lab commentary

The Soulution 710 stereo power amplifier with its circa 135 watts (8 ohms) didn’t fall into the category of high-wattage amplifiers, but speaking of power the 700 mono blocks are quite another story: 428 watts at 8 ohms and a massive 860 watts at 4 ohms are indeed a statement. And we must take into account that during the lab checks the mains voltage dropped to 220.2 volts; with a constant mains supply of 230 volts the bridged 700 monos would pass the 1,000 watts mark. Measured against this huge performance yield the S/N ratios are very good, distortions are extremely low across the board. Only the first two harmonics can be detected perfectly graded in the distortion spectrum, the transient response of the extremely broadband giants is perfect. And no matter how forcefully Soulution’s heavyweight contenders may dig in with music – in stand-by they make do with 12.9 watts. All measurements were taken in bridged operating mode via the unbalanced input.

Output power:
Nominal power @ 8 ohms (1% THD):   428 W
Nominal power @ 4 ohms (1% THD):   860 W

Distortions:
Distortions (THD+N, 10 watts @ 4 ohms):   0.0026 %
IM distortions SMPTE (5 watts @ 4 ohms):   0.0022 %
IM distortions CCIF (5 watts @ 4 ohms):   0.0025 %

Signal-to-noise specifications:
Unweighted S/N ratio (- 250 kHz):   -82.8 dB
Unweighted S/N ratio (- 20 kHz):   -93.2 dB
S/N ratio (A-weighted):   -95.6 dB

Others:
Input impedance:   3.78 kOhms
DC output offset:   < 0.5 mV
Gain factor:    31.9 dB / 39.4 times
Sensitivity (fully driven @ 4 ohms):   1.49 V
 
Power consumption:
Off:   0 W
Standby:   12.9 W
 
Dimensions:
W x H x D:   56 x 30 x 59 cm
Weight:   96 kg / piece

Soulution Audio
Spemot AG
Industriestraße 70
4657 Dulliken

Telefon: +41 62 2 85 30 40

Internet: www.soulution-audio.com

Here you can look behind the scenes at Soulution’s.