Amplifiers / Head Units / Processors / Electrical

Greetings out there. I have read many write ups and seen many videos about using test tones to set your amp gains with an o-scope. My question is when setting bass amp gains does it matter if you use a 40Hz tone over a 50Hz tone? Each topic on this has used a different tone but never told why. For those who dont know.. yes I am a so please inform me if there is a difference. Thanks..

If I'm trying to do a 2 way front stage. With a 3 way crossover that has the hpf 's I need for the Mids and tweeters how would I cut them off where they need to be if I have no controls on the amp for them? Subs are from 25-60. So was going to cross the Mids around 60. And tweeters around 4-5 k ......

I've noticed, the bass tones usually used to set the gains are 0db, but in most rap songs, bass lines are around -7db to -8db... Some are even lower, especially for other genres. I recently used -8db tones on my friend's setup, and it got MUCH louder, this was about 4 weeks ago, and everything is still running fine, subwoofer never even gets warm to the touch. Shouldn't you use -7 to -8db tones for setting RMS power instead of using 0db tones? Because if you think about it, -7 to -8 is the RMS, and 0db would be the "peak" or "max" or whatever you wanna call it (not that it matters). For those wondering, this is the system I set the gains on: Amplifier - Sundown SAZ-1000D …

http://www.gruberpower.com/gruberpower/adv...8-GPS12-270.asp i will have at least 3 or 4 of them. or should i go with the HC kinetiks? these will be powering either two sundown SAZ1500d or one SAZ300d. 4 18" FI SSD stock

Hey everyone i am new to car audio and am planning on doing a big setup. I was planning on getting a 250 amp alt with 2 yellow tops powering 2 audio q 2200 connected with 2 12 inch fi btls. My question is that do i need fuses? If so how big do the fuses have to be? How do i know? Where do i need a fuse the most? THANKS

alright, so i after taking my stock radio out and installing a my alpine deck i am getting a lot of noise. right now i just have the power going to the HU, no speakers no rcas or anything and im still getting the noise. wish i had the money to get my new speakers and amp to get rid of this! would that be a bad ground on the factory amp? here is what im dealing with this is the little factory amp for the speakers Uploaded with ImageShack.us and im not sure what these wires all taped up are for, goes somewhere in the dash that i couldnt follow Uploaded with ImageShack.us heres the 2 connections that plug into it Uploaded with ImageShack.us and this is how it plugs in…

At work we have numerous rtas used to test the frequency responses of circuits. This is tested through an osciloscope input. My question is if I were to find a mic that had an osciloscope conenctor at the end of it would the rta work for what I want it to do?

now i could put it in the trunk or i can take out the passenger air bag, and build a lil custon enclosure for it. Other than that i'm all ears. Just need it so it cant be stolen easily, ie, brake window, take playstation.

I have a us acoustics usx2080 that i got from Audio Clinic off of ebay and it is hooked up to my pioneer premiere 720prs speakers and it just doesn't seem much louder than the radio straight to the speaker. My gain is at about 3/4 which seems kinda high to me but thats where the DMM put it. My HU is an Alpine 9885 and i used a 1000hz wave to set my gain to 17.9 volts. Someone told me it may be an install problem but what kind of install problem could cause this? Wouldn't it be either working or not working? Also, how much louder should this amp be than the HU? Thanks for any help or tips!!!

Can someone please help me with my radio. I put my sundown amp to it, and my radio started to fry!! now theirs no output from my speaker wires from behind radio. (I disconnected amp, and rewired back regular). I tested all wires, and it seems that one speaker output does in fact give a little static. Im guessing I fired the outputs in the radio. Can anyone help me fix this problemo

http://akamaipix.crutchfield.com/products/...HP780-f_dg.jpeg CD player with built-in MOSFET50 amplifier (22 watts RMS/50 peak x 4 channels) slide-down, motorized face with customizable, full-color Organic EL display CD, CD-R, and CD-RW compatible, including discs loaded with MP3, WMA, and AAC files (not compatible with songs downloaded from Apple iTunes Music Store) Supertuner IIID (18 FM/6 AM presets) Digital Sound Processor with 16-band graphic EQ and time alignment Auditory User Interface loudness auxiliary input three sets of 5-volt preamp outputs high-and low-pass filters for improved speaker performance compatible with iPod using Pioneer CD-IB100ii adapter satellite…

One amp produces sound but no matter how loud I turn it up it stays the same.The Other amo turns on but no sound comes through, Anyone know where I can get them fixed.

So I mistakenly order a 4 Gauge and an 8 Gauge kit by accident of CCA from Knu. I was going to do a run of 4 gauge to the sub amp and 8 to the amp for the fronts. The sub amp is a Hifonics BRX2400.1D. Would the 4 Gauge be enough for just this amp?

my friend wants some subs for his dodge ram full cab, hes gettin a pro box for under his seat and 2 re se subs, he doesnt know many amp models and his price range is from 500-700 for everything and the box and subs would be about 350-400, anyone know a decent amp that would be 2 channel and put atleast 600 watts to each speaker and still meet his price range?

Hey guys price quoting around today....will 200 amp HO alt be sufficient for 2 18" Btls running 2 3000d amps? tnks again everyone for the help...will post pics of everything I recieve Freddy

Just like the title says. If my woofer can handle more that what my amp can throw at it, how would I go about setting my gain to absolute max without clipping? If you say you can hear it then please record me a sample and send it to me so I can hear it for sure. Thanks jerry

wire power and ground have other ppl used on the audiopipe 30001d?

ok i'm guessing i can buy it for 400$ the 4000watt one. but is it worth it? i mean how many watts am i going to get out of this thing? If i get this i will have to wait and sell my amp before i even get one of my 18's. So is it worth it?

Do I fit the power and negative cables in and take my voltage meter to the speaker out lets? I cant remember I want to test it with the stock alt wire and ground and see if I can get more power from doing the Big 3. Im sure you will suggest to use it but I want to know how much a difference it made on my truck and post up the results. Mine is a 2500hd duramax so I know I have a higher amp Alt. Plus 2 batteries already

So I plan on getting a battery for in the back soon and I was curious as to if it will hurt my battery in the front by getting an AGM for in the back. Also do I have to go with something that is in the range of power my amps are taking or can I go with something along the lines of a XS Power D545? Roughly with both amps I'll be in the range of over 1800-2200watts rated.

Hey Im thinking of selling my sony xm-5046's but have no clue as to how much theyre worth now. I was wondering whats a reasonable price. anyones opinion with prior knowledge of these amps would be greatly appreciated.

I'm looking at possibly running three 4 ohm subs, which would give me a 1.34 ohm load (of course, you all know this already ). How much power would I lose if using an amp that does its power at 1 ohm?

Hey I was wondering what good cheaper amps (around 300) would run two SSD 10s with copper coils. I have two in the mail right. Do I need to give each 800 watts to be decently loud? Also wondering if will likely need to do any changes to my electrical system. I've tried to see what amperage my alternator puts out but cant find info, so if you know what an '06 Rav4 without tow package does that would help a lot. Otherwise I think I'm gonna call the dealer. Thanks for any help!

Hi all, My question is a daily/Competing question. it has to do with the Street classes in DB drag. in street A they only allow One (1) battery in the stock location. which is fine, for competing and doing the whole burp it and go thing. but with an saz-3000 i feel i will need more than one battery for daily driving and for the other organization im competing in Midwest SPL (no battery restrictions). so my question is what is the best way to do this? safely of course. My initial thought was to have a sort of buss bar for positive and negative (this may get complicated so bear with me). I will run one 2/0 welding cable from the front battery to the trunk Buss bars …

so i have a us amps md1d amp hooked to a ten inch re audio sx. i had it wired to one ohm and a guy that i was talking to said i was probably pushing closer to 1400 watts instead of 1200 watts at 14 volts. is this true?