settings_input_componentVersatile connectivity and built-in DAC/phonoKey factorexpand_more0 mentions
Digital inputs with a solid internal DAC, a phono stage, subwoofer output, and dual speaker terminals for A/B or bi-wiring let owners build complete systems in one unit. Many stream FLAC via NAS, use CD transports, or add turntables directly.
Strongly positive
speedAmple, clean powerKey factorexpand_more0 mentions
The 100 watts per channel drives demanding and low-efficiency speakers like KLH Kendall Towers, Klipsch Heresy 3, JBL L-100s and big Paradigm towers without strain. Several note they never need more than half volume to get very loud, clean output.
Strongly positive
graphic_eqNeutral, detailed, non-fatiguing soundNotableexpand_more0 mentions
Multiple owners describe the sound as balanced, neutral, and revealing without coloration, with good depth and soundstage on classical and choral recordings. Several say they can listen all day without listening fatigue.
Strongly positive
attach_moneyPunches above its priceNotableexpand_more0 mentions
Owners directly compared the A-S801 to amps costing several times more, including a McIntosh MA8900 and Anthem STR, and found little to no meaningful difference. Multiple long-term owners say it 'competes with amplifiers costing $5000' and call it one of the best bargains in high-end audio.
Strongly positive
upgradeBrings life to older/budget speakersNotableexpand_more0 mentions
Owners repeatedly report the amp revitalized older speakers like Polk Monitor 10s, restomodded ADS 701s, and vintage Advents, describing the improvement over previous amps as dramatic.
Strongly positive
tuneUseful loudness control and tone controlsexpand_more0 mentions
The loudness control is praised as a smart, well-engineered way to boost bass at lower volumes without artificial coloration, and tone controls help tame speakers or compensate for new/unbroken-in gear.
Widely praised
memoryCustom transformer and clockingexpand_more0 mentions
One long-term owner notes Yamaha uses a custom-built transformer (not toroidal) said to better manage bass, plus its own USB controller and master clocking system, contributing to a dead-neutral sound.
Widely praised