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Old 13th April 2006, 04:18 AM   #1
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Join Date: Dec 2002
Location: dry ol Melbourne Australia
Default Disgregate amp for $$ cheaper posting - folly or doable? *Urgent!

Iím very keen to buy an amp thatís cheap on eBay in the US with 0 bids so far, closes in about 3 hours. But one $ hurdle.

The USPS limit is 44 pds. The packed weight on this amp is *56 lbs.
I checked 4 people and 3 freight companies, and freight would cost **more than the amp!


So:

The seller has agreed to the idea - take the amp into a local electronics shop, who takes out the heavier items eg transformers to trim a total 6 Ė 7 kg (13 lbs) off, and put the removed items in a separate box, to get under the 44 lbs limit.
Even paying his fee, someone at this and to reconnect & the check, I estimate the saving is about $US 194!


It is 100 w > 8 ohms, 200 w > 4 ohms, 400 w > 2 ohms
So the PS is very robust. It is dual mono, but donít know if dual trannies. Someone here thinks itís insane, someone else (both with way more experience than me) thinks it straightforward.

An eg 750 VA toroidal weighs typically 5.2-5.5 kg, if it only has a single trannie that doesnít weigh 13 pds, what other item should be ďpulledĒ?

Doable? Crazy? Minimum precautions?

Thanks
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Old 13th April 2006, 05:31 AM   #2
jerishi is offline jerishi  United States
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Join Date: Jan 2005
Location: wa. state
Default auction...

I'd be wary about getting excited ... about an object many miles away... that requires (major) de- and re- construction.. to even get it. As they say on 'e-bay'..." Happy Bidding. " ... (and more again)... Still, if it's what you want... it's only money. Take care!
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Old 13th April 2006, 06:04 AM   #3
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Join Date: Dec 2002
Location: dry ol Melbourne Australia
If itís a single trannie, weighing what I suspect (say 800 VA > about 6.2 kg or 13.6 pds) all that needs to come out is one component.

If a heatsink were removed, the output devices might get damaged in transit, even if the amp were stuffed(/).

The key question, if need be Ė what would be the next most sensible components to bring out??
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Old 13th April 2006, 07:39 AM   #4
lndm is offline lndm  Australia
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Join Date: Mar 2006
Location: nsw
The power xfmr is far and away the heaviest component in most solid state amps. Any unnecessary poking around is a static risk and is not advised.
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Old 15th April 2006, 08:12 AM   #5
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Join Date: Dec 2002
Location: dry ol Melbourne Australia
Thanks for all the advice. I think the safer path, and probably better sonically, is to build an Aksa.

With a load of 3.5 ohms, I thought I needed the 100 watter, but checked with Hugh from Aksa and the less expensive 55 watter will watter will handle it.

Cheers
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Old 15th April 2006, 07:53 PM   #6
jerishi is offline jerishi  United States
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Join Date: Jan 2005
Location: wa. state
Default amp build

I've heard the AKSA amp is a great project, VERY well designed, and believe choice you made is excellent. Also, he's a website if help is needed. I'd like to build one ,and will, when funds are available.
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