Aleph X and Quad ESL

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jacco vermeulen

jacco vermeulen

Member
Joined 2004
I suppose your Quads are the 55's ?

In my view the bare minimum solid state for an ESL63 is 50 watts.
With a single ended output i think you should be aiming for 100.

The ESL63 has the highest phase shift and lowest impedance at frequencies where it needs lots of current.
I would aim for very high bias.

After the Aleph series i am building have completed i am planning to employ a second set of ESL63, as active subwoofers for an extra 3 dB in the low region.
 
R

rsbay

Member
Joined 2004
rstaudio.de
Hello,

you are right, I have 4 of the 57's Quad in a stacked configuration - 2 per
channel. At this moment I have a "Son of Zen" Amp an both speakers at
one channel in a serial connection.

Now I plan to build an Aleph X with around 100W - 12 MOSFET's, +/-22V,
6A. I this this should be enough. Also I want to try to change the
stacked configuration to parallel.

Regards

Ralph
 
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