Amplifiers / Head Units / Processors / Electrical

So after getting another battery that i had layin around and my trusty 250a battery charger, i hook the battery up backwards because someone decided they'd have a black wire for + ...lmao scared me a lil bit as sparks flew everywhere... Ok but i get it hooked up and it still cuts off as the charger has 12low, med, and high. High usually runs my voltage up to 16 and into dangerous levels, so i turn it up and then go turn the battery charger to high, and voila. I had the gain turned all the way down and my trunk was about to kome off. I'm not really quite sure if the SX's can take it,lol. I let it play for about 10mins, the cones were extremely hot, so i gave it a break. …

What is the importance of an amps efficancy? I know being effeciant in anything is good, but how does this affect amplifier performance when comparing apples to apples. If you have one amp that is say 90% effeciant at 4ohms and another amp that is 70% effeciant at 4ohms and are both rated to put out 500 watts at 4ohms at 12.8 volts; what does the effeciancy rating tell me, the consumer, about the amp I am using? Any input would be appreciated.

My friend just got a Sundown 3,000 for his truck. I brought up the idea of maybe trading my DD M3a for his SAZ3,000. He's doesn't care either way. What would you do and why? Side notes: For now I will have one amp on 2 ZCON 18"s at .5 ohm. Then get a second of either and have each at 1 ohm daily, and .25 for shows and such.

Hey, I was just looking for some input on which car battery I should purchase for my 2000 GMC safari van. I plan on running 2 18" Fi Q series off of 2 apline pdx 1000.1's also a alpine for my highs and mids. I have already purchased a xsatic 400 series batcat for the rear and wanted some help on picking a battery for up front to replace the stock one. I am running 0awg power and ground wire from the front battery to the rear also am planning on doing the BIG3 but dont really know how to upgrade the alt. wire to 0awg, anyhow i dont plan on upgrading the alt right away maybe down the road so I need a battery that can be ran off the stock alt. I have looked at the optima…

just wondering what i need to set my gains at voltage wise with my ac meter for this amp. is it around 80 volts? thanks for any help

Sup, I did a search, but couldn't find anything. I got a pioneer z130bt and a ipod touch. I downloaded a bunch of album photos and they used to show up, but after I downloaded the latest ipod update, I can't get any to show up on my HU even though they show on my ipod. Anybody had this issue?

I was at wal mart the other day picking up some speaker wire for an install i was doing for a friend. I was looking at the HU section just out of curiosity. I found a unit that is made specifically for iPod/iPhone playback. It had a FM tuner, aux in, and the faceplate flips down with a iPod/Phone docking station. I put my iPhone on it to see if it would work with it. It charged my phone and played the music just fine. The price on this unit was 100$ even. I know dual is probably one of the most frowned upon audio companies out there.. but I've been looking into a new HU with a budget, and 95% of my music is played from my iPhone, so I dont need all the fancy features. For…

alright so i have a cheap walmart wet cell battery under the hood.... now i bought i xs power d3100 to run my amps off of in the trunk.... can i wire the 2 batteries parallel together or should i just run them seperate to the alternator ?? if i should run them seperate how should i do it ?? i wasnt sure if i could run them together since one is a wet cell while the other is a dry cell. i wanna run my cars electrical off of the walmart battery and the amps off of the d3100.

so we got everything put in, and long story short, the subs just make a popping sound about every second...kinda funny Ive never heard it before. we wired up one sub to the mid amp and it beats for only 400 watts. so is my amp shot? power supply....? this would be the second time Ive got shafted on an orion 2500d, and I'm about to give up.

Kenwood KDC-MP205 Anybody familiar with this? My step bro just got one and we CANNOT figure out how to get it to play his itouch through the AUX input

looking to put a clean sounding (sq) system in a nissan senta. I do not want to upgrade the alternator. Any on a amplifier suggestions in the $500 range. if it costs a little more that is fine also.

I am going to actually use a dimm for once....easy enough looks like.....but the mini has a few more controls than most amps I have run.... any pointers on what to set the amp at? test tone recomendation or is 50 good enough?

I plan on running this wire http://www.wireandsupply.com/product_p/sgx-2-fslash-0-fslash-01.htm , which size of these http://shop.genuinedealz.com/Marine%20Electrical%20Supply/Tinned%20Copper%20Cable%20Lugs/00%20AWG%20Tinned%20Lug/?sck=12205831 connectors should I buy to run with the wire? Also will a 0 gauge distribution block work with that 2/0 gauge wire, I have not been able to find a bigger block? I will be running 250amp fuses throughout the setup. One from alt to battery, one 12" from battery to distribution block? I only want the cap to be used on the sub amp and both outputs on the block are 250amp fused, do I need to run anymore fuses in the setup?

Has anyone done this that could give me some advice? Any explorer within a couple years would be the same.

I'm wondering the best thing I can do to help my situation. It's been ridiculously hot here in San Antonio this summer and my SAE-1200D just isn't taking the heat well at all. My Cadence TXA1000D never had a problem but I guess with the extra power this SAE has the heat is causing trouble. The amp gets VERY hot to the touch and after a while goes into protect. At first I thought I had a problem with the subs cause they would make a strange noise before shutting off but it cuts out even when my HU is paused so I don't think I have a subwoofer problem. Maybe mount something like 2 120mm fans on the bottom of the amp? How would I hook those up? Just wire them to the power/gr…

I tried to set the gains on some amps with a DMM and a test tone cd but I could not read the good values on the DMM. One of the Amps is an sax 1000 Sundown at 1 ohm : so I should read sqr(1000 x 1) = more than 30 volts. I don't remember the right number, but I had the good number when doing it. the maximum I read was 21.7 volts, withe knob to the max! What may be the problem? How can I do the good settings? The DMM is brand new, maybe it is a bad one. Hope not! So, I had to set it by ears. Help me, please!

Do any of you guys know what's the maximum unclipped output voltage for a PG tantrum 1200.1 at 3 ohms?

Is trading a memphis mclass 1100x1 for a massive n4 2000rms plus $150 a good deal?

Can someone tell me a little about the total harmonic distortion value on amps as far as what the max acceptable level should be & what I should look for on one? I have seen most mid range amps at around 0.02 to 0.05. Is this something I need to concern myself with or is the difference going to so little I won't even notice? Thanks

It was called the Manhattan... It was 5 feet long & it required cooling lines. It was featured back in the day as a new product feature in a car audio magazine (early 90's?).

hey guys, i came across a nice and in great condition orion xtr250 3G amp for a good price. i was just curious to know if it was worth dropping a little cash on it. does $125 sound right as far as how much they resale for? im only giving $30 for it..... what you all think?

What size wire should i use if i wire my doors? Would like 16 guage be enough for like up to 80rms? I only have a 45 or 55 rms amp atm but just planning ahead.. And any tips on wiring a door? Iv never done it..

Due to some unforeseen circumstances (dealing with a disreputable online retailer) it appears like I will shortly be in possession of 2 amps instead of one. I had just wanted a 2 channel amp to power my Phoenix Gold RSD65cs components and then I was going to determine whether or not to add rear fill or a sub with another amp down the road. But now, I have an MB Quart DSC280 (80x2 at 4ohm) and a Planet Audio RX4.400 (100x4 at 4ohm) to be delivered this week. My wife is less than impressed with this turn of events and says I can only keep one and will have to sell the other. My first question is, assuming I follow orders, which amp do I keep. I'm pretty sure the MB Quart …

im off this weekend, everytime im off for the weekend i tow my car to work..... when i got to work i unloaded my car.. and started playin with my audio.... i rolled my h/u volume up to 27... wanged for 30 seconds.. then my subs cut off and a nasty sound came from the comps..... pop my trunk my 3000d is in protection! my sax is fine.. but makin the nasty noise..... i DMM my amp power and check my ohms.... all is good..... i turn my car off flip my breaker into "off" restart my car... ugly noise remains.... flip my breaker back on for my saz... and it plays.... i roll my h/u back up and back into protection..... so the same thing over again but this time keep the …

I currently have my Orion 2500d mounted on the top flat. I pan on putting the 18" on top facing up, and the amp on the side. Will it be ok as far as heating is concered?