WhiteTB Posted April 10, 2011 Report Share Posted April 10, 2011 good info here. Ive got 2 sa2500 starped at .5ohm for me is it square root of 5000x.5 and get 35.3? Would I use the positive from master amp and pos from slave amp with the dmm (the negatives are wired together between both amps)or can I just use the pos and neg from the master? Team DOA Team gg Link to comment Share on other sites More sharing options...
JZeFF Posted April 19, 2011 Report Share Posted April 19, 2011 good info here. Ive got 2 sa2500 starped at .5ohm for me is it square root of 5000x.5 and get 35.3? Would I use the positive from master amp and pos from slave amp with the dmm (the negatives are wired together between both amps)or can I just use the pos and neg from the master? Wondering the same thing. I have 2 saz1500's strapped at 2 ohms... No clue where to put the probes from the DMM. Pioneer x930 bt Rockford t2500 bdcp 18" nightshade v1 DC audio 175.4 RF power T162s up front, infinity 3 way 6x9's in the back (removing rear stage and re-doing doors soon) 3x XS power D2700's Knukonceptz 0awg all around Link to comment Share on other sites More sharing options...
ktraughb Posted July 10, 2011 Report Share Posted July 10, 2011 You put the probes of the meter on the ends of the speaker wires from the outputs of the amp. If strapped, then the pos and neg you are using as outputs. Of course this without the speakers hooked up, just open end speaker wires. Link to comment Share on other sites More sharing options...
ktraughb Posted July 10, 2011 Report Share Posted July 10, 2011 You put the probes of the meter on the ends of the speaker wires from the outputs of the amp. If strapped, then the pos and neg you are using as outputs. Of course this without the speakers hooked up, just open end speaker wires. Link to comment Share on other sites More sharing options...
Deadly hertzz Posted May 2, 2012 Report Share Posted May 2, 2012 I adjusted my gain using a chart from a Formula and used a volt meter and I was Wondering if i installed a line driver if I would have to re adjust my amps gain again 8 sundown sa 12s walledSaz3000 at .5HO altAll ofc Sky high wireAlpine componentsRockford power mids Link to comment Share on other sites More sharing options...
252chevyboyz Posted June 20, 2012 Report Share Posted June 20, 2012 I have a couple of questions on my amp. It is a Planet Audio BB1250.1. It is running 2 Treo SSi 12" dual 4's and is wired to 1 ohm. First, I was adjusting the gain today by ear and it has the gain setting but also has a input sensitivity switch and you can select either 100mV-2V or 2V-8V. When I switch it to the 2V-8V setting and adjust the gain, there is no difference in output. The subs are playing but very low. Now if I switch it back to 100mV-2V, the gain setting actually changes output. Anyone have any ideas on why there is no difference throughout the 2V-8V setting. The deck is a Alpine 9813. Eq for lower frequencies are either flat or - (which that setting is not being changed during the process) and subwoofer level control at 12 also did not change. If I understand correctly, the subwoofer level control acts as an control for the level output. I have read that the deck puts out 4V with subwoofer level control at 15 but will be less at a lesser setting. Second, the amp came with a birth sheet that has it at 1251@1 ohm. I don't want to dig the birth sheet up but I believe that the rating was with 12.x or 13.x v of power. The voltage readout that I have at the amp never really goes below 14.0V. Would the rated power be increased, even by a little, with the higher voltage rating or is it the same from 12-14.4V like some amps? Thanks in advance. What's up y'all I got the same question as the member above. The input switch when set on 2-8v makes the subs very quite and have no movement. When I set the amp on .1-2v the gain actually makes the subs hit and has a fair bit of adjustment to the amount of output power. Wondering why this is. I am running a soundstream rub2500.1d @ 1ohm. I just don't want the gains set to "strong" and mess the amp up or make it over heat. HU: Bass: 0 Mid:+2 Treb: +3 Subwoofer level: 6/6 Preout voltage: 5v - 1997 Chevy Tahoe- Big 3 (1/0)- Dual Autocraft Batts- JVC KD-A315 HU- AQ 2200.1D- 18" AQ HDC3- Box w/ Removable Port (6ft^3 @ 36hz & 6.7ft^3 @ 42hz)- 39' 1/0 & 13' 2/0 Flex-A-Prene My Selling Feedback Build Log Link to comment Share on other sites More sharing options...
ZachG Posted August 15, 2012 Report Share Posted August 15, 2012 How do I find out the voltage thing for my 2011 zx1500.1. I don't see it in the manual anywhere. The one the no video says to get 1998 Pontiac grand prix gtp supercharged2 12" Obsidain Audio V.1 on a 2011 zx1500.1 at 2 ohms. 20ft of Knuconceptz CCA 0 Guage. 2nd Battery is a Shurken BT-120. Box is 3.5cu tuned at 31.8hz sealed off from the trunk. 14sqft of Dynamat on the Rear deck top & bottom. Soon to be more for doors/roof. Gets low & loud Did a 140.5 Sealed at Battle of the boom in June 2013 dropping to 12.7v (need a alt mines going bad) Link to comment Share on other sites More sharing options...
Recommended Posts
Archived
This topic is now archived and is closed to further replies.