Hey you doing bros and broettes, Decided to grab some cleaner looking bits and pieces for the DEVIL. Was running a bit of a rat system before but got my hands on some new goodies, nothing extreme, just looks nice. Sub : 2x Pioneer T-3402R Amp : 1x Pioneer GM-D7400M Speakers : Rockford Fosgate Punch 6", DLS 4" splits. Now, someone hacked at the doors so I wont even get into that, but the primary issue is the sub and amp. We were running 2 x Alpine Bass ZRs (olllldddschhooool) and a Kenwood KAC-7252 amp and it was sweeeeet, just swapped the new kit over and well, dramas. The Pioneer amp is setting itself into Protect mode constantly, blue light pulses, the subs pulse every few seconds and it just repeats that. Earth is strong, fuses are fine, like I said I have changed nothing with the wires, Im rather thinking that I need a capacitor, stronger alternator, or perhaps something inside the amp was fried before I even got it? Previous setup was running 2 ohm, this setup is 2 ohm, and have tried it against a 4 ohm setup and still not working. Help? lol. EDIT : should note as well, that when this happened, the "warning" light came up on the dash, the car is otherwise running fine, liquids are fine, perhaps I've also shorted a fuse? have yet to check. Regards, Leon.
are you're inputs to the amp line level or RCA, Being a mono amp (and I have not actually touched this amp before) dies it have 1 channel of inputs or 2 and how have you got these connected. A quick search on this amp claims they have low requirements for power, and it runs 2 25 amp fuses to your old amps 1 X 40 both require the same size cabling (8 gauge I assume you meet this requirement) so if you have enough power for your old unit I would suspect you have enough for your new one. The new unit does not appear to support bridged connections as it is a single channel amp this leads me to wonder if this is the way you need to look.
My amp would go into protect mode straight away and pulse the speakers. Cause was a power transistor shorting out inside. Bought a new complementary transistor pair, soldered it in and away she went!
the problem there is we should not be thinking by default of internal failures, while they do exist I still like to think that 99.99% of product a person purchases should be fault free and not require to be pulled apart just to get the thing operating - anyone here heard of quality control .... yeah thats bad sarcasm.
I'm running 8 guage for constant and earth, the way I've got it setup is simple, the deck only has one set (L+R) of RCA preouts, that goes from there, to the amp, which only has one set of RCA input, system, ground, all the usual goodies, tried running the amp without the subs attached to see if something else had changed but no...still cutting out. Fuses are fine, both at the constant and the amp (2x25).......running out of options here....
its the wires. its not getting enough power. the 8GA wires are not keeping up with the demand of the amp. i find pioneer amps to be extremely power hungry. upgrade to 4GA wires. and a 4GA earth... might need to trim the 4GA to 6GA to get it to fit.. even try just upgrading the earth first.
Alright man, Im pretty sure I have some 4GA Earth around here somewhere, not too sure about the Constant, I will toy with the Earth and if no luck, then I'lll have a look around at work tomorrow and see what I can do about the Constant, thanks aazn. Will post back when I get some results (for better or worse lol)
maybe just try running the amp under the hood with some short amount of 4G cable to see if that is the issue (you will need to bridge the remote power-on to the 12+ to power the amp alone, remote power-on should be something like a requirement of 12v+ @ 200mA usually). also if you have not done this already, i would recommend making a diy earthing kit, using 8G is fine for it, just run the earth from the battery to a few earth connections like the front strut mounting bolts, then to somewhere on the engine ect, usually 3-4 connections does it. it just allows the alternating system to get a better earth as the factory earthing system is rather poor. this works for any car, it also helped my 95 v6 toyota vienta that has a mb quart 4ch running front and rear mb splits and a rockford fosgate mono amp with 2 15" RF subs, but i still put 2 1 farad caps on that system for the subs. hopefully it is not a defective amp, as that is usually pretty rare.
It's atcually bit that rare to blow a pioneer amp.. But it doesn't sound like it's blown or screwed. Try upgrading the earth on the amp and if you want even upgrade the car earth too.. Most of car audio problems are caused by bad earth.. The earth wire is atcually more important the. The constant. People tend to think otherwise
You can try increasing the gauge of the wiring I would be looking at the earth maybe seeing as there does not seem to be too much else to go wrong. I was looking at the install specs on another site and it stipulated only 8 gauge, also every review I have seen of this particular amp says its designed to be up to 45% lower power consumption than other comparable output amps. I would imagine that unless there is a defect in the wiring then the 8g power supply should be enough. Never hurts to future proof for a bigger install though ......
Exactly, I picked up some 4GA wiring anyway, had some laying around. I took the amp to work to make sure that it wasn't the amp, and well, just grabbed some speaker cabling and hooked it up, purely by itself and powered up fine, no dipping at all, so chances are I just need to rip everything out, and start from scratch.
Sounds like it could be the RCA leads that are shorting ( check for sharp bends and kinks, its happened to me) or the decks output is buggered.
