khinds94 Posted March 14, 2015 Author Report Posted March 14, 2015 I have only one RCA connecting to the amp which Im going to fix... I have had a broken RCA for a while now. I scoped the one I have connected and its a clean signal... even if its only 1.5 volts. Its been like that for a while now.... Maybe it is screwing with the amp. 03 Sable LS AA mayhem 12" D2 Sundown ZV4 12" D1 Tantric HD 12" D2 Tantric SHD 12" D1 Sundown X12 V2 D2 2.5 cu net Sundown 2000d @ 1 ohm XS Power XP2000 Sky High Sound Deadener Sky High wire Stock alt
ChevyBoy95 Posted March 14, 2015 Report Posted March 14, 2015 wire lower done wire to .35 or what ever... Lol man I only have one sub I cant wire to .35. I get the point about how they should read lower which I figured is usually the case... but they still read 2.3-2.4. how are you wired at one ohm if you have dual 2.4 coils ? Do they make dual 2.4's ? im a lil lost? "Checked coils on sub (read 2.4ohm each)" It reads more like 1.3 ohm at the terminals. i said 1 ohm earlier i meant 1.3... They are dual 2 ohm subs with a DCR of 2.4 I should have been more specific weird... to me, a dual 2 would read 1.4 dcr per coil........... dual one would read .7 per coil.... DCR should read LOWER .. not higher That is only with Fi, Crossfire, AA etc. type subs mainly. DC, Sundown, blah blah blah, and so on all read right at or .1-.2 over. I understand Thomas. But, how is he seeing a 2.4 coil on this sundown sub? So if it is a dual 2, and hes wired at 1 ohm... why would his voltage drop ? Ill bet with his mayhem, he was making more power... ill bet it was a was a dual one,... at .7 dcr, and he was acutally at .35dcr know what i mean? I understand completely.... and who is thomas... lol. OP, I would check RCA connection to make sure they are tight. Im my truck, along with other teammates have seen similar stuff with no power output and ended up being a loose RCA. my bad... wrong name.... lol also,... the voltage at 32v seems odd to.... i agree lol, it is Travis. Best Score to Date : 160.5 dB Outlaw (47Hz)[4 XM 15's & 2 Taramps Bass 12k's] BL : http://www.stevemeadedesigns.com/board/topic/147800-chevyboy95s-4-15s-7krms-wall-1533-db-on-half-power/YouTube: http://www.youtube.com/hitemwiththeflex/
SnowDrifter Posted March 14, 2015 Report Posted March 14, 2015 Where are you reading voltage from? What's your AC voltage on the output of your amp if you play a 40hz tone full volume?I didnt get numbers for the AC output but I can tomorrow. I didnt see anything out of the ordinary when I checked earlier however. Need solid numbers to work with. Voltage at the amp being DMM on the set screws at the amp for your power wire For the AC voltage output I get 32 volts at full tilt on a 30 hz test tone.... which seems low. What amp? By that math the gain is set to put out in the 1000w neighborhood. Might need to turn your gain up more ~~~~~~~~SAY NO TO PHOTOBUCKET~~~~~~~~ Snow's DD-1 tracks here: https://www.stevemeadedesigns.com/board/topic/167433-snows-dd-1-tracks/ My take on OFC vs CCA: https://www.stevemeadedesigns.com/board/topic/110381-things-that-piss-you-off-in-the-car-audio-world/?do=findComment&comment=2461444
khinds94 Posted March 14, 2015 Author Report Posted March 14, 2015 Where are you reading voltage from? What's your AC voltage on the output of your amp if you play a 40hz tone full volume?I didnt get numbers for the AC output but I can tomorrow. I didnt see anything out of the ordinary when I checked earlier however.Need solid numbers to work with. Voltage at the amp being DMM on the set screws at the amp for your power wire For the AC voltage output I get 32 volts at full tilt on a 30 hz test tone.... which seems low.What amp? By that math the gain is set to put out in the 1000w neighborhood. Might need to turn your gain up more Sundown 2000d. I'll try turning up the gain a bit... it's at like 4/9 right now so right under half. 03 Sable LS AA mayhem 12" D2 Sundown ZV4 12" D1 Tantric HD 12" D2 Tantric SHD 12" D1 Sundown X12 V2 D2 2.5 cu net Sundown 2000d @ 1 ohm XS Power XP2000 Sky High Sound Deadener Sky High wire Stock alt
SnowDrifter Posted March 14, 2015 Report Posted March 14, 2015 You have an oscope right? Crank that sucker. There's a link in my sig to some test tones you can use too. Try the -7.5 or -5db 40hz track. -5db will be safer, but you aren't running that much power to the mayhem so if you are adventurous, try the -7.5 track ~~~~~~~~SAY NO TO PHOTOBUCKET~~~~~~~~ Snow's DD-1 tracks here: https://www.stevemeadedesigns.com/board/topic/167433-snows-dd-1-tracks/ My take on OFC vs CCA: https://www.stevemeadedesigns.com/board/topic/110381-things-that-piss-you-off-in-the-car-audio-world/?do=findComment&comment=2461444
Karkov Posted March 14, 2015 Report Posted March 14, 2015 I wish I was having a no voltage drop issue 2007 Chevy Tahoe (SOLD) 12 ~ FI Audio X series 10" w/BP option 2 ~ DC Audio 5.0K @0.67 3 ~ DC Audio 5.0K @1.0 2 ~ PPI 3 way sets (not installed yet) 1 ~ RF T400-4, 1 ~ RF T600-2, 1 ~ RF T600-4 4 ~ CT Sounds 5.25" Strato comps (rear fill only) 1 ~ XS Power D4800 1 ~ XS Power D3400 8 ~ XS Power XP3000 160 stock alt, Mechman 370 Elite, 185 DC Power 320+ Sq. Ft. Sound Deadener Pioneer AVH-X5500BHS Youtube: https://www.youtube.com/user/knfjdkghjudfhsgkjdhf/videos?sort=dd&view=0&shelf_id=0
OrionStang Posted March 14, 2015 Report Posted March 14, 2015 Fucking Christ. SMD Super Seller My Feedback Thread
khinds94 Posted March 15, 2015 Author Report Posted March 15, 2015 You have an oscope right? Crank that sucker. There's a link in my sig to some test tones you can use too. Try the -7.5 or -5db 40hz track. -5db will be safer, but you aren't running that much power to the mayhem so if you are adventurous, try the -7.5 track It's the Tantric HD but I'll try the tones. 03 Sable LS AA mayhem 12" D2 Sundown ZV4 12" D1 Tantric HD 12" D2 Tantric SHD 12" D1 Sundown X12 V2 D2 2.5 cu net Sundown 2000d @ 1 ohm XS Power XP2000 Sky High Sound Deadener Sky High wire Stock alt
khinds94 Posted March 15, 2015 Author Report Posted March 15, 2015 I wish I was having a no voltage drop issue at this point I think it's more of an amp/Rca issue possibly. 03 Sable LS AA mayhem 12" D2 Sundown ZV4 12" D1 Tantric HD 12" D2 Tantric SHD 12" D1 Sundown X12 V2 D2 2.5 cu net Sundown 2000d @ 1 ohm XS Power XP2000 Sky High Sound Deadener Sky High wire Stock alt
SnowDrifter Posted March 15, 2015 Report Posted March 15, 2015 You have an oscope right? Crank that sucker. There's a link in my sig to some test tones you can use too. Try the -7.5 or -5db 40hz track. -5db will be safer, but you aren't running that much power to the mayhem so if you are adventurous, try the -7.5 track It's the Tantric HD but I'll try the tones. My bad! Even still, my statement regarding power and tones still applies ~~~~~~~~SAY NO TO PHOTOBUCKET~~~~~~~~ Snow's DD-1 tracks here: https://www.stevemeadedesigns.com/board/topic/167433-snows-dd-1-tracks/ My take on OFC vs CCA: https://www.stevemeadedesigns.com/board/topic/110381-things-that-piss-you-off-in-the-car-audio-world/?do=findComment&comment=2461444
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