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Adcom GFA5500 2ohm stable? & house wirinig

I am redoing my stereo & I plan to use my Adcom GFA-5500's to power subs & use my girlfriends parasound amps to power my speakers. Is it OK to run my GFA5500 in a 4ohm mono load or is that a bad idea? Looking at Adcoms site I beleive it states 2ohms is OK but I am not 100% sure that is the case .... just wanting to be sure.

Is it a good idea to run dedicated power directly from the fusepanel to the theatre area? We are redoing my house & I am thinking it would be good to run power from the fuse panel directly to where the thearte stuff is. At this time there will be 6 two channel amps all of which develop 200-300w at 8ohms. I figured with the current they can draw a dedicated powerline should be done
?. Is that a good idea or overkill? Next to the stereo stuff in a adjacent room (no wall seperating the 2) I plan on running a dedicated power line to my fishtank, about 500 gallons of saltwater.

thanks for any help/info!!
viggen900
samzx12
1,232 posts
 
The GFA 5500 I used to have back in 99 ran very very hot. They are decent amps for the money but you can get much better for not alot more. Just my opinion. Yes 2 subs will take a big load off the amp for sure. That might be the best route to take.
viggen900's avatar
viggen900 OP
64 posts
 
Any suggestions on what amps I should consider? I only paid $400 for my amp.... probably can't go much more then $1000 for whatever I would buy. I have had my eyes on sunfire stuff.... how are their amps? I saw they have a amp that's 600x2?
seditious3
184 posts
 
I've never been a Carver/Sunfire fan at all, but that's just my opinion. Please give us room size and all associated equipment and speakers, and then you'll get recommendations.

Generally speaking, I would not recommend Adcoms for a sub. You can do much better for under a grand (used).

So whatcha got?
viggen900's avatar
viggen900 OP
64 posts
 
yea... used is what I plan on doing!!

Room size is 13 across x 21 long with 8ft ceilings. 15ft of one side opens up to another room & about half of the back wall opens up as well. My girlfriend is moving in with me & we are combining stereo's.

Presently she has a 10yr old yamaha receiver (my denon is 16yrs old) which will be upgraded in a year to something.... cross that bridge when I get there. My speakers are better then her's so we are using these....

Main speakers Infinity Kappa 8.1 vII's
Rear surrounds Infinity Kappa 8.1VII's
Center Infinity Kappa Video (& I hope to do 7.1 with same Kappa Video's on side of room)

each front Kappa 8.1 will have a parasound amp powering it & the rear 8.1's will share a amp. Not sure the model but around 200w per channel (girlfriends amps).

Sub-not 100% sure on what I will be using, we are redoing my house & not sure exactly how much room I have to work with. Either a pair of 12's or a pair of 15's is what I want to use.

hoefully that helps....
seditious3
184 posts
 
Well, it really depends on what subs you're getting. You could consider powered subs, which would be better than subs and the Adcom.

There was a posting here a while back by a woman who bought B&W 801s and was disappointed with the bass. She was running them off an Adcom 200 wpc. Everyone suggested getting a "better" high- current amp. She did, and it changed everything.

It's not all about wattage when it comes to amps. There is a difference.
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