angelectrico Posted April 5, 2016 Share Posted April 5, 2016 Well I wanted to try my Firehawk with a regular amp, a Vox AC30vr and a Marshall combo to test how it sounds with the Amp simulations and cabinets off and use the Firehawk just as a regular multi fx pedal just for effects and overdrives, and the problem is that in Amp Output Mode I get a really noticeable hiss noise that I can´t get rid off, I turned off all the effects and still there is to much noise. With the Line Output mode I have no problem with noise, but it does´t sound good with a regular amp, so the question would be is this normal? Or there is something wrong with my unit??? Someone has tested Amp Output Mode and noticed any hiss noise? Not even a little? Should I send my unit to warranty service? Quote Link to comment Share on other sites More sharing options...
gimmickmusik Posted April 6, 2016 Share Posted April 6, 2016 I would send it in under warrenty. My unit does not behave this way in the slightest. Quote Link to comment Share on other sites More sharing options...
angelectrico Posted April 8, 2016 Author Share Posted April 8, 2016 Ok thanks, I´ve been testing and it´s not noticeable when I´m playing, especially in a rehearsal with all the band, but once I stop playing there it is, that noticeable hiss noise, and if I use it in Line Out Mode it´s completely quiet. gimmickmusik or anyone: hope you can help me with two questions: 1. Have you noticed that if you change the output mode from Line to Amp the volume gets lower? Is that normal? I had a POD 500X before and I don´t remember any difference, but maybe I´m wrong. 2. When I use Amp Output Mode headphones stop working, they only work in Line Output Mode. Is that normal too? Quote Link to comment Share on other sites More sharing options...
suedehead99 Posted April 8, 2016 Share Posted April 8, 2016 angelectrico, in response to your last post: 1. Yes, line mode has a higher output level. The amp level output is much lower. Obviously use amp mode for driving an amp and line level for any thing with line in socket. 2. It's normal. If you have an amp output then why do you need headphones? It's more a rhetorical question than one requiring an answer. If you are running to an amp then what you hear in the headphones will be different to what you get out of the amp as there is the amp's pre-amp, tone stage, power amp and cabinet/speaker to colour the sound. Perhaps plug the headphones into your amp's headphone socket. However, if using XLR output then according to the manual you should get the same sound through the phones as you get through the XLR. As to your original post, it sounds like a grounding issue. When you touch the guitar, strings, you effectively act as the ground conduit. It suggests a grounding problem with your guitar or cable. Ah, you've said it doesn't happen using line level output. What is your set-up? What sockets are you using? ie XLR? 1/4" mono, 1/4" stereo? Quote Link to comment Share on other sites More sharing options...
suedehead99 Posted April 8, 2016 Share Posted April 8, 2016 Also, if the hum is when you use XLR, have you tried the ground lift button? Quote Link to comment Share on other sites More sharing options...
angelectrico Posted April 8, 2016 Author Share Posted April 8, 2016 suedehead thanks for the answer, and yes, both last questions are maybe obvious, I just wanted to check, just to be sure my unit wasn´t damage, even if answers where obvious, but the thing that is not clear to me yet is the hiss noise, as I´m using a normal guitar combo amps I use the plug 1/4 output to go into amp, the hiss noise is there even when I´m touching the strings, so it´s has nothing to do with that, what I meant was that the hiss noise it´s not loud enough to ear it when I´m playing, but once I stop, even when touching the strings, the hiss it´s really noticeable. It sounds like if I had a really high gain amp or distortion sound active, and with a compressor making the noise even more noticeable, and without a gate keeping the noise out, but the thing is that I turn off the amp, and all pedals, even reverbs, delays and modulations, having only the sound of the guitar going thru the Firehawk completely clean, and the hiss sound it´s still there. Turn any effect on or off doesn´t seem to affect that hiss noise at all, moving settings in any function of the Firehawk doesn´t change anything either, the hiss sounds remains the same volume and intensity, and if I press the button to change to Line Output Mode, instantly gets completely quiet. Maybe it´s not a major issue, and I could live with that, it´s just a little annoying, and I just want to be sure if there´s anything wrong with my unit Quote Link to comment Share on other sites More sharing options...
emmebbi Posted April 11, 2016 Share Posted April 11, 2016 Hi, I have the same problem, but only at home. When I play in some other places there is no hiss, the effects are very quite. It is due to electrical interferences. Try to use something to clean electricity. Quote Link to comment Share on other sites More sharing options...
djdavedawson Posted January 7, 2017 Share Posted January 7, 2017 I'm having the same issue with hiss in amp mode. Angelectrico, did you ever get the hiss resolved? Quote Link to comment Share on other sites More sharing options...
kinglerxt Posted January 10, 2017 Share Posted January 10, 2017 Are you going straight in with 1 cable to the amp or using the 4 cable method to put the Firehawk into the Amps EFX Loop as that is the best method stated by most folks here to not get muddy or colored sound. Quote Link to comment Share on other sites More sharing options...
suedehead99 Posted January 12, 2017 Share Posted January 12, 2017 If none of the above has worked, perhaps see whether you've got the noise gate on and see if that helps. Quote Link to comment Share on other sites More sharing options...
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