Alluring Sonic Performance Anchored by All-Analog Amplification: Conservatively Rated Arcam SA20 Integrated Amplifier Boasts Off-the-Charts Efficiency, MM Phono Preamplifier
The Arcam SA20 integrated amplifier's involving sonic performance and off-the-charts efficiency owes to its utilization of Class G amplification, which permits music's low-level details to come through unimpeded while ensuring the amplifier retains the power it needs during challenging passages. Honed to perfection at Arcam from years of testing and implementation by the company's engineers, the all-analog Class G uses Class A technology exclusively for low-level signals and an additional power supply for larger sections of the audio waveform, an engineering solution that eliminating crossover distortion (caused by Class A/B) and any potential power shortages during extreme swings (suffered by Class A). The result: Nothing at all close to Class D, and truly, the best of both worlds.
Outputting a conservatively rated 80Wpc and outfitted with an audiophile-caliber SABRE ESS9038K2M DAC, SA20 also offers the aural benefits of separates in a space-conscious footprint. It arrives with an armada of inputs to handle both digital and analog sources – including turntables, by way of its built-in MM phono preamplifier. A total of five analog inputs and three digital inputs give you the options you deserve. Speaking of choices, SA20 also touts seven digital filters that minimize distortion when using the coaxial and optical SPDIF inputs.
Of course, SA20's measured specs extend to a ridiculously low total harmonic distortion/noise ratio – a number that speaks to its quiet operation. You seriously need to hear SA20 to experience how smooth, detailed, and textured music sounds during playback. Class G amplification is no joke. If all that wasn't enough, a customized remote, headphone jack, 3.5mm auxiliary input, and full I/P control further crown SA20 as English royalty deserving of a risk-free audition in your home today. 100% Music Direct Guaranteed.
"The first thing that strikes you about the sound of the SA20 is its low-end grip, which seems more powerful than is usually the case with a normal-sized amplifier; clearly the power supplies are up to the task of controlling a set of bass drivers. It also has good clarity through the midband."
—Jason Kennedy, Hi-Fi+, 2019 Integrated Amplifier/DAC of the Year Award
- Extremely efficient class A/B amplification
- 80Wpc output
- Five analog inputs, including MM phono preamplifier
- Three digital inputs
- 32-bit SABRE ESS9038K2M DAC
- Full I/P control
- Total harmonic distortion + noise = 0.003%
Both channels, 8Ω, 20Hz—20kHz: 90W
Both channels, 4Ω, at 1kHz: 150W
Harmonic distortion, 80% power, 8Ω at 1kHz: 0.002%
Phono (MM) input:
Input sensitivity at 1kHz: 5mV
Input impedance: 47kΩ + 100pF
Frequency response (ref. RIAA curve): 20Hz – 20kHz ± 1dB
Signal/Noise ratio (A-wtd) 50W, ref. 5mV input: 80dB
Overload margin, ref. 5mV at 1kHz: 21dB
Nominal sensitivity: 1V
Input impedance: 10kΩ
Maximum input: 6Vrms
Frequency response: 20Hz – 20kHz ± 0.2dB
Signal/Noise ratio (A-wtd) 50W, ref. 1V input: 106dB
Frequency response: 20Hz - 20kHz ± 0.05dB
Total harmonics distortion + Noise: 0.0007%
Signal/Noise ratio (A-wtd): 115dB
Supported sample rates: Optical: 32kHz, 44.1kHz, 48kHz, 88.2kHz, 96kHz
Coaxial: 32kHz, 44.1kHz, 48kHz, 88.2kHz, 96kHz, 176.4kHz, 192kHz
Bit depth: 16-24
Nominal output level: 630mV
Output impedance: 230Ω
Headphone output: Maximum output level into 600Ω: 5Vrms
Output impedance: 1Ω
Load range: 16Ω – 2kΩ
Mains voltage: 110–120V or 220–240V, 50–60Hz
Maximum power consumption: 500W
Dimensions (WDH): 17.0" x 3.4" x 12.7"
Weight: 24.5 lbs.
User Manual (PDF, 11.8 MB)