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Old 31st May 2002, 10:04 AM   #1
aaronpiet is offline aaronpiet  Germany
diyAudio Member
Join Date: Mar 2002
Location: Germany Hattingen
Default Preamp


which preamp is best ?
balanced line stage - Aleph p1.0 - Aleph p.1.7 or ??

I would prefer the p.1.0 because its easy build, but
nobody seems to have it.

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Old 31st May 2002, 01:02 PM   #2
oliverniekamp is offline oliverniekamp  Germany
diyAudio Member
Join Date: Sep 2001
Location: Düsseldorf Germany
Default Aleph P aleph L

I have used the aleph P 1.0 in unbalanced mode and now i use a aleph L.
Directly compared the L sounds better, cleaner, warmer with more space and better bass. I know that it could be different when you use the aleph P in balanced mode because the aleph L ist only unbalanced. I don´t now how big the differenced between the two modes realy is, my Aleph 30 has the unbalanced input stage from the aleph 3.
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Old 31st May 2002, 01:41 PM   #3
oliverniekamp is offline oliverniekamp  Germany
diyAudio Member
Join Date: Sep 2001
Location: Düsseldorf Germany
Default Aleph P Aleph L

The pictures a two Aleph L and unbalanced Aleph P (I didn´t test it yet) and power supply originally for P1.0 with different voltage regulation for the mosfet gates as in the originall circuit. It works for all aleph preamps with minor changes.
Attached Images
File Type: jpg aleph.jpg (94.7 KB, 1041 views)
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Old 1st June 2002, 07:05 AM   #4
reinhard is offline reinhard
diyAudio Member
Join Date: Dec 2000
Location: Germany
Default preamp

have a repair shop in NRW, Germany for Highendaudio, mostly from US and I´m working for
Aktive Audio (Pass Distributor)
As Pass Customers told me the old Aleph P is sounding better than the New 1.7. Maybe the 1.7 has a little bit more detail, but it is sounding a bit thinner in the bass region.
Personally I have a Balanced Preamp, but with
6H30PDR Tubes instead of Mosfet.
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Old 2nd June 2002, 08:37 PM   #5
BRunenr is offline BRunenr
diyAudio Member
Join Date: Apr 2002
Location: Czech Republic
can anyone describe sonical differences between Aleph P preamps and earlier X preamps?
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