Aleph 3 transformer question

[karellen]

Hello!

I want to make a pair of aleph 3 monoblocs and all I ve found for the power supplies are 220 va toroids with 2X21 v or 2X15v outputs

the real thing will do with 2X18v ( I guess)

so I must take a compromise; higer voltage with low amperage or the opposite.

any advice will be greatly apreciated!

and merry christmas to all.....

[MikeW]

It depends on your speakers and bias. If you don't need to crank up the volume go with the 15.

[karellen]

thanks, mike

the speakers are 6 Ohms, 89 db

just in the middle of 8 and 4 ohms.....

Mmmmmmm

[GRollins]

I vote for the 21V, which will give you roughly 28V rails. Then use a CRC(RCRC...) filter on the power supply to drop the voltage along with the ripple. The Aleph circuits aren't overly sensitive about rail voltage, so if you end up with 24 or 27V rails it'll work just fine.

Grey

[karellen]

Hi Grey

thanks for your valuable opinion ( I`ve a lot respect on you) and

sorry for the delay on responding.... Holidays you know.....

[isabido]

Karrellen, my english level is very bad.

I make de Aleph 3 or 30, can you write me a email please?

Thanks.

isabido@ibersilva.es

[isabido]

My transformer is AC 2x24V 500VA,

Have I problem with those 4V of but?

Ideal is AC 2x20 no?

Thanks!