Question:
I have one of these, and I plugged it directly into the PA at church, and there was a ton of hissing. Does anyone know how to reduce this? This might go in Recording and Live Sound, but I wasn't sure.
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Feedback is primarily due to your axe, not your amp. Don't play directly infront of a monitor, or if it still continues lower your volume nob until it stops and them compinsate with clean gain.
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This may or may not be possible, but on the RP100 there is a output and then an expression input. Make sure you didnt plug into the expression jack instead of the output.
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Originally Posted by RipVanWinkle This may or may not be possible, but on the RP100 there is a output and then an expression input. Make sure you didnt plug into the expression jack instead of the output.
My Digitech has the built in expression pedal.
Originally Posted by Drew Neal Feedback is primarily due to your axe, not your amp. Don't play directly infront of a monitor, or if it still continues lower your volume nob until it stops and them compinsate with clean gain.
Sorry, I used the wrong term, so I edited my post.
I resolved it by just playing through my amp, and it was fine. However, I would like to know if there is a way that I could plug it directly into the system without the hiss.
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could it have just been a bad cable or a bad ground in that input or something?
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I dunno. I was using the church's cable to plug in. I don't get that plugged into my amp with my cables. I should try using my cables next time.
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How does it sound with just headphones? Have you also tweaked your noisegate and amp levels? Are you running on batteries or an AC Adapter? Let us know the answers to these questions.
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Do you have the speaker simulator on? If it were off, that could cause a lot of hiss since the speaker sim dramatically cuts the high freq's above 5K hz or so (like a guitar amp speaker does) - that's where hiss is. Of course, when using it with a guitar amp whose speaker is cutting the high freqs above 5K, you'd want the speaker sim off....
You might also check the Rp's output level - it needs to be a lot higher for a mixing board input (line level) than for a guitar amp, whose input is set up for passive instrument level signals. That might help the signal to noise ratio.
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Originally Posted by Hopeful How does it sound with just headphones? Have you also tweaked your noisegate and amp levels? Are you running on batteries or an AC Adapter? Let us know the answers to these questions. It sounds fine with just headphones. I think I did tweak the amp level, but I didn't think to tweak the noise gate. I should try that.
Originally Posted by Major Tom Do you have the speaker simulator on? If it were off, that could cause a lot of hiss since the speaker sim dramatically cuts the high freq's above 5K hz or so (like a guitar amp speaker does) - that's where hiss is. Of course, when using it with a guitar amp whose speaker is cutting the high freqs above 5K, you'd want the speaker sim off....
You might also check the Rp's output level - it needs to be a lot higher for a mixing board input (line level) than for a guitar amp, whose input is set up for passive instrument level signals. That might help the signal to noise ratio. I don't remember, but I'm pretty sure the speaker sim was on.
I am not exactly sure what you're saying in the last paragraph. Could you explain it a bit more?
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I hate to ressurect this thread, but I've encountered this problem again, but in a slightly different form, I think. My RP80 has two outputs, a right and a left. I had the idea to plug directly into the system with one, and into my my amp with the other, using it as a monitor, since the house monitors don't cut it. When I did this, my amp had some really bad hiss problems. Normally this doesn't happens until I turn it to at least 1 o'clock or so, but it was hissing with the volume at 8 o'clock. I tried switching which output goes where, but it didn't help. Both outputs work fine with just the amp, and I think they both work with just the system. Any help?
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Hmm, does it happen when you're on a clean sound or a distorted one? It could be the PA system. I've used my RP80 before with my church's PA system and I've never gotten any problems. I always plugged my RP80 into my amp from the left output and into the PA system from the right output.