.5mV (MM), 150mV (line)

Signal to noise ratio: 71dB (MM), 87dB (line)

Semiconductors: 2 ICs, 7 transistors, 7 diodes

Inputs: Phono, Tuner, Aux, Tape (REC/PLAY)

Features: Tone controls, Loudness switch, Speaker A+B selector, Headphone jack

Dimensions: (Width x Height x Depth) 380 x 124 x 269 mm (15 x 4.9 x 10.6 inches)
Weight: 5.2 kg (11.5 lbs)

This Japanese-crafted Pioneer SA-5500 II delivers impressive sonic performance that belies its modest specifications. With its warm, detailed sound signature and rock-solid reliability, this vintage gem will make a wonderful addition to your audio setup. Experience the classic Pioneer sound that audiophiles have treasured for decades.

Asking $295; buy with confidence and benefit from Radique’s “Bumper to Bumper” warranty and Perpetual trade back policy.