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Old 8th December 2009, 10:09 AM   #11
brianco is offline brianco  Ireland
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I was too late to edit my post above.

Thank you all for your information and comments.

The model which I have is clearly an earlier version of the circuit above - from the electrolytics I would guess early 1980s. The board layout is much different, although from memory uses the same devices. The build quality is similar, though the AC mains powered PS case is a sheet steel rack-mount - not Plexiglass. There is an enormous shielded power umbilical hard wired to the Preamp and connected by a big multipin Studer studio plug to the PS

I will try to post some pics when I can walk again [ I have more Achilles tendon problems and am more or less immobile. ]

Last edited by brianco; 8th December 2009 at 10:15 AM.
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Old 8th December 2009, 10:23 AM   #12
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Quote:
Originally Posted by brianco View Post
......

I will try to post some pics when I can walk again [ I have more Achilles tendon problems and am more or less immobile. ]
wish ya fast recovery .....

meanwhile - you can use lazy time to search for some old files ( magic word : Beeeeeee )

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Old 8th December 2009, 11:55 AM   #13
brianco is offline brianco  Ireland
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wish ya fast recovery .....

meanwhile - you can use lazy time to search for some old files ( magic word : Beeeeeee )

Thanks A.

Will try, but it is mostly drawing of schematics of "spiders"! NOT my best or most natural ability, especially when they are part hidden by the form of construction and some components have had the printed information removed from them!!
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Old 8th December 2009, 01:15 PM   #14
Zen Mod is offline Zen Mod  Serbia
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Originally Posted by brianco View Post
Thanks A.

Will try, but it is mostly drawing of schematics of "spiders"! NOT my best or most natural ability, especially when they are part hidden by the form of construction and some components have had the printed information removed from them!!
naah - if major effort is needed for that , just forget ...... I'm schematic scavenger ...... that's main reason , really not worth any troubles

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Old 8th December 2009, 02:05 PM   #15
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Quote:
Originally Posted by brianco View Post
big multipin Studer studio plug to the PS
You probably mean a plug that looks like the one on the added pic, an industrial power connector type.
Sounds pretty rare for an early Schäfer & Rompf model to wind up in the UK.
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Old 8th December 2009, 02:17 PM   #16
brianco is offline brianco  Ireland
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Originally Posted by jacco vermeulen View Post
You probably mean a plug that looks like the one on the added pic, an industrial power connector type.
Sounds pretty rare for an early Schäfer & Rompf model to wind up in the UK.
That is almost, if not, the same plug Jacco. The pre has a very 'dense or solid sound. I am not surprised that it has a lot of driving capability!

I have had it a good few years and only restarted using it and reassessing it a few weeks ago. VERY musical and one of the few which allow some of the worst/more difficult DGG recordings to be less than aural torture!
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Old 22nd December 2009, 06:02 PM   #17
brianco is offline brianco  Ireland
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I have been able to photograph this amp......whether I can up-load it is another matter!

Happy Christmas

EDIT: Well, that is a first.
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Last edited by brianco; 22nd December 2009 at 06:05 PM.
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Old 28th January 2010, 12:24 PM   #18
brianco is offline brianco  Ireland
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Originally Posted by jacco vermeulen View Post
In case anyone would like to see some pics of the thing : http://www.asraudio.de/Dpdf/HistDBasColl.pdf

Only preamp model i've encountered that can directly drive a K1000. (7.5-8W in 8 output stage)
I have now obtained an English copy of the handbook from ASR's site. Noticing that they claim that this preamp produces 8 watts, I connected Impulse horns (95Db sensitivity) and was amazed at the result. This thing drives the speakers superbly well. Most of all it is very much more pleasant in terms of musicality. The perceived sound stage and focus have vastly improved and the speakers have also lost their, well....horniness. I think that this thing is amazing.

Thank you Jacco for the clue!
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Old 28th January 2010, 12:38 PM   #19
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Quote:
Originally Posted by brianco View Post
I have now obtained an English copy of the handbook from ASR's site. Noticing that they claim that this preamp produces 8 watts, I connected Impulse horns (95Db sensitivity) and was amazed at the result. This thing drives the speakers superbly well. Most of all it is very much more pleasant in terms of musicality. The perceived sound stage and focus have vastly improved and the speakers have also lost their, well....horniness. I think that this thing is amazing.

Thank you Jacco for the clue!
well .... even if Jaccovitty is usually clueless

Impulse ?

H6/Lali ?
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Old 28th January 2010, 12:49 PM   #20
brianco is offline brianco  Ireland
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well .... even if Jaccovitty is usually clueless

Impulse ?

H6/Lali ?
But I did wait until I found the information from the maker!!!

H2.....The best of them....but the Ta'au which is the bigger Lali is the same but with better cos(t)metics. H2s do need a large room to breathe. When I had them in a smaller house they were not able to work properly and although nice they had no real strengths.

Check this site:
the Impulse Loudspeaker webpage
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