Speaker connections on Wurlitzer 2600 - 543 amp

[repairman]

Could anyone tell me which terminals are 4 ohm / 8 ohm / 16 ohm and 500 ohm?  The screw terminals are marked G (ground) A B C and D.  I'm not sure which is which.  I'd like to connect a pair of remot 8 ohm speakers to the amp.  Also the internal speakers in the jukebox were connected to the "A" terminals and Black to G.

Thank you for any help.

[jukenorman]

It's probably going to require a bit of experimentation. The conventional way would have been to use the CV system for remote loudspeakers and to reduce the power output to the cabinet speakers (the B or C connections) based on the load taken by the remotes. You could try your 8 ohm speakers on B or C and see how the sound balance (loudness) is, compared to the cabinet speakers. I think it's very unlikely that the amplifier would be overloaded by leaving the cabinet speakers on A, in your case, unless you were screwing the volume up to absolute maximum.

Norman.

[phillg]

You could also look at the rating of the cabinet speakers - if they're 4ohm speakers and they're connected to the A terminals, you can assume that A is 4ohm and that the connections will likely continue (B = 8ohm, C=16ohm, D=500ohm).

Either way: Just make sure you turn down the volume while experimenting!

[repairman]

Thank you for all your suggestions.