audmod01
Super Member
Larry;
Thanks for that note on the magnetic cartridge situation. I was uncertain what to expect there. I did not think Fisher would expect the Electra VI to use a ceramic cartridge. I thought about the possibility that I might have connected some of the B+ to a lower than needed voltage source going to the preamp stage, however I don't think I did. I can do a quick check to verify the plate voltages of these tubes just to be sure.
I did some listening yesterday to several stations on FM and the sound is quite good overall. It is not as good on the low end as my AR-2Ax speakers, but then the original cost of the XP-55B compared to the AR speakers is an indication of their performance. With cabinet installed speakers there is always the issue of mechanical feedback to a turntable or changer. Really deep bass notes can cause a stylus to jump the groove and so Fisher, like others, had to incorporate some restriction on low end response to avoid that. I did use greater value coupling capacitors throughout to help with this issue. Overall, I am pleased with the results.
If the physical balance of the cabinet with all equipment installed turns out to be an issue, I might add some more ordinary metal handles on the back of the unit as additional stabilizers for carrying. That way two hands could be used in carrying the cabinet.
Joe
Thanks for that note on the magnetic cartridge situation. I was uncertain what to expect there. I did not think Fisher would expect the Electra VI to use a ceramic cartridge. I thought about the possibility that I might have connected some of the B+ to a lower than needed voltage source going to the preamp stage, however I don't think I did. I can do a quick check to verify the plate voltages of these tubes just to be sure.
I did some listening yesterday to several stations on FM and the sound is quite good overall. It is not as good on the low end as my AR-2Ax speakers, but then the original cost of the XP-55B compared to the AR speakers is an indication of their performance. With cabinet installed speakers there is always the issue of mechanical feedback to a turntable or changer. Really deep bass notes can cause a stylus to jump the groove and so Fisher, like others, had to incorporate some restriction on low end response to avoid that. I did use greater value coupling capacitors throughout to help with this issue. Overall, I am pleased with the results.
If the physical balance of the cabinet with all equipment installed turns out to be an issue, I might add some more ordinary metal handles on the back of the unit as additional stabilizers for carrying. That way two hands could be used in carrying the cabinet.
Joe