2. amps-preamps
  3. 188058-182267

XLR to RCA conversion

I am using a balanced preamp (Atma-Sphere) with a single ended power amp (Primaluna).
It has a ground loop hum that I can’t seem to get rid of.  I am told a transformer will probably work.  Can anybody recommend an XLR to RCA transformer that will work?  Brand, model, and who sells it?

Thanks in advance!!

hifinut51
jackd
1,043 posts
 

Did you try lifting the ground on either unit with a cheater plug first to see if that eliminated the hum?  Not a permanent solution but a test point.  For XLR to SE conversion units look first to Jensen before car audio products.  Also reach out to Ralph and see what he recommends.  

hifinut51 OP
22 posts
 

@jackd yes, I am communication with Ralph.  He recommended lots of ideas which I tried.  His most recent suggestion is a Jensen transformer, but the specific model he recommended isn’t available.  That’s why I posted.

He recommended the Jensen PI-2XR.

I am wondering if the PC-2XR will work.

soix
8,939 posts
 

Maybe a longer-term solution, it seems a bit of a shame you’re running a fully-balanced preamp into a single-ended amp.  If I’m you I’d be saving up for a good fully-balanced amp from the likes of Atmasphere, ARC, VAC, etc.  Just my $0.02 FWIW.

jackd
1,043 posts
 

@hifinut51 

 

If you're talking about this model then it looks to be the exact same thing and PE has them in stock.

 

 

imhififan's avatar
imhififan
2,141 posts
 

I am wondering if the PC-2XR will work.

I think it should work and if you order from PE it comes with a 60 day no hassle return policy.

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