Boomerweps wrote on Thu, 18 August 2005 14:21 |
Don't know about the Whirlwind cheapee but the B active DI-100 is real good at picking up EMF from setting on amp heads. They work, just no shielding so placement is important. Mike McNany |
LJP wrote on Thu, 18 August 2005 12:55 | ||
The unbalanced input side of ANY D.I. is fair game. Even though an expensive DI may be shielded better internally, it ain't no match for that little section of unbalanced guitar cord picking up the buzz. |
Andy Peters wrote on Thu, 18 August 2005 17:43 |
The noise -- in this case, hum, not an RF buzz -- is caused by the amp's power and/or speaker-output transformers magnetically coupling with the transformer in the direct box. It has nothing to do with the unbalanced cable connection. -a |
LJP wrote on Thu, 18 August 2005 16:21 | ||
My point was that a short section of unbalanced cord running through a transformer field, on its way to the DI, would not help the fact that the DI had a shielded transformer. |
Andy Peters wrote on Fri, 19 August 2005 00:52 |
Unless the guitar cable was wrapped in a VERY tight coil with a very small diameter and a lot of turns, you won't get any magentic coupling between it and the amp's transformers. -a |