m.a.r.c.o Posted March 27 Posted March 27 Greetings all I have a pair of audio line isolation transformer 600:1400 with both XLR and RCA in and out I would like to have it re wired but I am not hands on Wondering anyone would be able to advise a reputable service provider in Melbourne whom can help me out please? Cheers to all in advance Marco
SonicArt Posted March 28 Posted March 28 shoot me a message Marco, is it operating OK and you just want to upgrade the wiring? you can go to the contact page at www.sonicartaudio.com and shoot me some details, I have a few choices in wire
m.a.r.c.o Posted March 28 Author Posted March 28 Thanks so much andyr for your referral and Mark from SonicArt getting back I shall go to your site and email you some details Cheers to both Marco 1
SonicArt Posted April 3 Posted April 3 (edited) So Marco sent the Audiowave transformer across and I opened it up this morning. I had a couple of pics already of the inside, so here is a little peak into how its put together: Doesnt appear to be all that old from the dates on the transformers, 5yrs or so, but the rca connectors are corroding badly, and the wiring is interesting to say the least Marco had already spoken about the connectors, suggesting replacing them all with some Cardas ones, ok not the cheapest option out there but nice copper silver rhodium plated connectors would not detract from the performance... Now it wasnt just a rewiring job, the right channel was lower in output to the left, I hooked it up and experienced this for myself, definitely an imbalance there! So I went about measuring things, low and behold the right channels cold tap was shorting to earth... Hot was measuring correct impedance to the centre tap, cold was measuring as a short to the centre tap. Unsolder the wiring from the transformer and measure it, still shorted, but the transformer now measures the same impedance from both terminals to the centre tap. At least we know the transformer appears ok! Removed wires completely and measured them, the shield was shorting to the neg wire somewhere inside, as the wire was pretty rough I guess just a matter of time before the short showed up. So starting on one channel, wiring was removed, sockets removed, and some shiny new ones installed Sucked the old solder off all the Tx terminals and then made up two sets of wiring loom to rewire things more neatly. I used some of my SilverLine cable, well suited to this sort of job being shielded, and very high MilSpec quality. And yes I did make notes of the wiring before pulling it all out Stripped the other side and fitted the new sockets, wired them up the same. Plugged it in using XLR in and out, working perfectly again! Hopefully the owner will notice improvements once its all burnt in, the Teflon does take some time but its worth it. Edited April 3 by SonicArt 6
bob_m_54 Posted April 3 Posted April 3 14 hours ago, Batty said: Original soldering looks , well, eek. Nice job you have done. Definitely in the SH-1-TE class of soldering.. 1
m.a.r.c.o Posted April 13 Author Posted April 13 (edited) Finally have the transformer hooked up. Working perfectly with no sound output imbalanced like how it was. Sounds fantastic. As you all can see from the photos the craftsmanship is top notch. Big thank you andyr for the referral and Mark @SonicArt for the great job done. By the way the speed of the service was prompt. Mailed off the transformer to Mark on Tuesday, arrived Wednesday and I got it back on Friday. Edited April 13 by m.a.r.c.o 3
SonicArt Posted Thursday at 07:11 AM Posted Thursday at 07:11 AM Thanks for updating us Marco, glad it worked out, it did sound good when I was testing it, its a nice solid unit too. 2
Recommended Posts