Luxman SQ-77T (1975)
A solid-state integrated amplifier marking the beginning of Luxman's transistor audio technology
Overview
The Luxman SQ-77T is a solid-state stereo integrated amplifier released in 1975. It represents a pivotal point in Luxman’s engineering history, marking the brand's transition into transistor-based audio design. While listed in some sources with a "/II" suffix, the model is consistently identified as part of Luxman’s early foray into solid-state amplification. It features three high-level inputs and a dual-gang precision stepped attenuator for volume control, suggesting a focus on signal purity and mechanical reliability.
Specifications
| Power output | 30 watts per channel into 8Ω (stereo) |
| Number of Inputs | 3 (High-level) |
| Volume Control | Dual-gang precision attenuator (stepped) |
| Power supply | AC100V 50/60Hz 42W |
Design
The SQ-77T is a solid-state amplifier, representing the beginning of Luxman's history in transistor audio technology. It was designed as an integrated pre-main amplifier, combining both preamplifier and power amplifier functions in one chassis.
Context
The SQ-77T is positioned as a milestone in Luxman’s product evolution, signaling the brand's shift from tube-based to transistor-based amplifier designs. It appears in listings among legendary Luxman models, though no direct product lineage or competitive positioning has been documented.
Market
A fully restored unit was listed for €995 on hifishark.com as of April 4, 2026. The model is described as rare, with one listing noting it was from the late 1960s—though the confirmed release year is 1975. Some online commentary suggests potential limitations due to dated components, particularly in the preamp section, but also acknowledges its sonic appeal.
eBay Listings
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