Amplifiers / Head Units / Processors / Electrical

I just picked up a alpine 7949 full copper chassis, anyone used one before?? I know its a flagship SQ unit.. along the 7909 line, just curious to views and opinions thanks, Joe

Since a week or two, my Pioneer head unit has some problems. Sometimes the "face" doesn't respond, as if there is no power to it. It can happen with the music playing or with the h u off. If I unplug and the plug in the car fuse for the h u, eveything starts working again. If I press the reset button on the h u it starts working again, but I loose some settings. Do you know (or understand) what is happening ? Can it be a simple fix, or will I need to buy another h u ? Please help !!!

whats the difference between a graphic eq and a parametric eq. also whats the advantages and disadvantages or each

Does it really matter what RCA cables you use from your headunit to your amp?

so as you may know according to my sig, as i wait for 1/0 gauge in the mail, my amp frequently goes into protect mode b/ my sh*tty "4 gauge" wire lacks the capacity to deliver consistent power. if the amp goes into protect too many times, is it toast? it seems to be sounding a little funny lately... like it lacks the output it once had......

What should i have my x over and subsonic set on? i have my bass all the way up and my gain around 1/2. Should i change that? i have a 15 inch fi bl

Newb here. Im thinking of getting a rear battery in my tahoe. I've done the big 3 in 1/0.Some people tell me to run the positive wire from front batt. Others say run it from from my alt to rear batt. For grounding some say go from negative on front batt to negative on rear batt. Some say ground to the chassis. Some say get an isolator and relay. What am I really suppose to do and do I really need an isolater and relay. What do they do

Does anyone know of a standalone subsonic filter you can buy? My friend bought a Kicker ZX700.5 and it doesn't have one... But he doesn't need a full audio processor or crossover, just the subsonic filter. I'm looking for something that preferably hooks into the RCA's, but if there are any other options please let me know. Thanks for the help

well i got my sub in today for my little mini build im doing and now i need to decide what amp i should go with to power it. the sub is a Fi SSD 12 D1 with BP cooling. I was thinking of running around 900-1000 rms to it at 2 ohms. So the question is what amp would you guys think would be good for this? The budget on this isn't much. probably around 200-225. thanks

Okay so im asking this question for a friend of mine. He just recently bought a hu from a local shop and they do free instal with the purchase...well they said that his car has a factory amp and that they will have to by pass it by running all new wires which will cost $120. I am still learning but this just doesnt seem right. I mean why would you want to bypass a amplifier? The shop said that running the amp would equal less output to the speakers but bypassing it would make it louder. I just dont quite understand the logic so if someone could explain it would be great. thanks

Ok guys i got my saz 3000 order in just waitin on new ones to come in and i've ordered a 18 btl what i'm wondering is will the 220amp "Dominator" Series Iraggi Alternator be enough with a extra batt and if i deceide to go with another saz 3000 would it still be ok thanks for any help ahead of time.

I will be running two batteries for the first time and have some questions. I have an energizer battery under the hood, and a yellow top for the truck. My question is will these two be ok ran together? I thought someone told me the batteries must be the same, but I could be mistaken. Thank you for the input.

Copied from earlier post below by Shizzzon. quick answer- A cap will discharge EVERYTHING in it's bank when a rush of current is requested... A battery will compensate for the current requested when the alternator can't or the regulator doesn't react fast enough. If you could.. try and imagine your battery going completely dead then back to recharging every other few seconds?!?! You can't imagine that at all.. So, you got your alt, a big battery bank and a big ass cap- The cap will ALWAYS be getting drained and recharged all the time... What's recharging it? The alternator... When it's doing that, it's providing less power to the audio system which results in more voltage…

Does anybody have any experience with the above HU, just want to know if it is any good in general. Mainly going to be using my ipod.

Hey, Recently my MB Quart DSC4125 bit the dust and waiting to see if it can be fixed under warranty. Anyways, I have an 8" orphan from Sound Splinter and was wondering what Amp would be good to run it? Either Mono(for sub) and a 2channel to run a pair of Infinity Kappa 682.9cf's or a 4 channel amp again so i can run the sub along with the speakers. Having a hard time finding an amp for a 6ohm woofer that's sweet spot is at 500W. As for budget, not looking to get crazy expensive, say if possible around $300. Just need to be pointed in the right direction. Thanks.

Alright guys I know this kind of question has been asked before but I just wanted to make sure what will be right for me. I already tried searching for a long time but haven't really found my answer. So I just bought a SAZ-2000D from Mark for my subs and I already have a JBL 4 channel amp for my mids and highs. So what I am trying to figure out is if I should upgrade my alt or just get a second battery. I already have a yellow top upfront and I have the factory 145 amp alt. My system would be around 2500 watts but judging by how the SAZ-2000D did on Jacob's clamp test I'm guessing my system will be close to 3000 watts. I have about 400 dollars left to spend on electrical…

So earlyer this summer my kicker 650.4 got a little hot and burnt up. I was a Electrical Engineering student for 2 years so I know a little about the specific components in an amp. I took it apart and saw that it was a piece I haven't worked with before and about 10 of the same one fried. This is a picture from ROE(the amp guts section). I had my friend take close ups that I'll try to post tomorrow but he is having problems with his camera so not sure. Hopefully one of you guys can tell me what these are and if i'd be able to replace them. They are the first 4 black pieces under the metal on top and bottom and maybe 3 on the next sets of 3. Thanks, Austin

I have a 99 3 door Z71. I've upgraded the big 3 to 1/0 ga. I've put 200 amp Iraggi alt. in. I've got 2 Kinetik 1800's in the back. My amps are a RF T600-4, T1000-1. My volt meter still jumps alot and my lights still dimm a little. I just bought the 2 kinetik's new about 3 weeks ago. I put those 2 back there because I was planning on upgrading sub amp and 2-12's. But if it can't keep up with what I have there's no need. Is there something I'm missing to do or what? I don't listen to stereo very often with truck off. I just don't understand what's going on.

So basically I put the ground wire in the power input and power wire and the ground input, now my amp won't turn on, fuck me. All I wanna know is what did I fuck up or possibly fuck up? Thanks for your help..

Which is better to run to the amp, fuse or circuit breaker?

My Velleman HPS10 just came in today before I went to work and I want to set my gain tomorrow morning before I leave for SBN in Daytona. Can anyone just give me a quick run through on how to use it? Thanks a lot.

Ok, i have a pioneer avic N3 but the rca's are bad on the unit. how do i replace them or repair them. i have used a line output converter but i really dont like to use them. any help would be great. THANKS!!!!!!! Eddie G

on my highs amp, im running the power wire as 8 gauge and the ground wire as 4 gauge(i was told this was ok by a friend and professional installer). im not doubting his credibility, i just wanted to know what are the advantages and disadvantages if there are any to wiring your amps this way

I bought a 06 silverado with the bose system an i was wandering if theres a way to run a aux cord from the amp an bypass the headunit?

Just got this fold down face HU today for a tank of gas and 5 bucks. It needs the code for it and my local Kenwood shop wants 85 bones to send it to them for the code. Can someone help me??? I could use a code or someone who can help me here. J