Hafler circuit - attentuating the rears - diyAudio
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Old 23rd December 2006, 01:37 AM   #1
amt is offline amt  United States
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Location: oregon
Default Hafler circuit - attentuating the rears

Well my JVC HT receiver looks to be expiring on me so I thought Id try the Hafler surround sound matrix setup with an old Pioneer SX. The diagram below shows a pot with 25-200 at 3watt spec used for attenuation of the rears. Isnt that actually considered a rheostat? Whats the best device to use for this?

http://kantack.com/surround/images/surgif1.gif

And Im guessing that this is what the old Dynaco Quad Adapter was.
Its also shown on ESP but w/o a control for the rears.

http://sound.westhost.com/project18.htm


amt
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Old 23rd December 2006, 02:00 AM   #2
Geoff H is offline Geoff H  Australia
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Hi AMT. Yes, rheostat, wire wound pot. I used to use a 50 ohm 20w unit. Bit of over kill, it's what I had.

Geoff.
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Old 28th December 2006, 05:32 AM   #3
amt is offline amt  United States
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Thanks for the confirmation Geoff. I will pick up a rheostat and see how it sounds.

amt
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