Amplifiers / Head Units / Processors / Electrical

I have a really bad alternator whine. I have a JVC HU with only ONE RCA output. I'm running 2 separate amplifiers: 1 for Sub, 1 for Mids/Highs. Since my unit only has 1 pre-out, I bought some RCA splitters and just ran 2 sets of RCA's from the HU to the rear, sharing the signal between the 2 amps. I then found that there was quite a bit of whine.. However, when I would unplug the RCA's from the bass amp, the whine would disappear. "Ok, bad cable." So I switched the RCA's to see if that was the case, to find that there was still a whine whenever the bass amp RCA's were in. Which makes no sense because the signal plays fine from the mid/high amp without the bass amp RCA's i…

Hey guys, so i'm at a stump with my electrical in my car. I have two sundown SA-15's in my Honda CRV being powered by a hifonics HFI 1500d. I would love to upgrade my amplifier and get about 2500 watts to the subs but my voltage is too low for that type of power. I have been searching for a compatible high output alternator with the CRV for a while now, but have had no luck. Also the alternator is located under the engine so I would have to pay a shop to go in there and install it. All lots of money i don't have to spend. Are there any other ways i can give my electrical system a boost to maintain that 13.8+ to power a higher wattage amplifier? I have already done the big…

like the topic title says i just bought a used dcon. but im looking to get an amp to power it what is the best amp for the money to power this 12" single ohm sub? im on a tight budget here so what would be the cheapest but good amp i can use any help is appreciated.

So , I just noticed that my power cap volt meter is droping to around 11.04 volts when I have my system pounding to its potential - can anyone tell me what to look for as the problem with this - 11.04 cant be right , its usually around 12.5-13.4 , and it drops that low for only a second . My setup is this : Red top under my hood -> isolator -> yellow top in the trunk -> 1.2 farad cap -> amps " Kicker 4ch 70x4rms " , and " Orion 2400D 1200x1@1ohm " . The cap has been grounded seperately from the yellow top - they each have there own , my system is running 4 ga. wire , power and ground .

pretty much straight foward, I am getting 2 Q 15's and I am up in the air between these 2 amps, they are both around the same price and I was wondering some of your opinions on which will push/sound the best with the 15's. Also what is the BP option when you order the 15's? Thx Josh

I have a RF T1500-1BDCP that once it is powered up its thermal light is lit very dim. The amp still delivers sound (and tons of it) and the protect light does not come on. It does this once the amp has power ground and accessory wires connected and radio is turned on. The system has runs of 0gauge KunKoncepts (+ and -), big 3 0gauge, optimum red top up front. Alt is 110 amp soon to be upgraded. I tested the wiring with an old P300-1 and it didn't have the thermal light show. I checked ground, and voltage and both were good. Anybody ever seen this happen? Even though the rest of the system wasn't connected yet it is pushing 1 FI BL 10" (fully loaded) running at 2 ohm. let …

My current setup consists of: -Advance auto parts group 34/78 up front -stinger spp1500d in the back -mechman 270a alt -Crescendo bc2k -Crescendo c1100.4 -Knu konceptz 1/0 all around including big 3 I was wanting to upgrade to something bigger (maybe a dc level 6 18). I am tore between 2 options...(both options will have c1100.4 and same batteries plus some later down the line) 1st: -Taramps hd5000 -2 positive runs of sky high 2/0 from front to back -3 positive runs to the amp -Big 3 in sky high 2/0 2nd: -Another bc2k strapped to the other one -1 run of sky high 2/0 from front to back -2 runs of knu 1/0 or 1 run of sky high 2/0 to each bc -big 3 in sky high 2/0 I can sav…

I see people saying their rms "clamped" all the time, I'm curious to know what my Memphis is actually putting out. I have an amp probe and a dmm. How would I go about clamping my amp to see the power it is putting out?

I have two 15inch Xcons wired at 1ohm and have one + wire and one - wire...the amp speaker connections look like this..... - - ++ where do i put each of my wires for 1 ohm... do i need a jumper on the positive wire? the owners manual says the amp connections are the opposite like this ...+ + - -...and they are like this on the amp - - + +

Hello all, Quick question about wire gauges. I did some research and found Recommended Power and Ground Cable Size so think I should be okay, but wanted to check in with this community first. Currently, I have 1/0 power cable running from the battery to the back of my truck. It hooks into a distro block and from that block I have two 4 gauge wire roughly ~2 feet or less connecting to two amps. One of them is 1000rms mono amp, and the other is a 100.2 amp for my front speakers. If I upgrade the 1000rms amp to 1500rms, will the 4 gauge wire be able to handle the extra power since it is only a very short distance? The ground for the 1000rms amp is also ~2 feet…

I love my 80prs as far as features go. Lots of control with it. Is there any double din touch screen hu's out there capable of processing? Looking to put one in my 03 Tahoe.

So I was driving to school int he morning and I noticed that the volume of my bass was decreasing and it eventually cut out completely. When I got to school I opened my hood and found my fuse holder deformed and melted. Anyone know why this happened? And I cant open the damn thing to put a new fuse in =(

I am trying to decide what amps to use ot run my new system that i am building I have been looking at the mmats 3500.1 and the us amps 3500de I am going to run 4 ts-w 3002d2 subs but I have never used either one of these products I have read great reviews on these amps but here in louisiana where i am from there arent anyone around here that runs these amps or sells them so iam going to have to buy direct from these companies so any incite would be great and if anyone else has any other good amp suggestions that are in the 3 to 4,000 watt range please let me know. Thanks

What exactly does this do to the amp? Also are the prices listed on the website the actual prices? I've never looked into these amps before, and they look real nice!! Ive been looking at the Duece amp, heard nothing but great things about them.

http://chicago.craigslist.org/chc/pts/4286673028.html I'm looking at amps that are being sold locally, and was wondering if this is a true 2k rms. If so, it's a steal for 160

I know this is a really stupid question but I want to make sure I'm tuning my amp correctly. On my amp the subsonic goes from 10hz at its lowest and 60hz at its peak. If I turn the dial to it's 12 o clock position is that 30hz or is it 40 Hz due to it starting at 10hz and not zero? Same with LPF. At its lowest it's 35hz and at its peak it's 300hz. At the 12 o clock position is that 150hz or is it 185hz due to it starting at 35hz and not 0?

hi, a week ago i decided try to make my Polk MM6501 active. all was going well until i went for a drive around the block and i noticed alternator whine. i am using my alpine 9887 for the processing and my sax100.4 for the amp. and then i have Monster 402 series RCA connecting the two. Now i am having trouble finding out the Cause. i re grounded the head unit to a better spot. I tightened my ground for the amp as tight as i could. i replaced the RCA's with some 8 dollar ones from walmart. and i still have it. and it is only my rear/Highs that have the whine. and i don't really want to have to add a filter because i heard that it affects the quality of the signal…

I want some people's opinion on this so i get a better understanding... So, i have 2 amps(u guys know the ones, hehe) that i need to hook up soon taking for granted they work. Now, this is how i have it, but was told to change it so they both are wired the same but have a question so here it goes. One amp is grounded through the battery bank. The other amp is grounded to the chassis. Why? Because the other amp's ground length was a LOT shorter going directly to chassis. I have always heard do not use no more than 1 meter length of ground... Why? If i use 2/0 power and ground, how far can that cable be ran using ground before a problem(what problem) arises? They told me…

epicenter....... when/why do people use them..... are they a waste of money??

Im upgrading my BASS and i was thinking of buying the rockford fosgate T20001bd, anyone know these amps. I was going to try to buy a 12" btl to run off of it as well, do u think it is a good pair up?

Firs off, IF YOUR GOING TO JUST TELL ME IDK WHAT IM DOING, THEN JUST LEAVE. I DO NOT WANT TO HEAR IT. IM LEARNING. (and you know who you are) ok. so as most of u have seen in my other thread, i have just added a seconed battery. only problem is that after playing for 3 or 4 mins, my volt meter and stuff goes back to the way it was befor. goes crazy when bass hits. So im going to do the big 3. i got to looking at my alternator yesterday and my wire going from my alternator goes to my fuse box. not to my battery. so what do i do? should i still updrade it, or just leave it and do the rest? any HELP is appreciated guys. Thanks

I have a pretty simple question regarding use of the remote gain knob for my SAX-1200D. Say I turn the gain on my amp all the way up to max. Obviously not recommended. However, if my remote gain is only set to... lets say 1/4 of the way up, would my sub still be at risk of high clipping and bad distortion ? From what I've read, the remote gain is just what it's name implies, a quick and easy way to turn up or down the gain without having to fiddle with the amp itself. So if that's the case, even if the amps gain is set to max but the remote only 1/4 the way up, it should be the same as running the amp itself at 1/4 gain, correct ? Now I've been testing this out la…

Well I have ran into something here and I think I may have gotten lucky on my part.... My friend who is going to help me install my car system here whenever I get everything together. He told me that he has a 5 farad cap and that I could have it from him for a few cases of...beverages. Now I am curious about this seeing as I was told to stay away from caps and just get a battery bank. What questions should I ask him when deciding if I want this or not? He says its pretty new and was only installed into his car system once. Then he took it out due to too many tickets over a week (must have been dumb about it) and never put it back in. Now for the serious question here, sho…

What happens if you listen to your subs when your car is off? Will my battery die?

Which amp is better and why