newls1 Posted April 8, 2010 Report Share Posted April 8, 2010 Please no one take offense to this, but I really want a reply from people WHO KNOW THE ANSWER, not "maybe" .. Basically my issue is ground loop noise that i've been battling for a little while. Long story short, I have 2 grounds going directly to my tahoes frame (on drivers) each run is grounded to separate bolts but they are right next to each other. Would it be better to run both those grounds to the same bolt/nut setup, would that maybe take away some of my ground loop noise? or did I do it right by having both grounds to their own bolt/nut setup? I love my staffie So anti FACEBOOK it isn't even funny Link to comment Share on other sites More sharing options...
Andrew2944r Posted April 8, 2010 Report Share Posted April 8, 2010 You did it correctly Team Ampere Audio Link to comment Share on other sites More sharing options...
wL<3bass Posted April 8, 2010 Report Share Posted April 8, 2010 The fewer the grounding points the lower the chance for noise to present itself into your audio system. "Generally ground loop connection exists when an electrical system is connected through more than one way to the electrical ground. To prevent ground loops, all signal grounds need to go to one common point and when two grounding points cannot be avoided, one side must isolate the signal and grounds from the other." Read this. Vehicle: 1997 S10 Blazer 4dr 4X4 Exterior: Rear End Bagged, Black Grill, Lifted 2" Amplifiers: Rockford Fosgate T8004 & T10001bd Batteries: 2 Stinger SPV35, Kinetik HC2400 Electrical: Big 3, DC Power 290amp Alternator w/ MLA at 15.5v Enclosure: 4.2 ft³ @ 33Hz 84sq.in. of port (20sq.in. per cube) Headunit: Eclipse CD3200 w/ 80G iPod Mids/Highs: Rockford T152s (a-pillars), Rockford T162s (doors) Subwoofers: 1 15" Fi BL Fully Loaded Wire: All 1/0g Kicker Hyperflex My YouTube Videos My Fiberglass A-Pillar Build My "Seamless" Looking Box Build My DD1508 T-Line Bandpass Build "Seamless" w/ Acrylic Windows (for '05 TrailBlazer) My Stealth 8" Fiberglass Build (for '05 TrailBlazer) My Build For A Friend's '08 Cobalt 15" BL Sealed Off From The Trunk My feedback/references... Link to comment Share on other sites More sharing options...
newls1 Posted April 8, 2010 Author Report Share Posted April 8, 2010 The fewer the grounding points the lower the chance for noise to present itself into your audio system. "Generally ground loop connection exists when an electrical system is connected through more than one way to the electrical ground. To prevent ground loops, all signal grounds need to go to one common point and when two grounding points cannot be avoided, one side must isolate the signal and grounds from the other." Read this. ok, so if im understanding that right, I need to put those 2 grounds to 1 bolt then....right? Thanks for the link bro... I love my staffie So anti FACEBOOK it isn't even funny Link to comment Share on other sites More sharing options...
J00bles Posted April 8, 2010 Report Share Posted April 8, 2010 ok, so if im understanding that right, I need to put those 2 grounds to 1 bolt then....right? Thanks for the link bro... yes. its typically best to ground to the same point to prevent ground noise 8 DC Level 4 M2 15s2 DC Audio 5ks26^2 clamshell tuned to 30hz9 Kinetik 1400sMechman externally reg'd 340 S seriesin a 99 Jeep Cherokee Click to see J00bles' Youtube Channel Link to comment Share on other sites More sharing options...
Boon Posted April 8, 2010 Report Share Posted April 8, 2010 Resistance between those points is probably 0.000001 ohms. Doesn't make a difference as long as each bolt is done properly. Ground loops come from the signal side of things 99% of the time - bad RCA ground or bad headunit ground is such a common one. 10.x volts fo' life! Link to comment Share on other sites More sharing options...
dwright27 Posted April 8, 2010 Report Share Posted April 8, 2010 bad headunit ground is such a common one. Chevy is notorious for this. 2006 F-150 4 DC XL M2 18's Walled Daily Driver XS Power 4 DC 3.5kw Team DC Team S.P.L. Lot of Audio Technix and 1/0 DC Audio Dealer American Bass Dealer XS Power Dealer Audio Technix Dealer Link to comment Share on other sites More sharing options...
audiofanaticz Posted April 8, 2010 Report Share Posted April 8, 2010 Meh, I just run straight ground from front battery to rear batteries. But the 2 separate grounding locations next to each other shouldnt cause any issues at all! Do you have any rca's near a power wire, such as by your amp rack, or crossing over a battery? Even shielded rca's will get bad noise running over a power wire. I know I had to be very careful on my layout with the high amps mounted right above the batteries or I had noise. Link to comment Share on other sites More sharing options...
brewer_brewer Posted April 8, 2010 Report Share Posted April 8, 2010 i would check for that ^^^^^ and try grounding your rca's at all endpoints (headunit, eq, amp, etc) usually you can take a lil 14g wire and touch from the rca to a grounded point do it with the noise present (system playing) and ground all the endpoints until you find one that eliminates the noise REFS http://www.caraudioclassifieds.org/forum/itrader.php?u=2026 http://www.stevemeadedesigns.com/board/topic/44535-official-brewer-brewer-feedback/page__p__625998__hl__brewer__fromsearch__1entry625998 "you're not allowing natural selection to work, you're like the guy that invented the seatbelt" Link to comment Share on other sites More sharing options...
n8ball2013 Posted April 8, 2010 Report Share Posted April 8, 2010 Newls you may want to take some time and check your factory grounds as well. THERE IS NO BUILD LOG! 1998 Chevy Silverado ext cab Alpine CDA-9887 4 Team Fi 15s 2 Ampere Audio TFE 8.0 2 Ampere Audio 150.4 3 Digital Designs CS6.5 component sets Dual Mechman 370XP Elite alternators inbound! 8 XS Power d3400 6 XS power d680 Second Skin Stinger Tsunami Wiring Sky High A Real Voltmeter not a piece of shit stinger. Link to comment Share on other sites More sharing options...
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