I have a 1500VA transformer laying about that can deliver 50, 55, or 62 VAC depending on how it's wired (no center tap). I am not a fan of big hardware for a single channel (Pass designs) because of the size. So classA in general is pretty much out... but what else would you do? build a 5.1 integrated amp for a whole system? a house-destroying sub-amp? a 3-way stereo+sub amp? Would you make it discrete or all chip amps, or a combination of them?
Looking for ideas. Think outside the box. Winner receives a 😀
Looking for ideas. Think outside the box. Winner receives a 😀
Triamped stereo set up.
AC coupled mid and treble, possibly class A or enriched AB.
Bridged bass amps to get rid of the coupling capacitors.
Use 50V (bridged) for bass, 62V tap for midrange, 55V tap for treble.
🙂 sreten.
AC coupled mid and treble, possibly class A or enriched AB.
Bridged bass amps to get rid of the coupling capacitors.
Use 50V (bridged) for bass, 62V tap for midrange, 55V tap for treble.
🙂 sreten.
Design a virtual ground circuit to keep the rectified voltage divided to two rails and the use it for whatever you fancy with 2*33-44 VDC?
Didn't QUAD do that in for instance the 405?
http://home.jps.net/~shiloh/
Didn't QUAD do that in for instance the 405?
http://home.jps.net/~shiloh/
sreten said:
Never thought of that! Out of curiosity, why not use the 62V bridged for bass? Seems to me you want as high a rail as you can get for mo' power...
Anyhow, great idea.
It occurs to me that this is the perfect start for a VERY small subwoofer using ESP's P48 sub processor and P68, high power variant, bridged.
Stocker said:
Just trying to balance powers a bit, 50v bridged = 100V.
Assuming 8 ohm :
50V only would give ~ 100w bass : 25W mid : 25W treble.
using taps = ~ 100w bass : 38W mid : 30W treble.
Of course its far more complicated than the above,
different driver sensitivities and impedances etc.
🙂 sreten.
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