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Hafler DH300 Monoblock forever?

Anyone know if it's relatively easy to convert a Hafler 300 monoblock back to 2 channel? I was under impression that they basically stared life as DH200's and were bridged to make them into DH300's. It does have 2 sets of binding posts but I haven't seen the insides yet.
fbird1969
rodman99999
6,158 posts
 
Hafler made a bridging kit for the DH-200. You can find the manual here: ( http://www.hafler.com/techsupport/pdf/DH-202_PC-7_bridgeKitForDH-200.pdf ) Your amp probably has this installed. If you can recognize the circuit(the PC-7 board), inside your amp: reverse the install procedure, per the manual.
fbird1969 OP
10 posts
 
Thank you. So, it sounds like if it has the PC7 board in there, it replaced what was there originally for that channel, and I'll need to find another board to revert it back to the original condition it was in as a DH-200, correct?
rodman99999
6,158 posts
 
No! Both active component boards(PC-6) of the original DH-200 will still be in place. The PC-7A(bridging circuit) is a separate, much small board, that should be located/mounted on the rear of the right heatsink, it's components facing to the rear of the amp.
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