08-05-2020, 08:32 PM
Diabolical Artificer Wrote:....8% THD at low levels, 10% at full whack, F response terrible. Music test, sounded absolutely lovely, big smile all over the mush, skanking about yon living room to 70's classic roots reggae, but everything sounded good on it.
So, nothing new here, we all know a bit of 2H sounds nice, but 8%! Nuts, so, I'll pose the question again, why bother with hifi?
Absolutely spot on Andy!
Because I had a penchant for impromptu night time concerts where I would nick mums Gibbo, and an amp, and do one of my impressions of Tony Iomi, Dad built me a little practice amp that I was allowed to run after dark.
The thing is actually a transistor circuit with a choke loaded, sliding bias, class A output stage, (it's powered by a PJ996 6Volt battery), think 60's car radio.
Due to the design of the output its always in a state of soft clipping, and has a fairly asymmetric "barn roof" amplitude distortion, it has technically got a dreadful specification but has a very distinctive sound, great for guitar. Probably its THD is through the roof of said barn!
One day a few months ago I was messing around with a radio circuit and using the little practice amp as an output for it, a piece of harpsichord music came on the radio as I switched on and I don't think I've ever heard such good rendition, (The Stranglers, Golden Brown ironically. RIP, David Paul Greenfield
).So yes. I'm with Andy, ultimately if it sounds good, it is good!
Maybe a few like minded people who are prepared to ignore specifications, could start a new movement in audio, based solely on listening pleasure.
Thanks,
Amie.
