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Which Pass amplifier for Klipschorn ?
Which Pass amplifier for Klipschorn ?
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Old 31st July 2019, 06:03 AM   #1
telonioos is offline telonioos  France
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Question Which Pass amplifier for Klipschorn ?

Hi everybody,

First post for me here, but registred since 2006 !!!

I've heard a few weeks ago, a Pass Alpeh J with little Onken speakers.

I wonder if such an amplifier could work great with my Klipschorn, and what would be the great choice for these speakers, in the Pass offer.

Thanks in advance for your answers, and please, excuse my poor english !

Vincent.
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Old 31st July 2019, 09:03 AM   #2
Zen Mod is offline Zen Mod  Serbia
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Which Pass amplifier for Klipschorn ?
M2 , what else ?



or , if you want original FW , why not SIT-3 ?

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Old 31st July 2019, 11:00 AM   #3
wdecho is offline wdecho  United States
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SIT 1, 2 or 3, Aleph J, M2, F4, BA-1. The only one I would stay away from, not saying it is not a good amplifier, is the F5. Too unforgiving with source with highly sensitive revealing speakers like Klipshorn. I personally favor the SE amplifiers with horns.
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Old 31st July 2019, 11:33 AM   #4
craigtone is offline craigtone  United States
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F7 is supposed to be magic with Khorns. There was an article in Radio & TV News back in 1957 (A New Look at Positive Current Feedback) and they saw big improvements on the bottom end of the Khorn. If you dig through the F7 thread you will have everything you need to build your own.
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Old 31st July 2019, 03:14 PM   #5
telonioos is offline telonioos  France
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Quote:
Originally Posted by Zen Mod View Post
M2 , what else ?



or , if you want original FW , why not SIT-3 ?


I would like to build it myself, so, not an original one.

I'm going to look at the M2.
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Old 31st July 2019, 03:15 PM   #6
telonioos is offline telonioos  France
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Quote:
Originally Posted by wdecho View Post
SIT 1, 2 or 3, Aleph J, M2, F4, BA-1. The only one I would stay away from, not saying it is not a good amplifier, is the F5. Too unforgiving with source with highly sensitive revealing speakers like Klipshorn. I personally favor the SE amplifiers with horns.

Thanks for your answer, which complete the previews post.
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Old 31st July 2019, 03:17 PM   #7
telonioos is offline telonioos  France
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Quote:
Originally Posted by craigtone View Post
F7 is supposed to be magic with Khorns. There was an article in Radio & TV News back in 1957 (A New Look at Positive Current Feedback) and they saw big improvements on the bottom end of the Khorn. If you dig through the F7 thread you will have everything you need to build your own.
Hi,

Why specificaly the F7 ?
The 2 others answers don't talk about it !

I'm going to read the F7 tjread.
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Old 31st July 2019, 05:21 PM   #8
wdecho is offline wdecho  United States
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I have built a diy version of a F7 and it works fine with horns but it is not available for diy'ers at the present time. Still in production and schematic not available for building. The F7 diy'ers just build from the information available on this site and filling in the blanks with a good guess on values and circuit. You will not be disappointed with the M2X boards or an AlephJ build with Klipshorns. I would stay away from F5 or F6 with horns. They sound great with a good source but not forgiving with not so good source. Horns are just too revealing with me with F5 or F6. I have built both. Still have my F5 but it does not get used, at least not lately. I own heavily modified LaScala's with a big sub I built.
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Old 1st August 2019, 01:09 PM   #9
craigtone is offline craigtone  United States
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Quote:
Originally Posted by telonioos View Post
Hi,

Why specificaly the F7 ?
The 2 others answers don't talk about it !

I'm going to read the F7 tjread.
It uses positive current feedback. Check out the article ... I think their comment was that they felt the lower speaker frequency response dropped from 30Hz to 20Hz or at least sounded like it did.
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Old 1st August 2019, 07:24 PM   #10
DougL is offline DougL  United States
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What about ACA?
Single ended, easy to build.

How much power do you need?
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