Members Zeromus-X Posted August 3, 2003 Members Share Posted August 3, 2003 Because my preamp (SansAmp RBI for bass) doesn't have a ground lift, I've been toying with different ideas on how to solve the ground hum problem at specific places we play. Instead of carrying two cables -- one lifted and one not -- I'd like to implement something into the interface panel on the back of the rack. Specifically, I'd like to have two male XLR panel-mount jacks on there -- one with the ground connected, the other with it disconnected. If I get to the show and plug into the normal one and get the ground noise, I can simply plug into the other. This is no problem, but the part I need to know about is this -- I've only got one XLR out on my preamp. What would I need to do to split that output to two different jacks? I mean, I'll be cutting the end off a 1' XLR cable and using that as the pigtail from the preamp to the interface panel in the back... but if I just put a lead off each wire to the other jack, am I going to lose some signal strength? Link to comment Share on other sites More sharing options...
Members scarecrowbob Posted August 3, 2003 Members Share Posted August 3, 2003 why not just put a switch on the ground? That ought to do the same thing, remove the possibility of pluggining into the wrong jack, and make A/Bing the ground lift easier. If you want to do the two jack solution, you could just wire one jack like normal, wire the other jack to the non-ground pins; there shouldn't be any signal loss unless you plug into both jacks. john reeve Link to comment Share on other sites More sharing options...
Members Zeromus-X Posted August 3, 2003 Author Members Share Posted August 3, 2003 I didn't think there would be, but I wanted to make sure I wasn't instigating any ground loop situations with the interface panel itself or something!! Link to comment Share on other sites More sharing options...
Members ashivraj Posted August 3, 2003 Members Share Posted August 3, 2003 some other ideas: - a short jumper, with pin 1 disconnected at one end (audiopile) - a barrel adapter, pin 1 lifted (agedhorse) - earplugs to pretend the buzz doesnt exist AS Link to comment Share on other sites More sharing options...
Members agedhorse Posted August 3, 2003 Members Share Posted August 3, 2003 Link to comment Share on other sites More sharing options...
Members Zeromus-X Posted August 4, 2003 Author Members Share Posted August 4, 2003 Originally posted by ashivraj - a short jumper, with pin 1 disconnected at one end (audiopile) ...because I'll lose the jumper cable, Originally posted by ashivraj - a barrel adapter, pin 1 lifted (agedhorse) ...because I'll lose the barrel adapter, Originally posted by ashivraj - earplugs to pretend the buzz doesnt exist ...and because I'll lose the earplugs!! This way I've got nothing to bring except my XLR cable, which I always have in the rack in case I'm further from the snake than the soundguy expects. I'm probably gonna start to not even worry about bringing that, because I can't remember the last time I needed an XLR cable and the soundguy didn't have one. Of course, that'll happen the day I don't bring it. Link to comment Share on other sites More sharing options...
Members ashivraj Posted August 4, 2003 Members Share Posted August 4, 2003 how about two of each? sorry. too early in the morning for me. AS Link to comment Share on other sites More sharing options...
Members kevinnemrava Posted August 6, 2003 Members Share Posted August 6, 2003 buy a better DI with a ground lift, ... it will sound better too. Link to comment Share on other sites More sharing options...
Members Zeromus-X Posted August 7, 2003 Author Members Share Posted August 7, 2003 I doubt that. For playing bass, you'd be hard pressed to find a better DI than the SansAmp... it's a shame they didn't put a ground lift on their rack unit version. I'll never understand that one. Maybe they forgot it, who knows. I emailed them about it and they said to bring a cable with the ground pin cut. When you spend $300 on the rack unit instead of $150 for the pedal, it should have MORE features, not LESS! Anyway... Link to comment Share on other sites More sharing options...
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