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Tweaks for systems, rooms and Do It Yourself (DIY) help. FAQ.

Re: Hafler DH 500 Offset And Bias Adjustments.

P1 for DC is near the edge of the board and is adjusted to 0 at the speaker output.

P2 for bias is near the center of the board and is adjusted to 350mA with one fuse pulled and the meter across the empty fuseholder.

Repeat both for the other channel.

Line current will be about 2A.




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