Amplifiers / Head Units / Processors / Electrical

Ok so when its warm out my amp turns on just fine... Now that its been cold out my amp doesnt turn on.. No prot. Light. No lights at all.. The HU remote wire is reading less than 1 volt... I hooked up the remote wire to the red wire on the cd player... The amp turned on but it was making weird noises when I turned the car off.... Is the remote wire on the HU goin out?

Ive been searching around for a new headunit for while now. I've narrowed it down to either an alpine cda 105 or kenwood kdc-x494. I've had alpine before and never had any issues. Never owned a kenwood hu before and the only complaints I'm seeing are that they are complicated. And only difference I'm seeing between the two is preout voltage and where the usb is. Which one would you guys recommend and why? Open to other suggestions, except pioneer(bad experiences) and I'd like to keep it around $150.

Just seen these Tenergy LiFePO4 SLA Style Battery 12.8V 20Ah at parts express by my house and wondering if they would be any good for car audio. Iv been seeing people using the juicebox lithium batteries and the 40 ah one is $1500 . So just trying to see if 2 of these would be the same. Really trying to cut down on weight and my van build and this would help out alot rather than having 500 plus pounds just for batteries

Last weekend I hooked up a Rockford fosgate p400-4 to my jvc kd-r810 and everything was fine untill today. I went to a friends house and it worked fine but on my way back home the sound would just cut in and out when I turned the volume past 10... At first I thought it was my iPod cable but it does the same thing when I play CDs too. Any ideas as to why this is happening?

Ok so i'm going to need RCAs eventually and i'm not keen on paying out the ass for them.

Alright. So im putting together my new system and im new to this so i need some guidance or help. I just bought a BL 15 fully loaded dual 1 and built the new box so thats takin care of for the sub. Now im buying a Hifonics BXi 1210D. Im going to have to run 4 gauge wire with that amp tho and i was wondering would i want to get an amp with 0 gauge instead? difference? I dont know what to throw around my car for speakers tho. any ideas? Im going to run a Rockford punch 550x2 to the speaks what ever they are. And im going to run another amp, Alpine 650 mono to some towers im throwing in. Do i need a distribution block or a fused distribution block to run 3 amps? Going to hav…

yep..we have one at the shop..lol.. here's a link at crutchfield anyway, in person, this thing looks sweet. our manager is thinking of dropping it in his car for demo. what are your thoughts on this? good or bad? we are thinking, since it can send/recieve anything bluetooth, ie: play the mp3s off your phone, display your contact list, etc...if one had a bluetooth enabled laptop,you'd never, ever need to buy cd's again... again, thoughts? if chris puts this in car, i'll post updates... wheeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee

Im looking into getting the 10" FI Bl sub fully loaded with a 1cuft (or maybe slightly bigger if i can) ported. Theres a site im sure a few of you guys have heard of that sells them refurbished. well anways. on this site they have the... SAE-1200Dv1 SAE-1200Dv2 SAZ-1500D ... these three are listed right now and im curious which one would fit me better. i dont want to run an extra battery if possible just due to the hassle. any help would be greatly appreciated!! Thanks!!

Hey guys, right know i currently have a jl w6v2, its being run by an ancient rf amp thats putting out around 500 watts or so. First question... Would i be safe to run this amp at 2 ohms for the w6. Second Question... Honest opinion on the amp and overall quality...

Hey ssa jfreezy here with another question. Is there a difference in sound between 1200rms and 1500rms or is it just spl? Wired to 1ohm will I hear a difference between the both with same amp settings? I'm choosing between a sundown audio sax 1200 or a saz 1500. I want to power two SA 10s or SA 12s at 1 ohm. Ported tuned about 33-34

anyone know of a place that can fix an internal amp on a HU for less than 120 bux.. the place here says 40bux but there labor charge is 80 bux off top <_< .... i talked to david from RE a while ago about it and he said he had a friend that could do it for like 70 + shipp, but he hasn't been on aim lately..

OK I have made the decision to go with a custom dual alt set up in the Taurus...yada yada ya mount it, longer, belt, etc.. done. BUT I got to thinking about a few things I learned in school and I was wondering if anybody else on here with a dual alt set up has run a equalization connection between the two to prevent the alt that has the stronger field excitation from taking all the load and turning the other weaker one into a motor? And how do you know that both are in phase as not to double voltage when they are 180 degrees out of phase, 28 volts will fry my car. anybody with knowledge of electron physics that could help would be GREATLY appreciated

I have a Cadence ZRS-C65 with two SA-10 D2s. When setting the gain, do I go by the impedance the subs are wired to (2ohm), or what they actually measure at when I test the wires with a DMM (2.7ohm)? Also, when voltage drops does the power drop, or does the amp draw more to keep power where it should be? My electrical isnt up to par at the moment (all stock), so I sit 13.8v idle, and drop to high 12s when the amp reads ~30v. So if thats 450w at 2ohm, which would be 32amps if it stayed at 13.8v. Since it doesnt, and drops to about 12.8v, does that mean it draws 35amps instead to make the 450w, or does it continue to draw 32amps and only put out 410w? And when figuring effi…

I am getting 2 15" AA havocs (hence the name lmao!) 1250 watts rms per sub ... i have noticed that they are going to have to be dvc 2 ohm per sub (no other options for ohms)... My question is which amp would be better to power these subs... i kno alot of responses will be sundown... and i am leaning toward sundown but thinking realistically i could wire the sundown to 2 ohms and get 1600 watts split between 2 subs or i could go with the kicker and get 2500 split between subs... i really want the sundown but i dont want to underpower the subs... i am stuck and getting indecisive... which would be the better buy...

I just installed the digital knukonceptz distribution block and connected a line for the ground so the digital display can work. My question is how long should the display stay on? Its been about 15min and its still on.

Do you like the new 45 degree angled connectors or the straight out connectors?

I currently have L7s, I was going to get a FI Bl. But instead I think ill just keep them for now and I was wondering is a saz 1500D, capable of powering two 15" L7s? or do I need more power to them?

Woot. Tight effin fit. I had t spend soem time on the grinder with the brackets so they wouldnt touch my external rectifers and it was supposed to be a drop in but I had to reclock it. new oem deka up fromt

anyone have experience with these? I was thinking about getting a 400.2 or 500.2 to power to power my front stage(once i can decide on a set) because they look like they have a lot of features for the money. Anyone know anything about these amps?

Okay so I'm trying to get a estimate of how much wattage I can safely put out without harming my amp's by the voltage dropping. I have a relatively small car, it has a 70 amp alt and I'm not sure about the battery. I was originally going to just run 1000watts on stock electrical but I figured if I upgrade my electrical I can go a little bit bigger. Now lets say I do the big 3 on my little car and I add a deep cycle battery in the back for the amp, how many more watts would I be able to run? And one more thing when you have a voltmeter what is the danger zone in volts? I think it was 11?

I have a xp2000 in the back and when I bought it I put it in my car and it charged at 13.1 or 14.4 @ 2k rpm. A few days ago when I turned my car on my voltage was at 13.1 like it normally charges at but when I revved the engine it wouldnt charge to 14.4, it slowly then dropped by .1 around per day until I unhooked it because it got to around 12.2. So I checked my connections and grounds and saw no problems. I then looked at the front battery and it was charging at 13.1 and 14.4, but the xp2000 in the back does not charge when its hooked up. So I hooked it up to a charger overnight and it read about 14.4 in the morning and unhooked it, I then went to work and came back…

This may be a stupid question but this amp is a month old and i noticed the other day when i hooked up my new sa-10s that i had music coming through my subs. My lpf was at 120ish so i dialed it back to 80. Should there be music coming through at 120? especially on a mono amp? IM worried somthing is wrong with the amp as i have never noticed that before on my other amp which is exactly the same only from different vendor.

Ok so im anticipating the arrival of my SP4 18" and i figured i get everything sorted out for when it arrives... My car is currently running the big 3 with 0gauge wire, 2 1000ca batteries, and factory 120amp alt. The amp im using is a hifonics zeus 3216 (3200@1ohm) and will be temporary until i can get a better amp. Will my electrical be good enough? Do i need to upgrade alt for 3k watts? Or can i just upgrade to 2 xs d3100s? Also what amps would u suggest that could give the sp4 the power it needs to do its job? Ive looked into the crescendo 3.5, dc audio 3.5,and soundqubed 4.5, any other suggestions and recommendations? ?

My Friend Has 3 Kicker 12" L7's With A Db Audio 1600 Watts. Stock Electrical. He Was Wondering What Would Be Better To Get An Equalizer Or A Crossover ?? What Do Yall Think ? They Both Bassicaly Do The Same Dont They

Looking for an amp to power my soon-to-come SS RL-p12. I found a Digital Audio amp that didn't look too bad. Just wondering if anyone has/had any experience with them. The key thing here is I also need a two channel (75 x 2 - 100 x 2) that matches. (I found a 75 x 2 Digital Audio also.) I am also leaning towards the Directed 750d and 300/2.