Infinity RS1 Servo problem


Hi all. I have an Infinity RS1 speaker system. Unfortunately the servo unit has a bad channel. It looks like one of the op amps is bad. Would anyone have any idea of a source for replacements ? Thanks for any help.
winstonx
russ69, I spoke to greg from the company that made the eq for the infinitys and he said no problem using the dbx with the ib woofer towers. he said if anything you might, and he used that term lighty, said the bass wont go as low as with the infinity xover. I have found that not to be the case. bass is tight, deep,and smooth. and the dbx offers more control overall. I dident want to use it at first,but my xover started to act up. I have been using it for a year now and very happy with it. there are a lot of guys on the audiokarma site with the same speakers and using the dbx 223 and they all are very happy with it. and remember, the bass panel crosses over to the mid panel at 140 hz. many reviews say the emims don't like going that low. I have my bass fq set at 150hz to help the emims out. now the bass panels go to 150 and then cross over to the mid/high panels. do your self a favor and get one. they are cheap enough. I picked up a used one for $100. I leave mine on along with the bass amps on all the time. if you are going to un plug it after listening then turn off the amp first. if you unplug the ex first you will get a slight pop through the bass panels. hookup is very easy. I have the model with the 1/4 inch plugs so I picked up the adaptors at parts express. getting the infinity xover fixed is a pain in the ass these days. almost no body does it. I found a guy out in ca that works for the company that made them for infinity. I sent him mine in feburary,still dident get it back yet. I call every few months to see how its coming along. dident get to it yet!!. even if or when I get it back,im still going to use the dbx. I just would like to have the factory unit because its part of the set and can always use it again. good luck. im sure if you go for it you will be happy. I am
Tomtab,
Thanks for the info. You seem to have a good handle on the ins and outs of the Infinity X-over. Everything you have said is the same as I understand it. I don't have the mid panels from the IRS 1Bs, I got the extra woofer towers from my brother who had the full system and 2 spare bass tower set-ups with 4 crossovers. I run my system with some ML electrostatic panels. I'll probably cross over a little lower than you do. I have it set at 100hz now.
I wont be able to change out my system until after Thanksgiving but I'll post up my results as soon as I get it working.
Thanx again.
russ, keep in mind 95% of speakers don't have a servo feedback control for the woofers. the 1b bass column is just a big box with six 8 inch woofers in it. a good amp is all that is needed to drive it.although you need some kind of xover so you can sent just a bass signal to it you said you have it set to 100 hz? does that mean you have a dbx now and are using it. the speaker setup you stated must sound pretty good. ml panels for the top and infinity bass columns for the bottom. a few thing to remember if you get a dbx223. its stereo and mono so be sure to follow the stereo connections. that's why on the back panel there are markings on top and bottom of the inputs. the only led that should be on the front lit up is the middle power one.nothing else. i had a parasound 3500 running the bass for a while.strong,deep and powerful. with power to spare. a pair of odyssey mono's for the top panel. very smooth,clean wonderful soundstage. a very good amp indeed. i like to change things up a bit every once in a while,like all us audio nuts do. so now i have the odyssey mono's on the bass and a pair of jolida 502p's running in mono for the top. jolidas still breaking in but they sound good already. not sure which setup sounds better. both very,very good. i just cant seem to hear all these little differences everybody seems to think they can hear. i have been in audio for 40 years and to me all decent amps (and im not talking comparing a $800 amp to a $4,000 amp. sound very close. unless something is really off i just cant tell. do i have a tin ear????? ive had 7 or 8 different amps on my top panels and they all sound 99% the same,go figure. the reason i say this is because they all sounded very good. the speakers to me always offered the biggest sound change. 10 speakers,10 totally different sounds. amps are tougher for me. but big infinitys like tube amps for the top so thats what i have for now.let me know how it goes
"... so you can sent just a bass signal to it you said you have it set to 100 hz? does that mean you have a dbx now and are using it..."
No, I have the Infinity controller LOW PASS CUTOFF set at LOW. The literature says that is 100HZ.

"...its stereo and mono so be sure to follow the stereo connections..."
I read the owners manual on the web, I understand how it gets connected. Heck, if you can hook up the Infinity box and not blow up your system, you can hook anything up, lol.

"...the speaker setup you stated must sound pretty good. ml panels for the top and infinity bass columns for the bottom.."
I run a pair of AES six pack tube amps and a Cary SLP-98 preamp on the top and a Parasound A21 for the bass. Yes, it's not bad but a tad on the bright side. I need to put it in a bigger/softer room.

"...i have been in audio for 40 years and to me all decent amps (and im not talking comparing a $800 amp to a $4,000 amp. sound very close. unless something is really off i just cant tell..."
40 plus years for me also. Yes, a lot of good amps sound very much the same. The biggest differences are in the bottom end and the top end.

Thanx again.
I got the DBX crossover today. Got it all plugged in and running. It took a few minutes to get the settings in the ball park but I seem to have a handle on it now. I ordered the DBX223XL with XLR connectors. I used XLR to RCA adapters mostly because I had some on hand and just needed two more adapters to finish the connections (six total). I'm not the golden eared audiophile I use to be and I didn't have a lot of hours playing the Infinity towers in my system. However, I am pleased with the results. Once set properly I seem to have the same performance as the original Infinity crossover. If I'm missing some extension, I can't tell, it goes subsonic with ease. At least at the volume levels I listen to. I have the crossover point set at around 70 Hz and that seems to work for my system.
For the guys that have never heard one of the big Infinity tower systems or the big Genesis systems you have no idea how awesome and full scale these systems sound. It's a rare treat and to duplicate that sound cost tens of thousands of dollars. I bought the towers from my brother for 1500 bucks. Thanks for the tip Tomtab, I'm back up and running and all in all I'm very happy with the results.