The Plinius SA-103 stereo power amplifier is a Class A amplifier capable of delivering up to 125 watts per channel in both Class A and Class AB mode. Bridged Mono RCA and Balanced Mono XLR circuits used in the SA103 allow Monoblock operation delivering in excess of 400 watts.
This amplifier gets you into serious listening without breaking the bank. The Plinius SA103 are often sold as monoblocks and if you want to do that, and you have time to organise it, the factory can ensure they are made consecutively.
Plinius’ distinctive heatsink profile has allowed us to maintain the classic look and produce an amplifier capable of operating in Class A without the use of troublesome fans or other methods used for cooling. Its 500mm by 455mm footprint belies the power it produces and these units sit comfortably beside big speakers, understating somewhat their contribution to the speakers’ performance.
As with all Plinius amplifiers, premium components have been used throughout. There is the addition of a 12 Volt trigger which will allow integration into a semi automated system.
These units are at the top of the Plinius range, sitting right under the SA Reference amplifier. With responsiveness and control they faithfully support your speakers as they seek to replicate the original artists’ efforts for your listening pleasure.
Technical Specifications
POWER:
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
DISTORTION:
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
RISE TIME:
Typically 5µs
HUM & NOISE:
100dB below rated output 20Hz to 20kHz, A-weighted
INPUT IMPEDENCE:
47k ohms
GAIN:
RCA Inputs: 32dB
Balanced Inputs: 38dB
POWER/CURRENT CONSUMPTION:
700W
2.1A (485W) Class A Idle
0.4A (92W) Class AB Idle/Standby
DIMENSIONS:
Height: 220mm
Width: 500mm
Depth: 455mm
Weight: 38kg
Brand | |
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Finish | Black, Silver |
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