Yamaha A-S501 Amplifier - Silver
Classic Hi-Fi Amplifier with Digital Capabilities
Yamaha A-S501 is a refined stereo amplifier designed for lovers of true analog sound who also want the convenience of modern digital connectivity. Built on Yamaha’s well-established “Natural Sound” philosophy, this model delivers an impressive output of 2 x 85W (RMS at 8Ω), making it ideal for a wide range of speakers, including more demanding models.
ToP-ART Technology
At the core of the A-S501 is the well-balanced ToP-ART (Total Purity Audio Reproduction Technology) architecture – fully symmetrical internal wiring with short signal paths and a stable anti-resonance base. This not only ensures stable and accurate sound but also enhances spatial perception and stereo separation.
Sturdy Construction, Advanced Engineering
The amplifier’s build features high-quality components such as a custom transformer, aluminum heat sinks, large 12,000 μF block capacitors, and gold-plated terminals – each contributing to warm, clean, and detailed sound. With the addition of the Pure Direct mode, the signal path is minimized, bypassing all filters and control circuits to ensure the most accurate playback possible.
Connectivity Options
This amplifier is fully prepared for modern needs – thanks to its built-in digital inputs (optical and coaxial), it easily connects to TVs, Blu-ray players, or streaming devices while preserving the digital signal until amplification. For analog enthusiasts, there is a dedicated MM phono input for turntables and a subwoofer output to enrich low frequencies.
Design and Features
The amplifier's design is elegant, with a brushed aluminum front panel and finely crafted controls. LED indicators and a rotary selector make for intuitive use, even in dimly lit rooms. One of its standout features is the analog volume control with adjustable Loudness function, which compensates for the natural loss of bass and treble at low volume – providing a rich and balanced soundstage even during quiet listening.
Features
- Power Output: 2 x 85W (RMS at 8Ω), 2 x 120W (max)
- ToP-ART symmetrical design with minimal signal loss
- Pure Direct mode for signal accuracy
- Digital inputs
- Phono MM input for turntable
- Analog inputs
- Subwoofer output + output for two speaker pairs (A/B or A+B)
- Adjustable Loudness function and tone controls
- Bluetooth support (via optional YBA-11 adapter, sold separately)
- Gold-plated connectors for RCA and speaker terminals
- Intelligent power-saving system with Auto Power Standby
- High-quality remote control included
What's in the Box?
- Yamaha A-S501 Amplifier
- Remote Control
- 2 x AAA Batteries
- Power Cable
- User Manual
Technical Information
Amplifier Section
- Minimum RMS Output Power (8 ohms, 20 Hz–20 kHz): 85 W + 85 W (0.019% THD)
- Maximum Power (4 ohms, 1 kHz, 0.7% THD, Europe): 120 W + 120 W
- High Dynamic Power/Channel (8 / 6 / 4 / 2 ohms): 130 / 150 / 185 / 220 W
- Damping Factor: 240
- Frequency Response: 10 Hz – 100 kHz (±1.0 dB)
- Total Harmonic Distortion: 0.019% (CD to SP Out, 50 W / 8 ohms)
- Signal-to-Noise Ratio (CD): 99 dB (input shorted, 200 mV)
Connectivity
- Audio Inputs / Outputs: 8 / 2
- Digital Inputs: Optical / Coaxial
- Subwoofer Out: Yes
- DC Out: Yes
Audio Features
- Pure Direct: Yes
- ToP-ART (Total Purity Audio Reproduction Technology): Yes
Power and General
- Standby Power Consumption: 0.5 W
- Power Management (Auto Standby): Yes
- Dimensions (W x H x D): 435 x 151 x 387 mm
- Weight: 10.3 kg