12 Aug
2013
12 Aug
'13
7:32 p.m.
On Aug 12, 2013 4:05 PM, "Rusty Perez" <rustys.lists(a)gmail.com> wrote:
Hi folks,
This is related to recording, and my recordings are made on linux, so,
it is tangential to all of these lists. :-)
I own an ART tube pac, which is a preamp compressor combo unit.
It is the first generation of this unit I believe. I've just started
using this unit.
Anyway, I'm hearing a low level hum, sortof like a grounding hum.
Does anyone else use the ART line of pres? Has anyone had trouble with
them?
The unit uses 2 tubes and I'm sure they aren't high quality tubes.
Could a lower quality tube cause a low level ground hum?
The unit has a grounded plug, and I can't seem to get rid of the hum
by unplugging other components, but when I mute the unit through my
sound card, the hum is decreased. The hum is audible in silences on
my tracks, so I know it's not just my playback system.
Just another easy to test idea - how about moving the unit and the
connectors around the room a bit? I get horrendous hum on my guitar amp if
it picks up rf interference. .. move away from fluorescent lights, dimmer
switches, monitors etc..
J