Click title to read one, or click date to read all below it.
08-19-11
It would be better to get a balancing transformer. look at j ... Rwwear
08-19-11
Bat sells the adapters you need and they are made to work wi ... Stereo5
08-20-11
If you are confident you want the combination, keep your sin ... Lloydelee21
08-20-11
So there is a sound degradation when using adapters or rca t ... Podolaw
08-20-11
If you are going rca to xlr because you like the 2 component ... Lloydelee21
08-20-11
There is no inherent superiority of balanced vs. single ende ... Gmuffley
08-20-11
When one considers the noise cancellation properties of bala ... Rwwear
08-20-11
There are so many considerations relative to the specific ge ... Mitch2
08-20-11
I couldn't agree more mitch. http://www.jensen-transformers ... Rwwear
08-21-11
Mitch2, rwwear, and the rest of the community: supposing the ... Seakayaker
08-21-11
If going from balanced to single ended you may gain somethin ... Rwwear
08-21-11
I will answer this by saying the folks at jensen are availab ... Mitch2
08-21-11
Yes, the pro to consumer isomax gives you the step-down rati ... Seakayaker
08-21-11
Another thought, though i am not the transformer answer guy, ... Seakayaker
08-21-11
Oh, and one more thing... you could get a cathodyne (split l ... Seakayaker
08-21-11
If you are not looking at replacing your preamp with a balan ... Response34
08-21-11
A bad idea. balanced amps require an inverting and a non-inv ... Hifigeek1
08-22-11
Mitch2, just curious... why did you select an input transfo ... Bob_reynolds
08-22-11
I apologize for hijacking the thread, but i have a question: ... Maril555
08-22-11
I had rogue magnum 99 preamp and bat vk200 for a month or so ... Ihcho
08-22-11
"when one considers the noise cancellation properties o ... Michael_moskowich
08-22-11
Of course there are many instances where hum is not a proble ... Rwwear
08-22-11
bob, that's an excellent question. i'm not entirely sure ... Almarg
08-22-11
Yes, al, i think you have it right. bob, the up to 60k bandw ... Seakayaker
08-22-11
Hi guys, i just had a chance to check in and see bob's quest ... Mitch2
08-23-11
Al, seakayaker, mitch2, isn't the cmrr of an input transfor ... Bob_reynolds
08-23-11
Hi bob, once again you raise excellent questions. in the a ... Almarg
08-23-11
Fine job again, al. bill whitlock and team have documented t ... Seakayaker
08-23-11
As al discusses, perhaps the cables also make a difference. ... Mitch2
08-24-11: Atmasphere
The reason you use balanced lines is lower noise and lower distortion, plus the opportunity to eliminate the sonic role that the cable has in the system. BTW, length (or shortness) of the cables has nothing to do with it!
Now if you are using a single-ended source with a balanced amplifier, you will not be able to realize this advantage. Thus comes the idea of a transformer. You would use the transformer directly at the output of the source, keeping the cables between the source and the transformer as short as possible. However the transformer (including the Jensens, which are excellent) will have a sonic artifact which is easily heard, even if properly loaded. If the transformer is kept as close to the source with the cables to it as short as possible, CMRR degradation issues will be minimized.
Now, if the main interconnect cable can be short, you are better off just making the connection with a single-ended cable. The amp, BTW, is not going to give a hoot if it has differential inputs, and the BAT does.
But if the cable is to be very long, over 20 feet, then there will be an advantage to using the transformer solution (assuming an excellent transformer), despite the artifact it introduces, because that artifact will be *less* than that of a single-ended cable being run long distances like that.
Mari555 asks about the other way 'round, where the preamp is balanced and the amp single-ended. There are several ways to do this. The most elegant is to modify the amp with a balanced input, and even though the amp is single-ended, it is possible to set it up so that the amp uses both the non-inverting and the inverting connections of the XLR.
The second method is to use an input transformer that does the conversion.
Finally, an adapter can be used to good effect, and while this technique is cheap and easy- you get what you pay for- it does not take advantage of the balanced output of the preamp and so the resulting sound will not be as good.
Just FWIW, we built the world's first balanced line preamps. We've been answering these questions for a long time.
Atmasphere (Threads | Answers | This Thread)
08-24-11
How does a transformer work to convert the amp to balanced a ... Rwwear
08-24-11
For atmasphere: your knowledge, helpfulness, and long experi ... Seakayaker
08-24-11
ralph, with all due respect, this solution did not work for ... Mitch2
08-24-11
Al, you're exactly on the right path regarding the performan ... Kirkus
08-24-11
Kirk, thanks very much for the outstanding explanations, all ... Almarg
08-24-11
Seakayaker, the issue with the use of a transformer is one o ... Atmasphere
08-25-11
Just a couple of quick points here. first - the notion that ... Chipmunk
08-25-11
Uh, victor, he was talking about an single-ended source driv ... Atmasphere
08-25-11
Chipmunk, i have one of your vk 40 pre amps currently drivin ... Mystang
08-25-11
No problems, the only drawback would be in not utilizing the ... Chipmunk
08-26-11
Sorry atmasphere, i didn't mean to imply that cmrr was the r ... Kirkus
08-26-11
all of the line output transformers i have ever seen need s ... Atmasphere
08-26-11
proper transient response and flat frequency response of cou ... Kirkus
08-27-11
Forgive me, but i skimmed through this thread and could not ... Talk2me
08-28-11
Talk2me, several references to your amp that i've seen indic ... Almarg
08-29-11
it is indeed! did you get a chance to check the bandwidth a ... Atmasphere
08-30-11
i just ran an existing scripted procedure on the m-2, and it ... Kirkus
08-30-11
Hi talk2me . . . al managed to find much more information ab ... Kirkus
08-31-11
Kirkus, yes that does sound like a pain. i've always been ... Atmasphere
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