Members twostone Posted November 5, 2005 Members Share Posted November 5, 2005 Just wnted to know more about these amps ? Link to comment Share on other sites More sharing options...
Members agedhorse Posted November 5, 2005 Members Share Posted November 5, 2005 Watcha want to know about them? I just might know a thing or two about the details... How many would you like to buy? I've got 8 or 10 left to sell, and tonight there's a rack of 8 sitting right next to me that belongs to another sound company. Link to comment Share on other sites More sharing options...
Members oldschooler Posted November 5, 2005 Members Share Posted November 5, 2005 what model are the AB amps? I think they are really decent amps. I have one and other then cleanings no problems at all. Link to comment Share on other sites More sharing options...
Members agedhorse Posted November 5, 2005 Members Share Posted November 5, 2005 I've got some well toured 710C biamped amps w/ 18dB x-over cards installed (your choice of freq) and 5 - 900A's in absolutely dead-mint condition w/ the latest electronics. e-mail me if you are interested (agedhorse@aol.com). I will warranty the 900's. Link to comment Share on other sites More sharing options...
Members smitty0069 Posted November 5, 2005 Members Share Posted November 5, 2005 I've got an 1100a that's been used for around 12yrs or more.The only thing ever needing repaired was a bad vol. pot.This thing is an "agedhorse" & absolutely rock solid reliable. I do have a ? for agedhorse.Is Mike[A B] Butler the friend of yours who designed this amp?I've seen his name on the pro sound forum & wandered if he was the person behind the design? Link to comment Share on other sites More sharing options...
Members agedhorse Posted November 5, 2005 Members Share Posted November 5, 2005 I do not know Mike personally, but he may have been one of the service dept guy. There was a Mike that worked there, but I didn't have much contact with the production folks. I have had no contact with AB over the past 5 or 6 years, other than one of the original owners. The company [changed hands] several times since then. Link to comment Share on other sites More sharing options...
Members poteiroscorp Posted November 5, 2005 Members Share Posted November 5, 2005 Agedhorse: PM me for models and prices of amps. Link to comment Share on other sites More sharing options...
Members poteiroscorp Posted November 5, 2005 Members Share Posted November 5, 2005 Please Link to comment Share on other sites More sharing options...
Members twostone Posted November 5, 2005 Author Members Share Posted November 5, 2005 I PM you AH about models and prices. Link to comment Share on other sites More sharing options...
Members agedhorse Posted November 6, 2005 Members Share Posted November 6, 2005 Sorry for the delay guys, I was out chasing cows all day. Your PM's are all answered so go check! Link to comment Share on other sites More sharing options...
Members bilbo71070 Posted November 8, 2005 Members Share Posted November 8, 2005 I have an AB 900 and love it. It's been very reliable and sounds great. Link to comment Share on other sites More sharing options...
Members twostone Posted November 8, 2005 Author Members Share Posted November 8, 2005 Thanks AH for PM me, I scored a 1100A for dirt cheap after reading this forum I bought it. These are huge amps and very heavy but it works great,and I really appreciate the input you guys gave about them. I didn't know that much about them until recently, seems that they have a good reputation in the SR biz. Link to comment Share on other sites More sharing options...
Members smitty0069 Posted November 9, 2005 Members Share Posted November 9, 2005 Originally posted by twostone Thanks AH for PM me, I scored a 1100A for dirt cheap after reading this forum I bought it. These are huge amps and very heavy but it works great,and I really appreciate the input you guys gave about them. I didn't know that much about them until recently, seems that they have a good reputation in the SR biz. Congrats.Ours has been an excellant amp for years. They are very beefy amps,but I'll gladly deal w/ the size/weight issue for the realiability that it has given over the years. Link to comment Share on other sites More sharing options...
Members agedhorse Posted November 9, 2005 Members Share Posted November 9, 2005 I've owned about 30 or so, including some protype 6 channel units that are now exactly 10 years old and still functioning flawlessly. Link to comment Share on other sites More sharing options...
Members twostone Posted November 9, 2005 Author Members Share Posted November 9, 2005 Wow, AH I guess if you own that many they must be pretty good Link to comment Share on other sites More sharing options...
Members FUXTOR Posted April 30, 2017 Members Share Posted April 30, 2017 Old thread, but I happen to have a 1100a that seems to get quite hot, and upon further hunting I have discovered a resistor R80 ( 5.6 K-ohm ) 2 watt that seems to have been charred? Wondering if anyone with more knowledge with these amps could enlighten me a bit? The resistor is only charred on one of the 2 identical boards?? Link to comment Share on other sites More sharing options...
Members agedhorse Posted May 1, 2017 Members Share Posted May 1, 2017 If this is overheated, it's the primary indicator that one or both of the high rail commutating switches is shorted. (or something in the corresponding circuitry is improperly turning the switch(es) on. This is a fairly difficult circuit to troubleshoot, you (or your tech) needs to really understand how the circuit works as there are the high and low rail commutation as well as the ground commutation of the low rail. It's a unique application of class H. The guy who developed it was an engineer for Altec, and when they dismissed the class H technology is impractical they started AB Systems. Class H (and G) of course became the standard topology for larger power amps until class D took over. Link to comment Share on other sites More sharing options...
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