an SDA based HT

Larry Chanin

Originally posted by raife1
It wouldn't do any harm, but I do not think you would be happy with the sound quality. In addition to lowering the output power of the amp, the 50% higher impedance may cause some noticeable peaks and nulls in the amp's frequency response. Some amps also have much higher distortion in bridged mode. This can cause a "hardness" and loss of detail in the sound.

I would send an email to Parasound and ask how a bridged HCA 1500A in will perform with a 12 ohm speaker. Specifically ask about frequency response and distortion specifications in bridged mode.

Also, be sure to tell Parasound what type of system you are putting together. If you are going to use another HCA 1500A to power the front speakers, the sound of the stereo HCA 1500A may not closely match the sound of the bridged HCA 1500A, which would defeat the purpose of having timbre matched speakers.

Hi Raife,

Thanks again for the excellent advice. I'll discuss this with Parasound, but it sounds like I might be better off going through the trouble of snaking an other pair of speaker wires to the front of my room. I have attic space above my theater. The difficult part will be snaking the wire up the back wall to the attic. The walls have batt insulation in them.

Larry

DarqueKnight

If you think the install will be difficult, you might want to hire a local home theater installation service to run the wires for you. That way, if an "accident" happens to your ceiling or walls, the installer will cover it. It shouldnt cost that much since all you are doing is running wire to existing outlets.

A local installer charged me $75 for running the speaker wires for my surround speakers through the attic. I installed the wall plates myself. The outlet area was in a difficult to access area and I didn't want to risk damaging my ceiling. Plus, the installer had all the proper tools and experience in case he ran into some unforseen difficulty.