rockFord_Expedition Posted April 1, 2015 Report Share Posted April 1, 2015 adjust (turn down) the sub level on the headunit to match the output of the front amp so they are both around the same volume So instead of one part sounding like ass, make them both match? He needs to find someone or get an o-scope or DD-1 and find his max clean output. You start that process with your sub out turned all the way up and back it down as necessary. Old School/New School RF Build March 2015 SOTM Winner How to crimp large wire Link to comment Share on other sites More sharing options...
cyph3r Posted April 1, 2015 Author Report Share Posted April 1, 2015 The headunit clips at 38/50. I work at a manufacturing company that makes radio broadcasting equipment. I borrowed an old school oscillator scope, not a portable one. But the guy that uses it there to set up the broadcast consoles helped plug it up and everything. As reading online it said to set it just below clipping. I just gave it just a little extra space since I tend to have music that varies in volume quite a bit. and side show if i turn down the sub level, I hardly have any voltage on the speaker out and the subs act like they're not even on. So matching volume to the front would just be no bass with hardly any highs at max volume. Lol. Link to comment Share on other sites More sharing options...
cyph3r Posted April 1, 2015 Author Report Share Posted April 1, 2015 the 2 ch amp is an older sony xplod 180 rms per channel is pushes the subs just fine with sub level turned up. The mono amp is hifonics brz 1200 Link to comment Share on other sites More sharing options...
MrSkippyJ Posted April 1, 2015 Report Share Posted April 1, 2015 what headunit? also, did you test the output of the front AND sub? F150: Stock 2019 Harley Road Glide: Amp: TM400Xad - 4 channel 400 watt Processor: DSR1 Fairing (Front) 6.5s -MMats PA601cx Lid (Rear) 6x9s - TMS69 Link to comment Share on other sites More sharing options...
cyph3r Posted April 1, 2015 Author Report Share Posted April 1, 2015 headunit is sony cdx-gt34w and you mean test with oscope? no only did the headunit, i just set the gain on the amp with dmm and under set it by a few volts Link to comment Share on other sites More sharing options...
rockFord_Expedition Posted April 1, 2015 Report Share Posted April 1, 2015 Did you set your rear output to full range instead of sub, and plug it into the front input to see what happens? Old School/New School RF Build March 2015 SOTM Winner How to crimp large wire Link to comment Share on other sites More sharing options...
Jeremie Dufresne Posted April 1, 2015 Report Share Posted April 1, 2015 I had the same problem, I had a really nice alpine navigation deck I paid 1000 for a few years ago and didn't realize it was only 2v out. It still worked but not as loud or clear as some higher voltage decks I had. I would get an epicenter, or a new deck if I were you. Link to comment Share on other sites More sharing options...
cyph3r Posted April 1, 2015 Author Report Share Posted April 1, 2015 I haven't tried that. Didn't think it would make a difference. I can possibly try that tomorrow. Link to comment Share on other sites More sharing options...
MrSkippyJ Posted April 1, 2015 Report Share Posted April 1, 2015 You need to test the output of your headunit, both front AND sub outputs. F150: Stock 2019 Harley Road Glide: Amp: TM400Xad - 4 channel 400 watt Processor: DSR1 Fairing (Front) 6.5s -MMats PA601cx Lid (Rear) 6x9s - TMS69 Link to comment Share on other sites More sharing options...
MrSkippyJ Posted April 1, 2015 Report Share Posted April 1, 2015 I had the same problem, I had a really nice alpine navigation deck I paid 1000 for a few years ago and didn't realize it was only 2v out. It still worked but not as loud or clear as some higher voltage decks I had. I would get an epicenter, or a new deck if I were you. 2volts is PLENTY for OPs application. There is zero reason to worry about more output voltage. Unless the deck is complete shit, in which case it's still not a voltage issue. F150: Stock 2019 Harley Road Glide: Amp: TM400Xad - 4 channel 400 watt Processor: DSR1 Fairing (Front) 6.5s -MMats PA601cx Lid (Rear) 6x9s - TMS69 Link to comment Share on other sites More sharing options...
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