Pioneer SX-5590 (1976–1978)

It weighs 29.2 kg. This is not a receiver for the timid.

Overview

The Pioneer SX-5590 was a solid state AM/FM stereo receiver built for European markets between 1976 and 1978. It was the European counterpart to the North American SX-1250. Pioneer marketed it under the "BlackFace" designation, for its distinctive front panel. It is big in every direction: 556 mm wide, and drawing up to 1,200 watts of power under load.

Owners call it a "monster receiver." It weighs 29.2 kg (64 lbs), so it needs serious shelf support and deliberate placement.

The SX-5590 never entered widespread production outside Europe, which is why it has a reputation as a rare find.

Specifications

Manufacturer	Pioneer
Product type	Solid State Stereo Receiver
Production years	1976–1978
Power Output	reportedly 160 watts per channel RMS into 8 ohms
Power Output	120 watts per channel into 8 ohms (both channels driven)
Total Harmonic Distortion (THD)	0.1% or less
Damping Factor	50 (at 8 ohms)
Power consumption	1'200 W max
Dimensions	556 x 186.5 x 464.5 mm (WxHxD)
Dimensions	22" x 7.5" x 18.75"
Weight	29.2 kg
Weight	64 lbs
Made in	Japan

Collectibility & Value

The SX-5590 is consistently described as rare. Forum discussions and marketplace listings note its scarcity compared to its North American siblings. Collectors want it for its lineage and its power, and it appeals to fans of high-output 1970s receivers. Recent listings have suggested values between $1,500 and $1,750, though actual transaction data is limited. Units appear in conditions ranging from "used 7/10" to "STILL LIKE NEW," and many have been restored, including recapping and servicing. There is no original MSRP documentation and no service records, so pricing remains speculative and highly condition-dependent.