Need to know if this is a common ground AMP? If it is can I plug in Polk SDA SRSs without problem? If not can I bind together two negative posts on two of the seven channels to use the Polk's?
Thanks
Scott...
Posted by: Altec
Re: 7700 Common Ground AMP - 07/28/08 01:46 AM
No, it is not a common ground amp. All the multichannel amps are essentially bridged amps for each channel, so the "ground" terminal is really the inverted polarity signal. This topology is very common these days because it allows a lower B+/- rail voltage which in turn means less heat dissipation at idle.
Posted by: Scott R. Burns
Re: 7700 Common Ground AMP - 07/30/08 03:02 AM
Thanks Altec,
So does anyone know if it is possible to use 2 channels of this AMP with a speaker system that requires common ground between the channels?
Can I just bind together 2 ground posts for the channels I am using for these speakers?
Posted by: Altec
Re: 7700 Common Ground AMP - 07/30/08 03:56 AM
Geez, why do I even bother......
Posted by: fm
Re: 7700 Common Ground AMP - 07/31/08 06:10 AM
I believe you will need to use a 7200. The 7700/7500 are "hot" on all terminals so connecting them would likely result in a amp protect shutdown.