Burmester 911 mk3
- Thread starter AudioExplorations
- Start date
Joe, you've already reached the heaven, but if you'd like to touch really it you've to demo a Burmester digital source (069, 089 or 111).
I think after you could lost the sleep for a coupling of days
I am hooked Rocco !!!!
It's only a matter of time my friend. I hope the 111 server is over the top good. If you ever hear one, please let me know.
Yes, Joe.
For what I know the 111's will be available in Italy soon. Surely If I'll listen it then I'll share it with all friends
Yes, Joe.
For what I know the 111's will be available in Italy soon. Surely If I'll listen it then I'll share it with all friends
Thank you Rocco!
Yes, and it works very well. Some people like Burmester preamps better with Dartzeel. I prefer Burmester amps with Burmester preamps. The 911's have more body, fullness and go lower in bass output than the Dart 108. I prefer the GAT with the Dartzeel 108, like I prefer the 077 with the 911mk3's.
garylkoh
WBF Technical Expert (Speakers & Audio Equipment)
That's one reason I asked. From what I've seen of the mono adapters, pins 2 and 3 are reversed on one leg of the Y-cable. So, theoretically, you can run the mono's with the GAT. I would assume that it's wired that way internally. So, the signal is connected to pin 3 and the ground is connected to pin 2 on one channel, and vice versa on the other channel. I don't know how the factory mono's will be wired, hence my question.
There is a possibility (depending on the internal wiring) that with the GAT, one channel has its input shorted out, and hence he is only running half a mono.....
That was my worry. He needs to talk to Burmester HQ who will be able to confirm.
Not a problem for you as you do not run dual stereo colosseum's in bridged mono right? You have a single stereo colosseum?
garylkoh
WBF Technical Expert (Speakers & Audio Equipment)
Not a problem for you unless internally the Colosseum is a bridged amplifier.... I don't see anything in anything I can find that says one way or the other. If it is a standard differential input, the amplifier just amplifies the difference between pins 2 and 3. With a bridged amplifier, and you short pin 2 (or 3) to ground, then half of the amplifier is unused.
garylkoh
WBF Technical Expert (Speakers & Audio Equipment)
Gary,
It seems to me that not all bridged amplifiers have this problem. If you short pin 2 (or 3) to ground and connect 3 (or 2) to + phase in one half the bridge and to the -phase of the other half of the the bridge both sections will go on working. We have to consider that the original 911 was a stereo differential and so each half of the mono bridge has a differential input.
garylkoh
WBF Technical Expert (Speakers & Audio Equipment)
Yes, correct. If internally, the amp has pins 2 and 3 reversed on the two channels and separate, then if you short the input pin 2 (in the case of Burmester) to ground and apply signal to pin 3, then you have a dual-differential bridge amp, and this will work.
However, if the internal bridging is single-differential, then you get this scheme below, and channel 2 would be shorted to ground, and while the bridged amp would still operate with no problems, you lose the effect of bridging as channel 2 would not be amplifying anything.
garylkoh
WBF Technical Expert (Speakers & Audio Equipment)
Sorry for the confusion. I only made the comment because in an earlier post, someone said that the factory mono's can ONLY be run with the balanced input..... which made me suspicious.
garylkoh
WBF Technical Expert (Speakers & Audio Equipment)
How the hell did you do all those fancy diagrams?
I grabbed the diagram from a previous post, and used Paint to add lines to it.
Gary,
I am a little confused at this point. Are my dual mono 911's able to use the Burmester rca to xlr adapters with my GAT without a problem and without losing 1/2 of each monoblocks output.
Joe,
No problem. Send them to me for some long and exhaustive tests and I will provide you with the definitive answer.
And perhaps the Aida's will love them! As I have little hope that you are interested in this option, I can supply a simple receipt.
Play them using the GAT. Using a voltmeter in AC connect one probe to any ground in the system - even the outer part of a RCA plug of the GAT will do. Now while playing measure the voltage of the negative speaker connector and then that of the positive. They should be changing with the music. If one of them is zero or around zero you are using only half of the amplifier. If both change, no problem, it is working properly!
Similar threads
