purebasshavoc Posted May 20, 2014 Report Share Posted May 20, 2014 Hi, I hope I am posting this in the correct section of the forum. I recently acquired a second subwoofer. My amp (Pioneer GM3500T) is a 2 channel with the option to bridge. originally I had 1 sub running off each of the channels at 4 OHMs (what the amp is rated for). I then decided that the results werent too good so I tried wiring them in parallel. As both the subs are 4 ohm the load should be 2ohm I cannot find anywhere on the pioneer website about this amp being wired at 2 ohms. I was testing it and it seemed fine plus the subs were ALOT louder. It also didnt seem to get too hot at all. So my question is: Is it ok to have the amp at 2ohms? NOTE THE SYSTEM IS IN MY ROOM System: 1 x Pioneer TSWX 303 in seperate box (4 ohm SVC, about 1 year old) 1 x Pioneer TSW 300r in seperate box (4 ohm SVC, dont know age but i know it is much older than other sub) 1 x Pioneer GM3500t [2x 200W (4 Ω) or 1 x 400W (bridged) (4Ω), I have it wired at 2Ω BRIDGED without problem) 1 x 500 watt PSU which gives about 390 watts 12v Voltage at any ohm level is 12.4 without playing and 12.05 at higher than listening volume. Current system (NO CAR FFS):1 x Pioneer TSWX3031 x Pioneer TSW300r1 x Pioneer GM3500t @ 1ohm (NOT RATED FOR THAT LOAD)Subscribe to me on YouTube: youtube.com/user/purebasshavoc I DO BASS BOOSTS THAT AREN'T DISTORTED AS HELL Link to comment Share on other sites More sharing options...
harlemn8ive Posted May 20, 2014 Report Share Posted May 20, 2014 I looked at the website it is rated at 85 w per channel at 2 ohms. but because you have it bridged basically each channel is getting 1 ohm each which the amp isn't rated for which technically is not good for the amp. while it will work it is probably doing more harm than help. I am a noob still myself but I would definitely consider getting a larger amp if you aren't satisfied with the power it is putting out Check out my build slow but... slow and steady wins the race http://www.stevemeadedesigns.com/board/topic/185561-1st-build-budget-toyota-mark-2/ Link to comment Share on other sites More sharing options...
purebasshavoc Posted May 21, 2014 Author Report Share Posted May 21, 2014 I looked at the website it is rated at 85 w per channel at 2 ohms. but because you have it bridged basically each channel is getting 1 ohm each which the amp isn't rated for which technically is not good for the amp. while it will work it is probably doing more harm than help. I am a noob still myself but I would definitely consider getting a larger amp if you aren't satisfied with the power it is putting out Hi, I am not fully understanding the concept of the impedance. When I read the load at the end of the wires which go to the amp my multimeter gives me a reading of ~2.9 ohms. I followed a tutorial on youtube and they had it at 2 ohms, I followed every step. Also even when the wires are in the amp terminals the ohm load is ~2.9 ohms not 1 ohm. So if what your saying is correct should I just wire the subs to 1 channel each or Bridge and then wire in series rather than parallel. 60W × 2 (a 14,4V, 4 OHMS) 185W × 1 (a 14,4V, 4 OHMS) 85W × 2 (a 14,4V, 2 OHMS) PS. I just read what I said through and it sounded really rude, I did not mean in any way to undermine your knowledge. My apologies. Current system (NO CAR FFS):1 x Pioneer TSWX3031 x Pioneer TSW300r1 x Pioneer GM3500t @ 1ohm (NOT RATED FOR THAT LOAD)Subscribe to me on YouTube: youtube.com/user/purebasshavoc I DO BASS BOOSTS THAT AREN'T DISTORTED AS HELL Link to comment Share on other sites More sharing options...
SIDE SHOW Posted May 21, 2014 Report Share Posted May 21, 2014 i wouldn't suggest wiring the subs together at all, they are different subs and the weakest sub will die in time. Link to comment Share on other sites More sharing options...
purebasshavoc Posted May 21, 2014 Author Report Share Posted May 21, 2014 i wouldn't suggest wiring the subs together at all, they are different subs and the weakest sub will die in time. I dont mind if the weakest sub dies because one it isnt too good and two I got it for free. Current system (NO CAR FFS):1 x Pioneer TSWX3031 x Pioneer TSW300r1 x Pioneer GM3500t @ 1ohm (NOT RATED FOR THAT LOAD)Subscribe to me on YouTube: youtube.com/user/purebasshavoc I DO BASS BOOSTS THAT AREN'T DISTORTED AS HELL Link to comment Share on other sites More sharing options...
SIDE SHOW Posted May 21, 2014 Report Share Posted May 21, 2014 let us no how you go with that.... hope your amp doesn't die too. Link to comment Share on other sites More sharing options...
Stephen13 Posted May 25, 2014 Report Share Posted May 25, 2014 Just a little FYI here... You cannot accurately measure impedance (Z) with a multimeter. A multimeter can measure resistance which is a DC measurement. Z is the AC equivalent of resistance but it varies with frequency. A simple DMM cannot take frequency into account when taking a measurement. 2011 Chevy Silverado LT 5.3L 4x4 Ext.-cab "Enjoy yourself. It's later than you think." Link to comment Share on other sites More sharing options...
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