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Plinius SA-103

220 watts of pure Class A power into 4 ohms with 400 watts into 8 ohms mono output. This is a world class, solid state amplifier at any price point. The Plinius SA-103 is very musical and detailed, with great rhythm and pace. It has a balanced, natural sound with a phenomenal build quality. Weighing in at 83 pounds, this is an impressive piece of equipment.

The Plinius SA-103 has not received the recognition it deserves. Martin Logan and Magnepan owners really need to audition this amplifier. The Plinius SA-103 is a perfect match for the Magico S5 and S1 speakers. We are really impressed with this combination. The Plinius SA-103 is a one of the best solid state amplifiers on the market at any price.

Choice Audio is Minnesota’s exclusive Plinius dealer


125 watts RMS per channel into 8 ohms
220 watts RMS per channel into 4 ohms
Both channels driven from 20Hz to 20kHz at less than 0.05% total harmonic

Mono Output:
400 watts RMS into 8 ohms, 730 watts RMS into 4 ohms, 20Hz to 20kHz

Frequency Response:
20Hz to 20kHz ±0.2dB
0dB at 1Hz and -3dB at 70kHz

Typically <0.05% THD at rated power 0.1% THD and IM worst case prior to clipping Current Output:
50A short duration peak per channel
Fuse protected

Hum & Noise:
100dB below rated output 20Hz to 20KHz, A weighted

Input Impedance:  47k ohms

RCA Inputs: 32dB
Balanced Inputs: 38dB

Power/Current Consumption:
2.1A (485W) Class A Idle
0.4A (92W) Class AB Idle/Standby


Dimensions: (H x W x D)
8.75″ x 19.75” x 18″

Weight: 83 lbs

Color:  Available in silver or black