I want to use this snubber PSU for the Jeff Rowland No 10 "Clone". Some changes?
DIY BPA300 6x LM3886 300W audio Amplifier
DIY BPA300 6x LM3886 300W audio Amplifier
reading the first few posts...
would anyone care to post a sine sweep from dc to 25 khz with an amp that has 1000uF per rail, and the same amp but with 10,000 uF / rail ?
use same kind of caps, just 10 of them paralell.
load on the amp should be a high power resistor,
or a complex load similar to a speaker.
that is, an inductor in series with a cap paralell to a resistor.
should go for about 0.5 v P-P input voltage.
I'd realy like to see the effect.
most say that a lot of caps on the rails will kill the mids and highs.
okay, then supposedly the sine sweep should show some form of drop.
if this is true.
my personal findings was .. mm well the more caps i added it sounded better to a point where it did not improove any more. and never got worse as i added more, listening by my ear.
snap in 105C generic electrolitics are quite cheap here, 10,000 /35 V ones go arund under a half dollar. my workhorse amp made from tda 1557q has 10 of them, running on a 100 watt toroid pushing 12 Vac, and i certainly did only noticed improvement by the time i added all 10 caps. oriinally it had only 1, but with bass heavy stuff the mids and highs did sound bad.
would anyone care to post a sine sweep from dc to 25 khz with an amp that has 1000uF per rail, and the same amp but with 10,000 uF / rail ?
use same kind of caps, just 10 of them paralell.
load on the amp should be a high power resistor,
or a complex load similar to a speaker.
that is, an inductor in series with a cap paralell to a resistor.
should go for about 0.5 v P-P input voltage.
I'd realy like to see the effect.
most say that a lot of caps on the rails will kill the mids and highs.
okay, then supposedly the sine sweep should show some form of drop.
if this is true.
my personal findings was .. mm well the more caps i added it sounded better to a point where it did not improove any more. and never got worse as i added more, listening by my ear.
snap in 105C generic electrolitics are quite cheap here, 10,000 /35 V ones go arund under a half dollar. my workhorse amp made from tda 1557q has 10 of them, running on a 100 watt toroid pushing 12 Vac, and i certainly did only noticed improvement by the time i added all 10 caps. oriinally it had only 1, but with bass heavy stuff the mids and highs did sound bad.
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