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Multi-Way Conventional loudspeakers with crossovers

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Old 11th January 2002, 02:33 AM   #1
paulb is offline paulb  Canada
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Default Advent Powered Loudspeaker?

Anybody know anything about these? Just got a pair for free, obviously early production models. I have a service manual, too. They're bi-amped. Very impressive looking, too. Nice woodwork.
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Old 12th January 2002, 02:26 PM   #2
paulb is offline paulb  Canada
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Hope nobody minds too much if I bump this for another shot at it. Threads fall off the main board pretty quickly these days. Last chance, I promise.
My friend told me that the overload protection kicks in on these things, so I may have to do some repair work.
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Old 12th January 2002, 06:57 PM   #3
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Default Powered Advents

When i was in the hifi biz we sold a few of these -- very nice speakers in their day. A hard sell due to the price and the amps built-in.

The amps are fairly easy to blow up so be careful...

dave
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Old 12th January 2002, 08:26 PM   #4
paulb is offline paulb  Canada
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These ones came with the amps pre-blown, apparently it'sbeen a real problem with this pair. Your comment confirms my thinking: I'll look at replacing the internal amps.
Thanks for the info.
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Old 12th January 2002, 08:37 PM   #5
Helix is offline Helix  United Kingdom
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'bumping' is frowned on here
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Old 12th January 2002, 08:43 PM   #6
paulb is offline paulb  Canada
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Ouch, I can feel your frown from all the way over here.
Agreed, I very rarely do it but I really wanted to solicit info on these things I inherited.
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Old 12th January 2002, 10:46 PM   #7
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Default replacement amps

Quote:
Originally posted by paulb
These ones came with the amps pre-blown, apparently it'sbeen a real problem with this pair. Your comment confirms my thinking: I'll look at replacing the internal amps.
Thanks for the info.
The XOs on these are probably fine. I'd think about replacing the amps with some gain-clones -- http://pub4.ezboard.com/ffakeidsfrm1

dave
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Old 12th January 2002, 10:58 PM   #8
paulb is offline paulb  Canada
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Thanks. XO means crossover? Just opened up the cabinet, supply is +/- 50V, a little high for chip amps.

Interesting discussion group there.
The link seemed funny (I typed it in and found it). Let me try it here:

http://pub4.ezboard.com/bfakeids

Hmmm, seems okay in the preview window.
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Old 13th January 2002, 01:55 AM   #9
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Quote:
Originally posted by paulb
Thanks. XO means crossover? Just opened up the cabinet, supply is +/- 50V, a little high for chip amps.
I'd look at that as an opportunity to change the power-supply to choke input ... but it is probably easier to find an amp board kit that uses 50V.

The 100W AKSA uses 49-0-49. 100W for a tweeter is a bit of overkill thou.

You could use the existing PS for such a unit, and put in another supply for a gain-clone for the tweeter.

dave
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