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A Class of its Own

The VOLTAiR Technology
The 120V technology is SPL's unique reference technology. It operates at a DC voltage of 120 volts. This is four times that of IC-based semiconductor op-amps. In the Professional Fidelity series it is referred to as VOLTAiR technology. The highest possible audio quality requires the highest possible audio operating voltage. 120V technology works with +/-60 V. To be able to handle such a high voltage, SPL has developed special proprietary operational amplifiers that can operate with a DC voltage of +/-60 V: the SPL 120V SUPRA operational amplifiers. This high voltage would destroy conventional components and operational amplifiers.
The 120V technology achieves exceptional technical specifications and sonic benefits. Technically - dynamic range, signal-to-noise ratio and headroom. Sonically - richness of detail and an absolutely relaxed listening experience.
“120V” in the name of the technology and is about the operating voltage inside the device with which the audio signals are processed, it has nothing to do with the local mains voltage from the mains power socket. The mains voltage from the mains power socket is actually transformed to the required secondary voltage in the device’s internal linear power supply with toroidal transformer. Rectifiers convert this AC voltage into DC voltage required in the audio device.
Technical 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)
278 x 100 x 342 mm
Weight
12.8 kg
Shipping weight
15.8 kg
*This information has been obtained from Manufacturers website. We advise that Features, Specifications & Price are subject change from Manufacturer without notice.
E&OE