Amplifiers / Head Units / Processors / Electrical

Basically I cannot get any pre-out voltage from the HU for the sub-out. With volume all the way up on a 50hz tone pre-out voltage is ~.69 (tested directly at the HU). Put the leads on the mid output... .69 as well. Put on a 1khz test tone.. DMM on mid outputs... 3.69... on sub with 1khz.. 3.69. So basically I'm pretty sure nothing is wrong with the actual pre-outs but I am missing an option or control on the HU completly. I have the Subwoofer set to +15 and it's set on Subwoofer system 1. The Crossover and PEQ don't have the level turned down on the sub... so I am

Anybody using/have used this xover? Pros, cons, noise issues? As a now I'm running an Audio Control DQXS to cross my bass mids and tweets. My plan is to add the HK3X into the mix to bandpass the midbass and continue to let the DQXS handle the subs midrange and tweets.

I think that the rca's might possibly be going bad on my pioneer DEH P6400. I am wanting to replace it but i dont want to buy a crappy one. what do u recommend that fits my budget of $200-$250? I prefer the look of flip down faces i dont really like seeing a cd slot in the face.And maybe a remote like my pioneer has

well, I just replaced the alpine 7949 I bought I now have sony cdx-c90 coming... don't think I can do much better than this

I have a JBL BP1200.1 powering a rl P-12. From battery to amp is about 9 ft and ground is about 4 ft. The amp's plug looks like its for a 4ga. Should single 4ga runs be sufficient? if so, who wants to buy some 1/0 and sell me 9 ft of 4ga??? (from the old setup)

hi, i have an alpine 9887 hu and also a sax100.4 and a 100.2 and here is what i want to do. an active front stage using the sax100.4 as the processor not the 9887 and have 2 eu700 in the back off of the sax100.2 with a 400 hz lpf for midbass ( already have them so no changing of that) and i need to know would i set the crossovers on the 9887 as a 2.2 3way or a 4.2 system since u have to take out the unit and move the slide i would rather ask then experiment since it is a pita to take out the head unit in my car. and also would it be a l=r or l/r and also i am going to be having subs too that is why the lpf is kinda of high.

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?

i plan on running 2 12" fi q or ssa icon subs in a 4cf ported enclosure tuned to 28hz. my car is running a minibattery upfront (to clear upper intercooler pipes), an optima yellowtop (extended battery, not standard), 2 1 farad caps, big 3 upgrade, and a 180amp iraggi alternator. the amp im currently using is a mtx 1501d (1500watts @ 1 ohm). here are my concerns: 1) would it be worth it to upgrade to an amp that is around 2500watts? 2) how many watts can my current electrical system handle? 3) will i be able to run an amp around 2500watts and another one for mids and highs around 200-300watts? 4) what amp would you guys recommend (looking to spend $800 or less)? so far…

So I've done some research and lots of reviews and people all point to Alpine. I would basically like to know what would be better for me, a 9885 or a 9887? Mostly I'll be using my iPod for the music source, but occasionally I'd play CD's or a friends CD. I drive a 1990 Honda (Yes I know really old) and basically I'm just upgrading my sound system; new speakers and a sub will come with this. But I would like some imput from a 9885/9887 user or ex user and if it's the right choice for me. Also, what is the big difference between the 9885 and 9887 for a 50 dollar difference? Thanks

What size alternator would I need to run 2 US Amps AX-3200DE, and 2 AX-TU600C Amps? Should I run Dual Alternators?

Someone told me that one of the usamps line of amplifiers lie about there actual wattage they are putting out. is this true, if so which series of there amplifier is this?

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

One of the big things that changed while I was gone from car audio is the 4volt plus rca outputs from head units. My situation is I really want to use an Alpine 7904s or 7903s as my source. These units do not have high voltage line outs but can an Audiocontrol Three.1 fix that for me or is there a better way? Pre-Amp Line Driver: Amplifiers require a high voltage input signal (generally 2 to 5 volts) to operate with maximum dynamic range and the best signal-to-noise ratio. On the other hand, typical source units only produce 1 to 2 volts, if your lucky. In a system where the source unit is located in the front of the car and the amplifier(s) are located in the rear, the…

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've seen the outside, but never the inside looks like something out of a science fiction movie

do you think the US AMPS xt4000d is a good amp for a fully loaded 1 ohm 18 FI bl?

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I'm currently in the process of designing/setting up my first system. I currently have a pioneer deh-p690ub head unit but haven't been able to figure out all of its features yet. Can i have an active front stage with this headunit? I have a set of focal 6.5 V2 polyglass components, not installed, but i'm thinking about returning them to tweeter because after browsing through the threads here I'm sure i can get a better front stage for the money. Any input would be helpful, thanks.

I need a nice sound quality amp that will get crazy loud and sound good doing it too. i am building a wall in my mountaineer. i was thinking a t8004 or t15004 by rockford. it does not have to be the best damn sound quality but something decent. any suggestions?

Hello everyone. I am having a problem with my amp and i am not sure why. I am running 2 in phase XT's (XTB212) http://www.inphaseaudio.co.uk/xt-range.php...;products_id=49 2 ohms X 2 1400 watts each about (900 RMS) I am running it off a 1800W Kenwood mono block amp http://caraudiosecurity.com/shop/product/p...ts_id/5745.html wired in parallel (1 ohms) but after i turn the volume up to a point BOTH the 30A fuses on the amp blows i used to run these subs at 4 ohms and they worked fine but at 1 ohms they are like 2X better so any idea's why i blow fuses at 1 ohms.... i am quite sure my amp is 1ohm stable.. i also have a distribution block to run my 2nd 2 channel amp (400watt…

as the title says I need a downloadable users manual for the cda-7949. Alpine doesn't have them or pac parts. I'd be glad to pay for copied one of you have it. All help appreciated. Thanks, Joe. P

hello right now i have a jl 1000/1 powering a 18" bl..i'm thinking about switching to a kicker zx1500.1 what do you guys think? i was impressed with the jl but i feel it could use more power, plus the jl chit out on me after a couple months so i kinda wanna sell it after it gets fixed/replaced under warranty...what do you guys think?

I have 2 Hifonics BXI2607's and I noticed earlier today while listening to my system that one of the amps is making a rattling, buzzing noise when the bass hits. It only does it on the higher frequencies which do not hit that hard, the lower frequencies which are louder and hit harder the amp does not make any noise. The noise is coming from the RCA area of the amp. It is not the amp that I have running to the HU, it is the amp that I used a jumper RCA to hook up. I noticed that the amp does not make the noise until I get the volume up to 20/35 on the HU and gets louder as I increase the volume. I did not even notice it until I was in the back close to the amp, I thought …

hello, i recently got 2 alpine type r's professionally installed in my trunk with a kicker 1000.1 mono amp. It was blasting nd bumping for about 2 weeks then i realized that they needed to be mounted because they moved around too much. I got them mounted and they started to make a strange noise. I took it to the installed nd they "fixed" it by fixing the ground substance or whatever....I turned the car on and the noise is still there. I took out the "phone line wire" from the amp and it still makes the noise, the installer said it was probably something wrong with the amp but im not too sure... the subs make a loud croaking nd buzzing sound even when i have them set at 0.…

I'm not familiar with them, I see some are JBL also. Someone has a reference 2x75rms that is pretty new and wondering if they suck, so on a scale of 1 to 10 how good are they? Or should I say scale of Pyramid power booster to McIntosh...lol. I just need in the middle or better.