2. amps-preamps
  3. 1115930136

New H20 Signature S250

After reaading a lot of reviews about these amps, i emailed Henry to build me (2) S250 to biamp my speakers, I have an immediate response from him and this is what he say:

Hi Patrick,

The Amps are the Signature Stereo which has an addional Big Toroidal
transfomrer which makes it a true dual mono design, for $300 more which
makes the amp now $2800. Of course, The amp is improved over the
regular stereo across the whole Audio Spectrum. If you want the regular
version stereo, let me know.

Thanks for the number and I'll try to give you a call sometime today.

Henry

Does anyone yet owned this amp?
rneclps

Showing 2 responses by dotsystem

dotsystem
81 posts
 
John

Two general comments:

1) I don't know how similar the Callisto is to the Calypso, but the July Stereophile reviewed the Calypso and discussed impendance behavior. The significant point for the H20 is that John Atkinson recommended that the amp have an input impedance of at least 30K ohms if used single ended. The H20 has an 8K ohm input impedance.

2) You do not mention if the XLR cables and XLR preamp outputs were thoroughly burned in. In my experience XLR connectors can take a long time to burn in - longer than RCAs. Adaptors and binding posts can take a long time as well. Until fully burned in, the treble suffers. There can be an issue of component burn-in if there are parts in the preamp that are only exercised through the balanced path.

Bob
dotsystem
81 posts
 
I heard my H20 stereo unit in a highly evolved Tact system and the unit maintained its basic sound signature relative to other amps I heard in that system.

The preamp used is very important and should be of high quality as well as impedance compatible to hear the H20 at its best.

Bob
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