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Original Message
Gershman A-G crossovers - pic
Posted by BS64 on February 22, 2021 at 14:52:18:
I am finally getting ready to refurb my Gershman Avant-Garde's, original model. A couple of issues lead me to gutting them and tidying things up. First and foremost, a 25-30 pound burlap bag of tiny lead shot that had ripped open.
Then I found the crossovers mounted directly behind the woofers. Crossovers are wired-up with Audio Research HF-164 monster cable, the insulation of which is tacky/gummy, I believe due to the outgassing of the hot glue they used to hold everything together. Connections are slip-on type at the driver ends, and solder tabs cut to make a spade at the binding post end.
I bought some 20 AWG solid core, silver plated copper hook-up wire, and invested in a small solder pot and 1/2 pound of 7% silver solder. Goal is to solder the leads at the drivers, and make spades at the binding post end by dipping in the solder pot. Contemplating mounting the xovers outside the cabinets. Need to examine that possibility more closely.
Anyway, attached a pic for those who are interested. The blue wires that are tied together went to the toggle switch mounted to the binding post plate. It simply bypassed a resistor in the "on" position. So I bypassed the switch. I like my HF's. Not sure what role the white wire bypass plays. Hard to tell with all the glue covering the connections. But I will eliminate the slip-on connector and hardwire that jumper.