ehall8702 Posted April 29, 2020 Report Share Posted April 29, 2020 So basic run down, big 4 , 300a alt, nvx jad 800.4, taramps md8k, 2 h6 flooded batteries up front. Voltage dips to high 12s on hard draw, bass keeps playing but the nvx cuts out on high draw. Both Amos are on a single run of 3/0 temco welding wire. Ground is on seat mount temporarily till I get time to get it on the frame both up front and in the rear. Gains are set by ear on the nvx and then down quite a bit ( waiting on my stimulus to stimulate me a dd1!). Is my taramps sucking up all the juice and starving the nvx? Or is it my ground the issue? I'd imagine the bass amp would cut out first. Also have 1/0 oversized cca shca from battery to the stock fuse block, Bluetooth seems to shit out once in a while for a split second sometimes too, maybe I need to directly power the headunit from batteries? Volt meter is off of the remote wire to amps , have a pair of meters coming to wire one to each amp off a relay so I can see voltage at + input at each amp so it is easier to monitor also. Lots more work to go but can only do so much with what I got, definitely would like to figure out what the issue is so I can go after that first. Also waiting on a second run of 3/0 too, maybe it'll solve sum issues too. 2009 Silverado 1500, 7.5" lift, 37x12.50r17s, Built Gen 4 5.3L ( 4.8l flat pistons, decked 243s, SS2 Cam, Pac 1218 springs, ported intake, 120mm TB, Long tubes, 3" duals HP tuner software tuned by me), 4l80e swapped and 4.56 gears. All done by me. stereo is Pioneer avh 600ex, all stinger rca, jp23 v1.5, skar rp150.4, and hertz hpd4. 2 SHCA 6.5 8ohm, 1 SHCA 3.5", and 1 DS18 tw120pro in each door. The 3.5 mid and 3.5" tweeters are powered by the skar rp150.4, the 6.5s are powered by the hertz bridged @4 ohms. Dual runs of 3/0 welding cable, 300a alternator, 2 Vmax AGMs up front. current sub is a AB XR 12 ( dual 2 ohm) with bottom spider cut out in 2.25 cubes at 32hz Link to comment Share on other sites More sharing options...
MrSkippyJ Posted April 29, 2020 Report Share Posted April 29, 2020 unhook the sub amp and see if the issue persists. I would change that ground ASAP too, IIRC people who know what they are talking about have said seatbelt and seat bolts are bad places for grounds (i think I remember this correctly anyway). F150: Stock 2019 Harley Road Glide: Amp: TM400Xad - 4 channel 400 watt Processor: DSR1 Fairing (Front) 6.5s -MMats PA601cx Lid (Rear) 6x9s - TMS69 Link to comment Share on other sites More sharing options...
ehall8702 Posted April 29, 2020 Author Report Share Posted April 29, 2020 2 hours ago, MrSkippyJ said: unhook the sub amp and see if the issue persists. I would change that ground ASAP too, IIRC people who know what they are talking about have said seatbelt and seat bolts are bad places for grounds (i think I remember this correctly anyway). Yeah I know it's not the best ground, been lazy lately, gotta move em. Rite now both grounds r on a distro block then to seat bolt. 2009 Silverado 1500, 7.5" lift, 37x12.50r17s, Built Gen 4 5.3L ( 4.8l flat pistons, decked 243s, SS2 Cam, Pac 1218 springs, ported intake, 120mm TB, Long tubes, 3" duals HP tuner software tuned by me), 4l80e swapped and 4.56 gears. All done by me. stereo is Pioneer avh 600ex, all stinger rca, jp23 v1.5, skar rp150.4, and hertz hpd4. 2 SHCA 6.5 8ohm, 1 SHCA 3.5", and 1 DS18 tw120pro in each door. The 3.5 mid and 3.5" tweeters are powered by the skar rp150.4, the 6.5s are powered by the hertz bridged @4 ohms. Dual runs of 3/0 welding cable, 300a alternator, 2 Vmax AGMs up front. current sub is a AB XR 12 ( dual 2 ohm) with bottom spider cut out in 2.25 cubes at 32hz Link to comment Share on other sites More sharing options...
ehall8702 Posted May 1, 2020 Author Report Share Posted May 1, 2020 Found the issue, I only grounded my driver side battery to the chassis and not the engine ( yes frame grounds are coming soon). I got going with my multi meter and any ground except that batteries ground wouldn't show me voltage off of that batteries positive so I got digging, added a ground from that battery to the engine and all is good, truck hasn't been this loud ever! I used the clip meter on my md8k and can finally get it up to a satisfactory level, actually popped a 250a fuse jamming, alt is keeping volts waaay up, happy as hell now. Can't wait to get the second run of 3/0 and my second 300a alt and let her rip! 2009 Silverado 1500, 7.5" lift, 37x12.50r17s, Built Gen 4 5.3L ( 4.8l flat pistons, decked 243s, SS2 Cam, Pac 1218 springs, ported intake, 120mm TB, Long tubes, 3" duals HP tuner software tuned by me), 4l80e swapped and 4.56 gears. All done by me. stereo is Pioneer avh 600ex, all stinger rca, jp23 v1.5, skar rp150.4, and hertz hpd4. 2 SHCA 6.5 8ohm, 1 SHCA 3.5", and 1 DS18 tw120pro in each door. The 3.5 mid and 3.5" tweeters are powered by the skar rp150.4, the 6.5s are powered by the hertz bridged @4 ohms. Dual runs of 3/0 welding cable, 300a alternator, 2 Vmax AGMs up front. current sub is a AB XR 12 ( dual 2 ohm) with bottom spider cut out in 2.25 cubes at 32hz Link to comment Share on other sites More sharing options...
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