dlheights Posted April 27, 2007 Report Posted April 27, 2007 Ok, so I put the new system up to an ohm meter. 4 12's, 2 amps, 2 subs to 1 amp. both pair wired in parallel, showed .8 ohms, everything all fine and dandy. Turn them on and play them at volume os 2 and put an ohm meter to them, one pair showing 1.5ohm, the other showing 3 ohm...!!!??? What is going on? I double checked the wiring, identical. The I pull the box out and put the wires to the ohm meter, they are showing .8 on both pairs. I do however have the RCA's daisey chained together and was wondering if that could be the reason why one amp is seeing 3, the other is seeing 1.5 ohm loads?
Slinky Posted April 27, 2007 Report Posted April 27, 2007 you cant check the ohm when the amp is on and the music is playin. you wont get the right reading DD M4 Rockford Fosgate P500-4 SoundQubed HDC415 w carbon fiber cap 2 Rockford Fosagate T1675-S XS Power D3400 Under Hood XS Power D5100 in rear Michael Singer 200A Alt Build Log: http://www.stevemeadedesigns.com/board/topic/153901-2012-veloster-update-842013-wall-build-4-15s/
kickerman Posted April 27, 2007 Report Posted April 27, 2007 what kind of meter 18" mmats juggernaut rf t10001bd alpine h/u
dlheights Posted April 27, 2007 Author Report Posted April 27, 2007 Using a few different dmm's. I just didn't know if the RCA's being daisey chained would affect that radout. I just wanted to know why I was getting 2 different readings, one being at `1.5, the other at 3....
audiofanaticz Posted April 27, 2007 Report Posted April 27, 2007 Using a few different dmm's. I just didn't know if the RCA's being daisey chained would affect that radout. I just wanted to know why I was getting 2 different readings, one being at `1.5, the other at 3.... Im pretty sure your subs wont read correct while the amp is connected to your subs. Disconnect the subs from your amp(s) and check the readout
zaxfire69 Posted April 27, 2007 Report Posted April 27, 2007 Turn your amp off check wires coming into the amp...I just went out and mine read a 1.1 ohm..I have it at 1 ohm so I am guessing that is close enough..
dlheights Posted April 27, 2007 Author Report Posted April 27, 2007 Oh, I pulled the box out to check them, they read a .8. I just didn't know why they were reading differently when the amps connected...
sean 371 Posted April 27, 2007 Report Posted April 27, 2007 The RCA's would have nothing to do with that. It's gotta be your wiring. Or maybe someone shipped you the wrong subs? Always a possibility... A couple links to some box builds: Tahoe Box 1, Tahoe Box 2, Nissan Titan, VW GTI, Mini-Bump, Hummer H2, Ford F-150 My own car builds (current setup --- under construction): Overall Thread, Kickpods, Dash, Back Doors Subwoofer Wall
ChevyBoy Posted April 27, 2007 Report Posted April 27, 2007 sounds like box rise. btw, you can check the impedance of the subs while its connected to the amp, but the amp cant be on. and yes, its perfectly normal for a sub to read a little higher or lower than what its rated at. coils arent perfect.
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