rumproast789 Posted October 22, 2009 Report Share Posted October 22, 2009 Here are the results Freq---------ACvolts--------ACamps--------Ohms----------Watts 24------------62--------------21.7------------2.857------------1345 33------------68.8------------23.1------------2.978------------1589 38------------64.9------------17.7------------3.66666----------1148.7 40------------62--------------19.7------------3.147------------1221.5 45------------54.4------------17.4------------3.126------------946.7 50------------57.5------------23.2------------2.478------------1334.2 55------------53--------------27.1------------1.9557-----------1436.3 60------------52.2------------29.2------------1.78767----------1524 65------------47.2------------26.6------------1.7744-----------1255.55 70------------39.9------------24.8------------1.60887----------989.5 75------------42.5------------23.2------------1.831896---------986 80------------42.1------------21.8------------1.9312-----------917.78 Now I'm on a btl 18" fully loaded I think in an 8^3 box tuned to 33hz. It is supposed to be dual 2 ohm, wired to one ohm. I will be pulling out the sub tommorow to check the leads. I can't remember what they said before but I have a feeling its wired to 2 ohms which makes me sad. I'll get to the bottom of this. Anyone know what my problem is? maybe I did it wrong, or maybe its wired to 2 ohms. LMK, otherwise those are the ratings I got from the amp. All on a stock headunit btw. 2002 ford explorer 200 amp rewound alt single 18" Fi btl fully loaded 2 1750's 2 c&d tech 88amp/hr batts 2 ought wiring cdt component set up front, cdt coaxials in back Kenwood eXcelon KDC-X693 Link to comment Share on other sites More sharing options...
Boon Posted October 23, 2009 Report Share Posted October 23, 2009 AC volts is pretty much on the money. Ohms... are to be expected. Even with a D2 that's well within acceptable range for impedance rise. The way your voltage dives I'm pretty damn sure you have your low-pass filter set to something silly, approximately 60hz by the look of it. EDIT: 1589w @ almost 3 ohms is pretty damn respectable man. 10.x volts fo' life! Link to comment Share on other sites More sharing options...
-Hobby- Posted October 23, 2009 Report Share Posted October 23, 2009 AC volts is pretty much on the money. Ohms... are to be expected. Even with a D2 that's well within acceptable range for impedance rise.The way your voltage dives I'm pretty damn sure you have your low-pass filter set to something silly, approximately 60hz by the look of it. EDIT: 1589w @ almost 3 ohms is pretty damn respectable man. What would the optimal setting be. Im setting the gains on mine tomorrow and want to get the rest of the settings as correct as possible. I have my bass boost at 0 and my LPF at around 80-100hz. My gains are at about 50% and have no distortion at full volume. Subsonic is around 20hz. Link to comment Share on other sites More sharing options...
kentb Posted October 23, 2009 Report Share Posted October 23, 2009 wire it to .5 ohms and see a HUGE difference. New System 2 10" Fi SSD, Sundown 1500d Build I build and design enclosures(cheap price), PM ME Kicker L7 Navigator(plexiglass, fiberglass, aeroport) Build BTL 18" Escalade(plexiglass, battery tray) Build http://www.kentbaudio.com Old System Link to comment Share on other sites More sharing options...
rumproast789 Posted October 23, 2009 Author Report Share Posted October 23, 2009 Im pulling hte sub out tommorow guys and checking impedance and changing speaker wire. And yeah your right about hte 1500 at 3 ohms. I messed with my lpf and i had it at like 80hz but i think i might have changed to about 60 hz or so. Turn it up past 80? any reccomendations? I have it at about 57 ac volts on the gain, and used the bass boost to make it about 58 ac volts. bass boost made a pretty decent amount of difference. I know everyone says to not use it, but it really seems to make it a LOT louder...? subsonic i think is around 24 hz or so? 2002 ford explorer 200 amp rewound alt single 18" Fi btl fully loaded 2 1750's 2 c&d tech 88amp/hr batts 2 ought wiring cdt component set up front, cdt coaxials in back Kenwood eXcelon KDC-X693 Link to comment Share on other sites More sharing options...
Boon Posted October 23, 2009 Report Share Posted October 23, 2009 LPF around 80, Subsonic bang on your tuning frequency, gain and bass boost... umm... do you use the remote knob with it? 10.x volts fo' life! Link to comment Share on other sites More sharing options...
Marlo Stanfield Posted October 23, 2009 Report Share Posted October 23, 2009 Was the car on or off during testing?? Also what was the voltage dropping to during the tests?? U shouldn't be worried my friend about a D2 woofer being wired to 2ohms, since it's impossible. You're seeing the higher ohm loads because that is impedance rise. To Kent B - Please explain how the OP could wire to .5ohm with a D2 woofer?? lol 1998 Ford Explorer Eddie Bauer... New setup, old ride... QX56 is staying stock til I get loud... It's only getting walled off if I don't meet my goal @ SBN. Pioneer AVIC-N2 (12) 12" RE SXs old model.... (3) AB VFL 500.1 @ 1ohm each Dual 300amp Ohio Gen alts.... (10) Northstar NSB-125s 26ft3 @ 33hz w/ a ton of port area 156.5 @ 40hz @ dash, Db Drag style / 153.2 Bassrace Link to comment Share on other sites More sharing options...
rumproast789 Posted October 23, 2009 Author Report Share Posted October 23, 2009 He meant if it turned out to be a d1 ohm I think. And I know that it could be impedance rise, but I'm going to pull the sub out and see if i got dual1 ohms on accident. I know I ordered dual 2 ohm but maybe fi messed it up somehow. Or maybe one coil is hooked up or something. So change my subsonic to my tuning level. got it. Yes It is a remote gain, I have that turned all hte way up when setting the gain and other settings. Car was on during testing, I think dropping to about no less than 12v's 2002 ford explorer 200 amp rewound alt single 18" Fi btl fully loaded 2 1750's 2 c&d tech 88amp/hr batts 2 ought wiring cdt component set up front, cdt coaxials in back Kenwood eXcelon KDC-X693 Link to comment Share on other sites More sharing options...
andreg3000 Posted October 23, 2009 Report Share Posted October 23, 2009 Have you checked the ohm load of each coil? You don't necessarily need to take the sub out for that. Though it would be wise to visually check the sub. As far as tuning, just leave the remote gain unpluged. Also try checking your RCA voltage. If pre-amp voltage isn't the cause, then its either amp or sub. Also make sure you have a clean consistent input to your headunit (no Aux iPod plugs). Make sure your eq is flat and your playing a 0db test tone. Those amps are rated at >3400RMS at 1-ohm. That impedance is a bitch, if in fact that is your problem. Still, that amp is rated at >1900WRMS @ 14.4V so I don't suspect the amp to be the problem. Anyways, let us know what you find out. I just got my x2 3250v2's and have yet to hook them up. Link to comment Share on other sites More sharing options...
rumproast789 Posted October 26, 2009 Author Report Share Posted October 26, 2009 tested again put new speaker wire in straight run through the port. turned lpf all the way up, subsonic all the way down. Freq---------ACvolts--------ACamps------------Ohms------------Watts 24------------69.4------------27--------------2.57------------1874.07 50------------58.3------------25--------------2.332-----------1457.5 60------------54.2------------29.3------------1.8498----------1588 80------------45.1------------23.7------------1.9029----------1068.9 Only CD I had had these freq's on it. I didn't measure voltage again. 2002 ford explorer 200 amp rewound alt single 18" Fi btl fully loaded 2 1750's 2 c&d tech 88amp/hr batts 2 ought wiring cdt component set up front, cdt coaxials in back Kenwood eXcelon KDC-X693 Link to comment Share on other sites More sharing options...
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