General Audio

So I have been doing the car stereo thing for about 6 years, even having won several competitions but have never even considered impedance rise when building cabinets and I just wanted to get some info on this phenomena. I understand that it boils down to the size/shape/style of the box and any obstructions such as wires, braces, etc. 1. how can I test my setup to find my impedance rise? 2. can impedance rise be combated by wiring below rated amplifier impedance? 3. are there any build orientations that are more resistant to this? (sub/port firing back; sub firing up/port back; etc.) I am installing in a 2004 pontiac grand prix and a 2008 ford escape, any info will be gre…

just kinda curious what yall use to mount your subs, ive used mostly just wood screws but was wondering what other recommendations were? Thanks

Instead of ordering a 8 gauge speaker terminal, waiting for it to get here then cutting a hole in my box and screwing that in.. Could I just get 2 bolts and 2 washers and screw those into my box and use those as a positive and negative post? Any tips or experiences with this? edit: im still a noob when it comes to little stuff like this, the only reason I ask is I have seen something similar done on this site.

A few weeks ago, I noticed my sub randomly get quiet and loud back and forth ONLY while driving. When I'm at a red light or stopped for any reason, it plays a lot quieter than it should be (literally half the volume that it is when it's loud). When I accelerate, it goes back to normal temporarily. For a few days, it did the opposite. When I braked, it got loud, and when I accelerated it got quiet. This has been driving my crazy. I checked my wire connections at my amp and they were fine. I had autozone check my battery and alternator and they were good. I even checked the voltage myself on my battery and it was fine. They are both stock by the way. 1 more thing I noticed …

System I am planning to power. Sundown SAZ-1500D Sundown SAX-100.4D I have a 08 Hyundai Elantra and unfortunately I am hard time finding a reliable high output alternator. My vehicle has a factory 90 amp alternator. I am contacting Mr.Alternator to see what my options are. Any suggestions? I am thinking about using a Kinetik HC 1400 as the primary battery and a Kinetik HC 600 in the trunk near the amps. What size battery isolator should I use? Where should I put the battery isolator? What gauge wire should I use between batteries and isolator? BTW I plan on using all Stinger power wires, connectors and battery isolator. Thanks

Ok, first of all, whats the most impressive system that you've seen, in terms of small. Like didnt thumper's 10"s do like 141 db? Along the likes of small subs getting loud, or really loud single sub systems... And the other thing, my friend is asking me about the "G's" of some subs... What the hell? He could be dumb enough to be talking about gravity... well, i come back to him saying "Gs?" and he says "Exactly u don't kno nothing about speakers... Every speaker has g-forces or it wuldnt play..." then the rant began.... bah haha

i gotta guy wanting me to a build for him in his 73' caprice convertible and i need some suggestions! he wants to go big but he doesn't like ported boxes for some odd reason. now he's seen my other builds and he expects it to be as loud as those. i might be able to convince him to go ported but it really has to slam. here's the catch, it all has to be in the trunk! but the good news is he has an open wallet. im thinkin 8-12" sa's and about 12000 watts rms. any suggestions out there?

I have A 97 Jeep Grand Cherokee I hooked up a head unit I get sound from it from all the doors and hooked up a amp I thought properly but I was sounding nice the first day then the next mourning I turned it on and I didnt hear any subwoofers the speakers are good I hooked them up to a different system and they worked .I'm so confused I wonder if I have some door speakers crossed and thats stoping it I hooked up at least twelve amps and changed everything that I can change and still no sound ????The only other thing that I can think off to get sound is to hook up a RCA inverter well thats what i think well what do you all think? please help

My dad was looking to buy me a sound system for my birthday, i am looking around, he immideatily eliminated the idea of a subwoofer, so now i have a head unit and new speakers, and an amp (if necessary). I drive a 2004 jeep grand cherokee. I was going to buy with him today, Alpine CDA9886, 1 Alpine SPX-13 REF component set, 1 Alpine SPX-17 REF component set, and to power those speakers i was going to use a autotek SM4-800. I was wondering if this set up would be good, and if the amp would be adequate power for the speakers, i think it goes 100x4 @ 4 ohms.

http://www.amazon.com/gp/product/B0006HJQW0/ref=olp_product_details?ie=UTF8&me=&seller= will this o scope work good to set the gains on my amp?

Yes i putting the finishing touches on my system thanks to all of the ssa members my question is this will a eq do any good for my system or is it just a waste of money i need the pros and cons. Also my final question is the pros and cons of not having any rear deck speakers i was to by some members to get rid of them which i did i can tell the difference but is that the right move. Thanks for all of your help and support and lets countuine to help and support each other

Where can I find some test tones from 20-30hz. I have the 20 hzand 30hz test tones from ROE, but I want all the inbetween (21, 22, 23, etc...) Can some one help me? This is for my HT sub system. Thanks!!!

ok here's what i'll be running 2 HDC3 12's (copper series) on 2 aq2200d amps and ill have one deka intimidator 9a31 on each amp. so will this amp kit work? also will i need two of them since im hookin up 2 amps to two different batteries? http://www.knukonceptz.com/productDetail.cfm?prodID=KFX-PK0 and then these wires to hook the sub up to the amp? http://www.knukonceptz.com/productDetail.cfm?prodID=KAR08SS thanks!

Will box a give me same results like box B ? Does it matter if sub is placed up, or on the side ?

do u use to hook the amp up to the sub? can somebody show me a link or something to where i can buy it? and is this amp kit good? and would i need two of them since im hookin up 2 amps to two diff batteries? http://www.knukonceptz.com/productDetail.cfm?prodID=KFX-PK0 if so what inline fuse should i get and what fuse block? im gonna be running 2 aq HDC3 12's on 2 aq2200d amps.

I'm about to step in and start editing some more music for custom purposes for car audio and want to know what frequency range i should focus on? This project will mainly be focused on older 70s-80s rock that had no bass hardly. I want to bring out frequencies that just didn't audibly exist before. I've done this before a while back and some people have the custom 16 min Pink floyd track i did but now i want to do this... So, what frequency to you is LOWWWWwwww? i can bring it out all the way to 1hz but there comes a point to where it's too low so i need to know how low is too low really. Anyone who listens to these tracks can mainly only benefit from it from a setup whe…

Whats up all! I am about to purchase build new system and I am starting with the low end. I want great sound quality, reliability and lots of output! Big 3 (Optima 750CCA and factory 90amp alternator) Alpine CDA-9887 Alumapro Cap5 V2 I dont know which amp yet but I have it narrowed down to these two choices Sundown SAZ-1500D US Amps 400DE I think I am going with one 15" subwoofer and I have narrowed it down to these three choices RE SX15 Fi BTL 15 SSA XCON 15D2 What amp and sub combo do you think would be best? All three subs seem great and both amps are excellent, any advice?

I have always wondered about some of the lingo used on these forums when it comes in competitions... Anyway what is a Bass Race vs a dB drag? Or a SQ event? How are they measured? I am sure I missed a few different race names but what are they? How are they all different? How are they measured?

could 2 kinetik HC1800 batts run 2 audioque HDC3 12's on 2 audioque 2200d amp? or would it be to little power?

how much are they and can i buy them online?

Has anyone messed with the SHURiKEN SK-BT120 batteries? it says it 120 AH and 2600 cranking amps an AGM for 270.00 to good to be true? i know Sonic Electronix is good, seeing how i've dealed with them before. but the battery is what im worried about.

wus up everyone im trying to uograde my pollk db to something better but at the same time wont kill my pockets i got rid of my 6x9 some i need better image and stronger power so i need them to cover the whole car any suggestions is greatly appreciated Thanks Mr crown89 .

Thank you so much bud for your very generous donation! Just to inform everyone, Gfronty sent me a bass knob and cord from New York all the way down to Texas for O, ZIP, NADA, ZERO! I couldn't believe it.....he didn't even let me pay him for the shipping, now thats why Im a proud to be a part of SSA. And to think of how bad the economy is, people still go way out of there way to help out others, so "THANK YOU SO MUCH GFRONTY!"

Can someone recommend a decent program that tells me what Hz bass is contained in song? Preferably freeware I've looked at a few through google searches but they either don't tell me the Hz accurately, say the wrong Hz or dont make sense eg. Spectra Scope / oscillometerxz / Graphic Equalizer 09 / SpectraPlus any help appreciated!!

I was wondering do yall use the loud button on the head unit??? also what is it for?? i know when i push the button the speaker thump harder and the little speaker sound more louder.