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The Proprius... According to Dave

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Graham Slee View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Graham Slee Quote  Post ReplyReply Direct Link To This Post Posted: 24 Aug 2016 at 8:11am
Scientific art.

A sound suggestive of tubes without the typical tube distortion.

This only comes from extending frequency response open-loop, such that when the loop is closed (negative feedback is applied) the full 180 degree negative feedback extends further up the frequency range.

The vast majority of power amplifiers are designed to efficiently use all the voltage supply such that the signal swings all the way to the positive and negative rails, and this dictates one of two topologies.

Neither are used in the Proprius, and therefore some power supply volts are inevitably wasted to allow the use of a voltage amplifier section which traditionally has a full frequency response.

Because this voltage is wasted it cannot be converted into power which means lower efficiency, and hence 25 watts instead of the 35 watts otherwise available (ref 8 ohms).


Edited by Graham Slee - 24 Aug 2016 at 8:12am
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Fatmangolf Quote  Post ReplyReply Direct Link To This Post Posted: 24 Aug 2016 at 8:40pm
I like the term Graham but must admit I meant the bit after your hard work and engineering brilliance where we move the boxes around our listening rooms.
Jon

Open mind and ears, whilst owning GSP Genera, Accession, Elevator EXP, Solo ULDE, Proprius amps, Cusat50 cables, Lautus digital cable, Spatia cables and links, and a Majestic DAC.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Graham Slee Quote  Post ReplyReply Direct Link To This Post Posted: 24 Aug 2016 at 10:20pm
Sorry, I told you I needed some new specs. Wink
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