opossumcrush
The Central Scrutinizer
I just aquired a new to me power amp (Adcom GFA-555). I do not have a preamp. Can I use one of my intergrated amps as a preamp? Pioneer SA-7700,SA-7100, Marantz 1070, Technics SU-V707.
New power amp, dumb question.
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opossumcrush
The Central Scrutinizer
Well I hooked up one of my integrateds, and turned it on. It worked, but I did'nt have any volume control. Am I doing something wrong?
Which pre-amp did you use? Near as I can tell, the SA-7700 does not have pre-amp outs, and the SA-7100, Marantz 1070, and Technics SU-V707 do. The pre-amp outputs should be controlled by the volume and tone controls on your integrated. Are you sure you connected the pre-amp outs and not the tape outs to the inputs on the Adcom? If it was hooked up correctly, try one of the other integrateds that has pre-amp outputs to make sure it's not something else.
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kennyshark
New Member
not familiar with the others but I have a pioneer SA9100, you should have pre-out main in RCA connectors on the SA7100, with a switch to seperate the pre-amp from the power amp, connect the pre-out to your power amp and switch the switch to seperate, hook your speakers to your (Adcom) power amp and turn off the speaker selector on the front of your pioneer.
opossumcrush
The Central Scrutinizer
I used the Technics. I ran the rca cables for the pre out to the adcom. I'll try the Marantz and see what happens. Thanks
opossumcrush
The Central Scrutinizer
Well the trusty Marantz did the trick. I guess it will get me by, until I can find a preamp. I appriciate the help.
Just a thought, but why not experiment with the Marantz and the Pioneer 7100 before chasing after another preamp? You might find that you quite like the sound with one of those as your preamp and be able to save some money that you could use on other gear or more music.
