Amplifiers / Head Units / Processors / Electrical

I currently have 2 batteries in my car. I've been using my ctek 3300 to charge both at the same time... Shizz mentioned something about not charging batteries at the same time because of possible issues with rest voltage differences between batteries. If I want to charge mine separately, could I just disconnect the positive(charge) wire and leave the ground connected when charging the batteries so they are charged separate??? Does this make sense?

Being a RF employee, I get a chance to beta test some of the units that we have created this year. Right now, I am currently testing the Power T15004: 125 W X 4 @ 4 Ohms RMS 250 W X 4 @ 2 Ohms RMS 375 W X 4 @ 1 Ohms RMS 500 W X 2 @ 4 Ohms Bridged RMS 750 W X 2 @ 2 Ohms Bridged RMS It is 1ohm stable! It is pushing out a lot more than the rated power though...for example: 125W x 4 @ 4 ohms RMS...it is doing 300W x 4 @ 4 ohms RMS!!!!!) The current draw isn't too bad either...(I only have the amp running on 1 channel though.) From what the engineers are telling me though, it is drawing about 200-300 amps at MAX POWER. Here's the kicker: The total RMS (all channels combined…

Ok so I am about to add a battery soon to my system and I was talking to a local audio place and he said an idea and wanted to make sure it would work without issue's. So When i run my wire back from my front battery I need to place a fuse close to that battery, Then everyone always says you should place another fuse right before the rear battery on the same power line. Then I wasn't for sure if you need another fuse between the rear battery and the amp also since its only like a 2-3ft wire of power?... But ok.. so he said instead of buying a fuse near my rear battery and a fuse between the amp and rear battery ( because this would = 3 total fuses ) He said on the rear b…

what would it take a Capacitor? Or another battery in series?

Have two D2 Fi BL's each coil reads 1.7 like it should, I have them wired series/parallel for 2 ohm load being amps are strapped, when I disconnect sub wires from amp terminals to check the ohm load I'm at 1ohm technically I would be at .8 due to dmm is .2 off, I have each coil ran to back of box with 8 bolts/wing nuts, for easy load change, shouldnt my load be higher with box rise/resistance of bolts n everything else that comes into play, I triple checked all wiring from top to bottom pulled subs out several times checking coils/wires and everything is 100% right anyone have an idea

Whats up guys this is Rp i own a car audio shop in Lafayette IN i am running street c this year and looking for new amps... currently using 4 Memphis 4kw and pro-comp subs. looking at the 3000 watt ssa but i need test results on them... volt drop\ power\ ohm\ and amp draw

I have always crimped my connections as they mostly are 8 awg or less. Moving to large wire I have found crimping to be a royal pain in the a$$. I was looking at soldering as a nice option but I have only ever soldered water pipes. Is the process and technique basicly the same? Flux the wire and inside of bass connector, heat connector, insert wire and place solder around the edge of the wire so that it is pulled into the connector? Any help that you could provide or tricks of the trade would be great. Plan on upgrading the Big 3 this weekend and some under the hood wiring. Thank you.

Ok, I just got in my Fi Q 15. I have it running 1000rms at 1 ohm on a Sundown 1500D on stock electrical. I am getting a bit of dimming. I have a run of 1/0 wire with a 1/0 battery to chassis ground. I am thinking of going pickup a Kinetik HC600 or HC800 and put it in the back since, I still have to hookup my JL 300/4 back there. Would this take a bit of strain of my front battery? I REALLY dont want to have to change my alt. Factory amperage on my Tacoma is 80 amp.

im upgrading my sub to an xcon probably 12..maybe 15 (id like to get atleast some hair movement for an extra $10 why not) gunna be running it of a rockford fostgate 1500w amp: http://www.sonicelectronix.com/item_26139_Rockford-Fosgate-T1500-1bdCP-2010-Model.html a few people said that their birth sheet said 1900W battery to amp is 4G wire im driving a 98 honda crv so its a small suv question is... for running that amount of power do i: need to do the big 3? need to upgrade the stock battery (51R there pritty small) OR add another one? What would be the ideal set up to make sure everything is working full potential? and do i NEED to do it? Reason im asking is im probably…

Has anyone ever heard of their wiring? I've been looking at it because it was so cheap. It's on 1800woofers and I've looked at welding supply, I'm debating on which one to get right now. Thanks guys

im not too sure what bass boost is or how to properly set it. some of the people i know say i shouldnt use while others say it helps...please help i know probably a noob question.

well here are some gut shots of my new mids and highs amp. this will be part of an active two way front stage.

Are they any good? The ones in question are the GD-6001 and AP-3001. Do they do rated power? How durable are they? How is the build quality and reliabity? I know that the GD-6001 is CEA Compliant so it should do rated if not more but I am worried about the quality of the amps. I want first hand experience not what people have heard. Thanks in advance for the feedback.

Hello ppl does anyone onwn this amp I want to purchase one from the net...How good is the sound quality ? I'll be using it on coxials speak. or can someone also recommend me an amp let's say about 50 rms per channel .... and budget around $150 thanks to all

Hey guys!!! I bought an alpine cde123 and it says it has 4v preouts before clipping. Well I am wondering why when I measure at volume 23(at 24 the speakers start to distort) it only measures .188v, I had to max my amp gain out to get it to play full tilt. Even the the amp clipping light doesn't come on when it's up all the way? What could be the cause of this?

If you have one post up your opinion please.

I have a Hifonics XX-Colossus II, would the new Hifonics Colossus be better or worse? Mine: http://www.sonicelectronix.com/item_5382_Hifonics-XX-Colossus-II.html The new one: http://www.sonicelectronix.com/item_32990_Hifonics-Colossus.html I noticed the new one's CEA-2006 compliant.

I tried to look up past forums on this and had no luck. How much will a zx2500 draw at 2 ohms? Im gonna run 4 for a daily setup and im trying to figure out how many alts and what amperage alts i should run to properly supply these amps with enough amperage. thanks

what do you guys think of the ab vfl400.1 is the stable a .5ohm and what kind of power it puts out....and what kind of power it puts out straped

I can’t find anything online on these amps. Leaning towards the crossfire 6k but I would to see clamp results starting at .5 and around 1.2-1.8 ohms after rise between 12.8-13.5 volts ok the new model dd m5 and crossfire xs 6k.

just got my amp. in the box it came with a paper that says "Total Maximum Power Output: 930 watts." can anyone explain what exactly this means? like is it at 2 ohms at a certain voltage or is it the 2 ohm and 4 ohm ratings total added? or what? thanks!

What about channel separation, is it important when shopping for a car amp? If so, minimum value? What am I supposed to look for when choosing among the different makes and models? Which parameters, par price is most important? I would like to get suggested minimum and maximum values where appropriate. Values are for me like a walking stick, I doubt my progress without it/them. Not as face value, but more as a guidance. This is just for the gross sorting phase, to keep the numbers of prospects as low as possible. I am looking for a 4 channel amp, with at least 4 x 100W @ 4 ohm to drive my front system. The amount of information on some home pages are appallingly sparse, I…

How do i know what size fuse to get? 20 amp or 300 amp? Is it a preference thing or what? Anybody care yo elighten me...

My radio make my subs "pop" when I change tracks and turn off the car. I have tried replacing the rca's that didn't help. differnt head unit stopped it. But I wanna try to keep my kenwood. Any sugestions. I have heard that there is away to stop it just don't know how.

I am torn here an what amp(s) to power my 2 SP4 18's. I am looking to run RMS to them for a strong daily setup. If I ever do compete would be strictly for fun once. My thoughts are either.... DD M4a @ 1ohm........used 2 DD M3a's @ .5 ohm each........used Crescendo BC5500 @ 1ohm..........new DC 5.0k @ 1ohm...........used Sundown 4500 ( a little expensive IMO).........used 2 Sundown 2500's @ .5 ohm each........used Electrical should support whichever setup....Mechman 270, 2 Redtops under the hood and 2 XS d3400's in the rear with multiple runs of 1/0 gauge to rear. Front stage will get a Crescendo PDX 6.5, 8in and FT1 in each door ran of a Alpine PDX 4.150. I am leaning hea…