Amplifiers / Head Units / Processors / Electrical

so i was sayin how the sub was making a knocking sound(bottoming out). so i decided to perform an experiment. i setup a -6db 50hz test tone put my radio at volume 35(70%) and i tuned the gain to put out 31.62 volts, which is 1000 watts. next i put in the removed the test tone cd and put the song that made the knocking sound in. looking at the volt meter some parts of the song would jump to over 40volts thats like 1600 watts, now i see why the sub was knocking, obviously that is a clipped signal. why is this happening? if i set my amp with a DMM with a test tone why am i getting a huge signal when i play a song. doesnt make sense and also makes the DMM method for setting g…

ok so the more and more i keep reading how amps have this now and how you need it if you have a ported box.....which is what i have and i know that my sub amp now DOESNT have one so my question is am i losing bass or quality or anything like that by not having the SSF???

Well, a friend told me the other night he had some amps sitting around that he has never used really, so I asked him what he had and he replied with, "power acoustik stuff." Now, I was a little skeptical at first but I decided to look anyways. Well, come to find out one of the amps he had sitting around was a PA A2400DB so I jumped on that. He only wants 200 for it and it comes with original box, packaging, the works. Hooked it up to my Ti and MAN does it make a world of difference having this over my old amp. The Ti is really showing its true colors with this amp. My ears are starting to hurt now that I've been driving around with it. It's also nice to have a SSF o…

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?).

im deciding between these two decks for awhile now and i wanted to know who has which and what they like about it. I can get the x889 for $218 or i could pay an extra $100 and get the pio 860mp.Now ive heard that the pio is alot easier to use and might have a better eq and other stuff but is it better then the x889 and worth the extra $100???

ok so after ummm alot of reading im either looking at the nine.1 or the hifonics bx2005 or bxi2006(ok 3)...but im not sure i have the up to keep electrical system to get all the power from the nine.1 or the hifonics for that matter.so i guess my question is that which amp would be better and how could i make sure that my electrical system will be up to par once i get either or???

I have a JL 500/1 amp going to 2 memphis 10s. When we first installed every thing sounded great and plently of power. After a few days the amp went down on power and under cold start up it makes a buzzing or hissing noise from the amp. When the subs hit it goes away for a second , but it comes right back. at first it was making the noise for a few minites ,but know it is like 5 minintes after the start up. Does any body know what the noise is or why it doesn't have the power it used to??

would love to have this power the 300ce system http://www.rockfordfosgate.com/products/pr...55&locale=en_US

Ok, im looking for a head unit that is vibration resistant, clean output, good looking (matching my interior, ill post pics if i am asked), plays MP3's and WMA's preferably (so i can keep one CD in for 3-4Hr drives), and i would like an RCA in too but that isnt required. I only need 2 sets of RCA's. I would like pause as well (if i ever want to compeate bass race it would be nice) Im getting a $139 refund from Ikes Sound for the DEI1100D (its good because i paid $70 for the amp, send 29 to get it repaired. Im basically making $40) and soon ill have around $100 from my parents, maybe more if i score awsome on the ACT (lol). so my budget is around $240 and the above is what…

http://www.soundstream.com/amplifiers-reference.html

ok so i was still looking at buying a sub amp and i started talking to this guy that said he has a audiobahn A18001DT brand new in the box that he will sell me for $200....does that sound like a pretty good deal?,it sounds like one to me i just dont know alot about that amp.i know this amp retailed pretty high and everything but i wanted you guys opinion on this before i do it.

Seeing that my battery is the original and 15 yrs old, I am going to replace it whether or not there is a draw on my system. Discharging to nothing about 10 times in the past weeks I am sure will be the cue de'gra. Being it is an underseat battery I am limited to 6.75" or so in height which leaves me three options (unless you give me more): 1) A replacement from the stealer $130 2) An Interstate battery for $90 http://www.interstatebatteries.com/Batteri...Line_MTP-93.htm 3) An Optima for $130'ish but it will have to be laid down. My gut says that the Interstate is just as good as the Optima other than not being sealed. Having to lay the Optima down scares me a bit as w…

[email protected] My wife has an Ipod Nano, and also a Alpine CDA-9856, so she wants to use her new toy in my truck. I have the Pioneer DEHP-7700MP. Does the Pioneer AUX CDRB10 works good? And if so What else do I need? Thanks.

no more star trek >>> http://www.precisionpower.com/amps/a1000-2.asp

Hey, I was running wires etc today and I decided to just make sure everything worked alright before I got my box built. So the amp turns on and appears to be fine (it isnt in protect mode) but the subs only hiss. It seems like they are moving a little bit but I dont hear any sound except for white noise. My rca's probably arent the best *rockford fosgates* but they should work and for the ground I sanded a patch in the trunk and screwed it down. The amps manual says that white noise is caused by the amps settings but I turned them all in different ways and still nothing. btw I have a hifonics brutus 1606d and 2 12" soundsplinter rlps and a pioneer premier 6700 any ideas?

Guess what new toy is replacing my Eclipse 8443...................................................... an Eclipse 8454!!! And it only cost me 214$ after tax!!!!! Its was such a steal. From the dealer and everything! I took advantage of a chain getting rid of Eclipse and asked if they had any more HU's available. He was like yeah I got a 8454 that is open box used in a window display(not an actual one where people touched it) and was like i can sell it for 200$. I was like, here's my card!

Did you know that of all places Circuit City is now stocking Eclpise?? I have just gotten and installed the CD-3000 and I do have to say it is VERY nice for the money. Not a ton of features that you dont need but it seems to have good clean sound. Nice 5v constant outputs from the pre-amp. A few built in EQ's and a somewhat OK cross-over. It playes MP3's ect and has a pretty nice display! I would love to see the CD-7000 in action. Then again.. I dont need navagation! Good day all!

I need some help. I am wonfering how many watts the crossfire tek 150.2 amp is. I woud truly aprecite the help.

Since this thing wont allow me to start a topic in the For Sale forum.. I`ll post this here! ~ Unfortunately you're not allowed to post this in the FS forum for a reason, therefore posting it in one of the main boards won't work either. "-While we welcome new members, for the safety of our established members, we restrict new members' access to this forum to replying for purchases only. Once you have become an established and contributing member, you will be granted full access to this forum {An example of the guidelines we will be using would be at least 25 contributing posts, outside of the For Sale Forum} *** Please Note: 25 posts is merely a guideline -- Posting will …

just read up on the PG site and the Xenons are discontinued, and so goes the XeLoad with the flexiable 1-4ohm stability with similar output, suprised they are going this way, seems as if the Xenon was the step between the Titanium and the Tantrum, and now they are dropping it, so the new Rsd line is taking the place of the Xenon and none are ratted to be 1 ohm stable, what is going on, PG has always been a company with a top end line to aspire to have, now I am not so sure and this goes for the subs and components too, are they down grading to stay afloat and jumping on the F&F bandwagon?

ok so i need a good 4channel for my cdt-ef61fg comps and my pioneer 6x9s in the back so i need a decent amount of power.i was looking at the pg xenon 200.4 or maybe the jbl gto 75.4 but im not sure,do you guys have any other suggestions about some good amps for under $250???? right now i have a crappy alpine mrp-240...(40x4) and the comps kinda sound flat so i need something to bump them up to par....

I have been thinking that I want a pretty decent size (1000WRMS) maybe up to 1500 but I want a Mono block amp that will do a 1 ohm load and like it! Would this amp meet this criteria! It says 1200W RMS and I have heard some decent stuff on these amps but not enough to know if they have the Power they say! Specs say http://edesignaudio.com/product.php?cid=4&pid=6&cur=USD see here for yourself! I like the look too! Kinda hip and says play me loud! <p> But yeah so who has one or has messed around with these bad boys! Good price too for a new amp! $320 from a neighbor! What ya'll thinkin? Get it or pass? Dont absolutely need it but want it cuz need a new project…

Basically, I am contemplating the carputer idea heavily and will be looking for ideas as far as EQing and setting the system up. I want it headunitless, so an external unit is needed. Is there something out that has all the features of an active type of headunit? (think TA etc...) Any ideas post them up, the carputer is only in the early stages but I will be putting everything together in pieces. Help me out here

I know how to set the gains with a DMM by reading the sticky post by im confused on 2 things 1)when setting a 4 channel amp with 2 gains(1 for each 2 channels)how do you get each gain?my amp puts out 75w x 4(@ 4ohm) 2)When it said if ur amp puts out more watts than ur subs can handle use the watts of the subs instead.so lets just say a amp is 1500w @ 2ohm and the subs is 600w each so do i add the watts of the subs and find the square root of them then measure the volts?(For example 600w x 2ohm =1200-squarerooted = 34.6v)

I figured this is a great place to post this. Anyways. . . My current occupation involves a great portion of the automotive electrical field. I have access to a myriad of 24V alts, and I'm wondering how feasible it would be to make some 24V amps. I would love to have half the current draw, but I don't know about the 24V electronics and interference between them and the 12V system the other accessories would run on. I have a guy I'm coordinating with right now on the amplifiers, but I'd like to get some more input. Thanks!