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Void Acoustics Infinite 8 V2 Amplifier
Collection from London Waterloo preferred but can courier. Happy to deliver in London for a fee. Cash preferred 07764436403
The latest generation of Infinite amplifiers build on the success of their predecessors. Infinite amplifiers have always been synonymous with reliability and sonic accuracy, needless to say this philosophy has been carried though with the new V2 range.Our obsession with detail has resulted in many new features and improved specifications. A velocity sensing protection circuit has been added to all models that monitors back EMF, the velocity sense circuit allows the output to be attenuated for a very brief period if the amplifier detects severe over excursion or potential damage to a loudspeaker. Other new features include switchable Hi and Lo pass filters on larger models and binding posts for rapid install connections.An all new output topography was chosen for the V2 amplifiers. A Class G output stage has resulted in an increase in output power and lower current draw. Thanks to a new design of feedback circuit, distortion and has been lowered to a point that surpasses class H output stages. We call this new output topography Super G and is only available in the new V2 Infinite amplifiers.Heavyweight amplifier from Void Acoustics, bigger brother to the mk1 amp as repaired here. Very powerful and good performance with very low distortion even at maximum power, threshold of clipping. Limiter disabled for testing. 40Hz testing caused some audible modulation with 50Hz mains coming from the amplifier transformer (transformer hum) and a very small amount of 50Hz ripple was present on the waveform crests (visible at all frequencies at the threshold of clipping) suggesting a very stiff power supply.
*2R continuous sine testing caused current limiting and activation of the amplifier’s SOA circuitry leading to premature clipping on the negative parts of the waveform. This occurred at near full power, and as a result two measurements are given below. 2R continuous measurements are the upper figures in the 2R column of the table, and should be considered long-term continuous outputs. This is the level beyond which the SOA protection circuitry would activate. 2R 100ms burst ratings are the figures in the table marked with an asterisk.
All in all, a very sturdy amplifier exhibiting low distortion, plenty of power, and excellent behaviour at clipping. The photos below show a selection of output signals; all frequencies and load impedances yielded similar performance. Frankly, nothing untoward.
Freq8R Performance4R Performance2R Performance WattsTHD%WattsTHD%WattsTHD%40Hz14310.0924010.123112
4158*0.40
-1kHz13780.0624150.103128
4095*1.21
-10kHz13260.1121620.163089
3978*2.36
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