March 16, 2006

ART T8 Noise

I've been trying to get rid of the last bit of buzz and hum in my system, which seems to be due to some sort of strange electrical circuit behavior between the DMC-1 and MPS-1. Only when the two are interconnected in a particular way does the MPS-1 output noise on specific channels. I found that inserting a Hosa GLT-255 into the amplifier input removed the noise contributed by that channel. So I decided to purchase an ART T8 under the assumption that would work even better with full isolation. Unfortunately, the results were horrible.

Inserting the T8 between the DMC-1 and MPS-1 resulted in immediate noise at least 30dB higher than the previous noise. I tried this with just one channel connected between the DMC-1 and MPS-1 as well, and the noise was still there. Without the T8, a single channel connection results in no noise. I can't figure out how the T8 can possibly introduce noise like this, as it is a passive device containing some transformers and is supposed to eliminate noise due to ground loops and completely isolate the source and destination devices.

Anyway, I've sent the T8 and the 8-channel XLR snake back for a refund, and instead ordered seven more GLT-255's, which actually seem to work and cost much less as well.

Posted by josuah at March 16, 2006 6:05 AM UTC+00:00

Trackback Pings

TrackBack URL for this entry:


Post a comment

July 2013
Sun Mon Tue Wed Thu Fri Sat
  1 2 3 4 5 6
7 8 9 10 11 12 13
14 15 16 17 18 19 20
21 22 23 24 25 26 27
28 29 30 31