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Old 27th July 2005, 09:45 PM   #1
regal is offline regal  United States
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Default buying a panny instead of amp1

I was going to build an amp 1 because of the 4ohm capability which greatly expands the options with DIY speakers. There is a catch with it requiring an oddball transformer 300VA 2x22V in order to run 4ohm. There are 2x22V 185VA transformers at Digikey but there really aren't any public power supply designs which show how to hook up 2 transformers to get +-30V.

I am back to picking up a panasonic SA70 reciever, yes it limits me to 6ohm or higher speakers but I think I will be happy with it based on my experience with the XR SA25.
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Old 27th July 2005, 10:46 PM   #2
cowanrg is offline cowanrg  United States
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avel lindberg stocks a 330va toroidal with dual 25v secondaries... this should be close enough.
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Old 28th July 2005, 12:15 AM   #3
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What about 2 pieces of 2x22V 120VA for 10 a piece from hypex.nl ?

Edit: hm forget my answer
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Old 28th July 2005, 03:39 AM   #4
fb is offline fb  Australia
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I'm thinking of going the other way - I currently own a Panasonic XR50, and I'm wondering whether the currently available class D/T amp kits will provide an upgrade in sound quality?
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Old 28th July 2005, 09:20 AM   #5
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My panny SA-XR50 sounds as good, if not better, than my tripath based stuff.. But I relegated it to use for the home theater and occasional music listening.
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Old 28th July 2005, 11:55 AM   #6
fb is offline fb  Australia
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Quote:
Originally posted by motherone
My panny SA-XR50 sounds as good, if not better, than my tripath based stuff.. But I relegated it to use for the home theater and occasional music listening.

Ok thanks. Guess I won't be dipping into DIY amps just yet then....
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Old 28th July 2005, 01:11 PM   #7
tktran is offline tktran  Australia
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Do you know any Aussie retailers that sell the SA-XR50 for a good price?

The Panasonic Australia website lists the a high retail price compared to the US retail...
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Old 28th July 2005, 10:25 PM   #8
fb is offline fb  Australia
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I paid roughly 600 at a Betta Electrical, early this year, so prices should have come down a lot I guess. They were cheaper than JB Hifi and a few other retailers I bothered to ring.
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Old 29th July 2005, 06:56 AM   #9
tktran is offline tktran  Australia
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Thanks for that.

regards,
Thanh
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