Wayne Parham Messages: 18707 Registered: January 2001
Illuminati (33rd Degree)
Resistor R3 is the big resistor that mounts off-board and connects to the two spade lugs in the lower left corner of the PCB. It is used on three π and four π speakers, except with the TD12S. It's not used in the one π, two π, six π or seven π models though.
Wayne Parham Messages: 18707 Registered: January 2001
Illuminati (33rd Degree)
Oh, yeah. Now that you show me that picture, I remember seeing it before. Now I remember you talking about substituting that monster block with a group of ten-watters, totally fine 'cause you're running tube amps.
But those are 8Ω resistors, aren't they? Looks like they're in series-parallel, so you'd want 8Ω parts. Might wanna get out your handy-dandy meter and check across R3 to see.
Bill Epstein Messages: 1088 Registered: May 2009 Location: Smoky Mts. USA
Illuminati (2nd Degree)
Too lazy to open her up and it's been a long time since I had to have parallel and series explained to me as bare naked resistors on the beach....
I ohmed the speaker terminals and got 9 on one, 10 ohms on the other speaker which is interesting 'cause the left channel with 10 ohms always seems to have a dB or so more output.
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