Yamaha A-S2200 Integrated Amplifier

Yamaha has been building precision amplifiers since the company's electronics division began in earnest in the 1950s, drawing on the same acoustic intelligence that shaped its concert-hall designs and professional-grade instruments. The A-S2200 sits at the center of the current lineup — not the flagship, but the point where Yamaha's engineering becomes genuinely uncompromising rather than cost-managed. It is built for listeners who want the authority of a fully balanced, high-current amplifier at a price that still leaves room to invest in great speakers.

The circuit runs fully balanced from the balanced XLR inputs straight through to the speaker terminals — not a pseudo-balanced implementation that converts to single-ended internally, but a true differential topology that rejects common-mode noise at every stage. Powering it all is a 625VA toroidal transformer, an overbuilt supply for a 90-watt-per-channel rating that explains both the A-S2200's ease at low listening levels and its 220-watt dynamic headroom into 2-ohm loads. The fully discrete MM/MC phono stage means a high-quality turntable belongs in this system from day one, without an outboard phono preamp adding another box and another power supply to the chain.

The industrial design is intentional, not decorative. Illuminated analog level meters reference Yamaha's golden-age studio and home components — the kind of metering that rewards you with a physical sense of the music's dynamics rather than a static number. The machined brass speaker terminals and chrome-plated brass feet are chosen for their acoustic properties (mass, resonance behaviour) as much as their appearance. PC-Triple C internal wiring — the same ultra-high-purity copper alloy used in premium cable products — runs throughout the signal path. Everything here is made to be listened to and kept, not traded out in two years.

Fully Balanced Circuit, Input to Output. True differential topology runs from the XLR inputs through the power amplifier section, rejecting noise at every stage rather than converting to single-ended partway through — a design choice that benefits both balanced-source components and standard RCA-connected gear alike.

625VA Toroidal Transformer. A transformer rated far beyond the amplifier's continuous output gives the A-S2200 the instantaneous current delivery that separates amplifiers that control demanding speakers from those that merely play them. Dynamic power reaches 220W per channel into 2 ohms.

Fully Discrete MM/MC Phono Stage. Both moving-magnet and moving-coil cartridges are accommodated by a discrete, component-level phono preamplifier — no op-amp shortcuts. RIAA equalization is accurate to ±0.5dB from 20Hz to 20kHz.

Illuminated Analog Level Meters. The backlit VU meters are not a styling exercise — they give you a real-time, intuitive read on musical dynamics that digital displays cannot replicate, and they reference a tradition of precision metering from Yamaha's professional and studio heritage.

PC-Triple C Internal Wiring. Yamaha specifies ultra-high-purity copper wiring (2.7mm diameter) throughout the signal path — the same conductor technology found in high-end aftermarket cables, now built into the amplifier itself and eliminating one more variable from the system.

Machined Brass Speaker Terminals and Feet. Pure brass terminals accept spade lugs, banana plugs, or bare wire and are hand-tightened at the factory. Chrome-plated brass feet are welded — not press-fit — for a mechanically grounded, resonance-controlled foundation.

Specifications

• Rated Power Output: 90W + 90W (8 ohms, 20Hz–20kHz, 0.07% THD); 150W + 150W (4 ohms)
• Dynamic Power: 105W / 135W / 190W / 220W per channel (8 / 6 / 4 / 2 ohms)
• Total Harmonic Distortion: 0.035% (CD/Balanced → Speaker); 0.005% (Phono MM → Line); 0.02% (Phono MC → Line)
• Signal-to-Noise Ratio: 114dB (Balanced); 110dB (CD); 96dB (Phono MM); 90dB (Phono MC)
• Frequency Response: +0 / −0.3dB (20Hz–20kHz); +0 / −3dB (5Hz–100kHz)
• Damping Factor: ≥ 250 (1kHz, 8 ohms)
• Input Sensitivity / Impedance: Phono MC: 150µVrms / 50 ohms; Phono MM: 3.5mVrms / 47k ohms; CD / Line: 200mVrms / 47k ohms; Balanced (XLR): 200mVrms / 100k ohms; Main In: 1Vrms / 47k ohms
• RIAA Equalization Accuracy: ±0.5dB
• Analog Inputs: 1× Phono (MM/MC), 4× RCA Line (CD, Line 1, Line 2, Line 3), 1× Balanced XLR, 1× Main In
• Outputs: Speaker terminals (2 pairs, machined brass), Preamp Out (RCA), Headphone (6.35mm), Trigger Out
• Power Transformer: 625VA toroidal
• Internal Wiring: PC-Triple C, 2.7mm diameter
• Speaker Terminal Compatibility: Banana plug, spade lug, bare wire
• Remote Control: Included (brushed aluminum with metallic buttons)
• Dimensions (W × H × D): 17-1/8" × 6-1/8" × 18-1/4" (435 × 157 × 463 mm)
• Weight: 50.0 lbs (22.7 kg)
• Finishes Available: Silver/Piano Black, Black/Piano Black