Reduce Aleph 1.2 VCC to 34V

[NE WAY]

Consider me silly.

If I reduce the VCC of Aleph 1.2 to +-34V, (changing to a transformer with lower secondary output) and turn up biasing current such that it would produce output of:

60W@8 ohm
120W@4 ohm
240W@2 ohm
480W@1 ohm

Would it reduce the dynamic performance of the amplifier badly?

 

[Zen Mod]

depends what you see/need as dynamic performance

for current hungry spks, that's current

for highish and mild impedance module spks, that's voltage

 

[NE WAY]

Martin Logan Quest, 90dBm, but low impedance ~ 1 ohm at high frequency.

 

[Zen Mod]

in which case, your way of preserving/increasing current capability of amps, is good

it's good that high frequencies aren't demanding high W numbers

 

[Aleph5]

Currently driving similar speakers with a DIY Sony VFET amp and it works fine for me. There's probably some voltage division rolling off highs, but I don't hear an issue.

 

[NE WAY]

in which case, your way of preserving/increasing current capability of amps, is good

it's good that high frequencies aren't demanding high W numbers

Thanks for the reassurance 😊

 

[NE WAY]

Good to know that👍 as DIYer, just trying to look for a plausible excuse to tweak it 😂