SPL
SPL Audio Performer s900 Stereo Power Amplifier
SPL Audio Performer s900 Stereo Power Amplifier
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Right in the center – with big sound! Featured on Stereophile July 2026 magazine.
The SPL Performer s900 stereo power amplifier marks the middle of the line and is based on the big SPL Performer s1200 stereo power amp in terms of the selection of components and conceptual design.
This is where sonic greatness meets performance specs that perfectly
match high-resolution but not overly power-hungry speakers of any size.
With an amplifier output of 2 x 370 W (4 Ω) [2 x 420 W (2 Ω); 2 x 200 W (8 Ω)],
it truly has enough reserves to powerfully drive any loudspeaker.
The Performer s900 stereo power amplifier is a compact size powerhouse. It excels in exceptional headroom thanks to the SPL VOLTAiR technology and impresses with a detail-rich, vivid, honest and musically outstanding sound.
Conventional solid-state power amplifiers tend to operate in a critical range of the built-in components – this results in unpleasant harmonical artifacts. Tube power amplifiers also distort at their limit but their characteristical behaviour softens this roughness and harshness. Non the less this is a falsified representation of the sound image.

Thanks to VOLTAiR Technology, the Performer s900 can process much higher levels without even coming near to a critical range. All components constantly operate in the optimal range. The result is a very pleasant, natural and relaxed sound experience. Enjoy your music in every detail and without any listening fatigue.
Features
Features
Specifications
Specifications
Analog Inputs: XLR (balanced), RCA (unbalanced)
Input impedance
20 kΩ
Input trimming
0 dB to -5.5 dB in 0.5 dB steps
Input sensitivity
8 dBu
Loudspeaker Outputs: Binding posts with ø4mm cable hole (screwable) and banana plug
Output power (RMS, 2 Ω)
2 x 420 W
Harmonic distortion (1 kHz, 2 Ω)
< 0.07 %
Output power (RMS, 4 Ω)
2 x 370 W
Harmonic distortion (1 kHz, 4 Ω)
< 0.06 %
Output power (RMS, 9 Ω)
2 x 200 W
Harmonic distortion (1 kHz, 8 Ω)
< 0.04 %
Output voltage (peak to peak)
112 V
Output voltage (RMS)
40.2 V
Output impedance (20 Hz – 20 kHz)
< 0.035 Ω
Frequency range (-3dB)
10 Hz – 80 kHz
Amplification gain
26 dB
Damping factor (1 kHz, 8 Ω)
> 280
Noise (A-weighted)
-123 dBu
Internal Linear Power Supply with Shielded Toroidal Transformer
Toroidal transformer
866 VA
Operating voltage (Input stage)
+/- 60 V
Operating voltage (power stage)
+/- 64 V
Operating voltage for relays, LEDs, AMP CTL
+ 12 V
Mains Power Supply
Mains voltage (selectable, see fuse chamber)
230 V AC / 50; 115 V AC / 60 Hz
Fuse 230 V
T 4 A
Fuse 115 V
T 8 A
Power consumption
max. 900 VA
Idle power consumption
20 W
Stand-by power consumption
< 0.3 W
Dimensions & Weight
W x H x D (width x height incl. feet x depth)https://youtu.be/Dy5SQN2gRHo
278 x 100 x 342 mm
Weight
12.8 kg
Shipping weight
15.8 kg
What's in the box
What's in the box
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