PS Audio: Yesterday I asked how it could be that a switching power supply can regulate its output without yet another power amplifier being inserted into the supply?”

Paul McGowan writes:  Yesterday I asked how it could be that a switching power supply can regulate its output without yet another power amplifier being inserted into the supply? We know that to regulate a traditional power supply of a power amplifier (something we’d love to do for best sound) we need to add a […]

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PS Audio: Continuing our thoughts on power supplies and the differences between a classic linear supply and a SMPS”

Paul McGowan writes: Continuing our thoughts on power supplies and the differences between a classic linear supply and a SMPS, I thought it might be helpful to list some generalized plus and minus’s of both.  For this post I will keep the supplies focused on power amplifiers – I do this because there lies the […]

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KEN KESSLER: Dixons, morons, FM and shoddy thinking.

(Slightly revised by the author 22/08/06) When you see the words ‘An era ends’ and ‘Dixon’s’ in the same headline, something unpleasant must be afoot. After all, the mainstream press usually pays attention to home entertainment only when it can sneer, like the time David Beckham spent £10,000 on a home theatre system and the […]

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Echoes reveal the shape of a room

The shape of a room can be modelled using echoes produced from sound, new research has found. Like bats who emit sounds in order to navigate, researchers can now plug sounds into a computer algorithm to map a room. The team were able to build a full 3D image of a room using four microphones […]

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