Heat heat and more heat??


My Jeff Rowland model 8 amp seems to be giving off more heat than I can ever remember. The sound still seems great, but the amp gets hot quicker than I ever remember ( heats up the room quickly!) and it is still warm even after several hours after shut down. Any ideas as to what's going on? Is it time for a trip back to Mr.Jeff?
128x128daveyf
Hi Al, I have looked at the back of the amp, all of the screws are recessed and seem to have a specific job regarding the amp structure. ( I am concerned that loosening any of them could be problematical as to what they are connected to inside the casing). I will see if Cardas does offer this kind of adapter...hopefully,it would solve the problem. I am also planning on contacting the factory as the amp still runs hot ( I am concerned I have damaged a resistor, as you have stated). ( Although the sound seems to be ok). I will also ask them what is the hook-up protocol given the balanced aspect to the sub. This is so crazy, and I am kind of annoyed at the dealer who failed to alert me to this issue.
Thanks.
Dave, rather than using an adapter you might also consider simply purchasing a 3-pin male XLR connector and wiring the one connection (black wire to pin 1) yourself. For one thing, that would undoubtedly be a good deal less expensive than using a Cardas adapter. Parts-Express.com has lots of choices of suitable connectors, costing just a few dollars.

Good luck. Regards,
-- Al
Also to note that the XLR connections are non standard from Rowland. I had lots of weird stuff happening with my Rowland until I discovered that. I don't remember how the connections are different, but on mine there was a difference.
Thanks guys, I am not comfortable with wiring up XLR connectors. So, my next option is to ask the factory how the heck one is supposed to use this subwoofer with their 'balanced' amp. I have never used the amp in the balanced mode, my preamp is single ended. Frankly, I have never seen a need to go balanced in my home. As a former pro musician, we would run cables that were lengthy to our gear....across full stages etc., these cables were 40-60' in length. The cables were not that well insulated and I can see how running balanced was beneficial. In the home environment, where I am running cables that are what...1.5meters typically ( and VERY well shielded) I just don't get it. The extra expense and hassle for balanced..why??
Now with this issue, I really don't get it!
Main question is have I damaged my amp due to the subwoofer hook-up. It seems so based on the heat it is now giving off.Ugh.
Al, one more question...could I connect the ground wire from the sub to my preamp, with the other two connections going to the amp? The preamp has a ground connector for a turntable, which I use for that purpose; could I hook up the sub ground there too?