General Audio

Running four Dc audio 15 level subs off 4 sundown 1500 wired to 1 ohm.with four odessy 2250 and 210 amp altnators The problem i have is that the four subs come out a long way (not meant to do it in a funny style osaltion)When i get to about 152 db on music. I used to be able to bass race at 154.5 but now can't run that loud at all. I switched from running two crown bpx 2200.And made the box bigger to over 20 cubic's after displacment.it was 14 cubic foot after displacment. I am wondering is the problem cause the box is to big. box is tuned to 32 hz. Burps at 45hz and 155.1 with the 20 cubic foot and 154.6 with the 14cubic foot.

well im building my box for 2 15" dc audio XL's and i was winder should i go all out on the box plexi windows and lights or just stick to the basics?

Hi to all, I'm new to the forum and I need info about a new enclosure based on two REaudio sx12 subs, I've thinked about a 4cf tuned to 35hz box 'cause I listen to hipop/rap and r&b kind of music. Can the box be built with mdf light or mdf ultra light material?

I'm looking to put wire connectors to power, ground, and speaker wires to my amps. (RF T6000-4, RF T10001) Just wondering what sizes and types do you recommend? T600-4 power and ground are 4ga., speaker wire is 14ga. T10001 power and ground wire is 1/0ga, speaker wire is 14ga. Or is this a good idea? Maybe just the speaker wire, just looking for opinions.

(1) Alpine SWR1242D (1) MB Quart DSC1000.1 Sub is 4ohms with two voice coils. The amp also has + + - - option. So, should I wire each voice coil separately and voice both sets of + - or wire the vc's together and just use one? Thanks for any advice, I have no idea lol.

Ok, well i just finished installing my btl and i decided to just drill holes in the box to run wires through to my amp and i used silicone to fill in the holes, so my question is how long should i let it set up before i decide to turn it up safely to tune it with out blowing a hole through the silicone? btw for what it matters i live in middle ga. so its really humid all the time plus its been raining last two days, ive heard that will play a factor in its cure time?

Jim Thiel of THIEL Audio was one of the pioneers of American hi-fi, and one of its biggest names, ranking up there with Henry Kloss and Paul Klipsch. Jim co-founded THIEL in Lexington, KY in 1976, and was instrumental in the development of time and phase accurate designs with the use of sloped baffles, coaxial driver mounting, and phase coherent crossover networks. Continue reading Jim Thiel 1947-2009 View the full article

For the masses Before its asked ..... mic is TL obviously, placed on the glass, sealed up. 3/4 volume on a single 5k at .5ohm. 5 batts and 220amp alt. Out of a trunk!

dude is asking 190 that include the box. the amp i have right now is a alpine m850 750rms@2ohm,500rms@4ohm. think it can push the sub? or should i just buy a 10 or 12 RL-i sub?

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

so im going to be buying 2 Fi bl's 12". im thinking 2.5 cubes per a sub since there gonna be runnin off a single aq2200d amp. so what should i do about the port. im thinking around 70 sq" of port which would be 4.6 inches wide. what are ur suggestions for a box that would run this set up well?

I was wondering if anyone had any experience with Planet Audio, in particular the Big Bang line of amps. I've heard mixed opinions but for some reason the aesthetic's intrigue me. also.... I'm gonna be adding an additional battery to two different installs with similar power requirements and I wanted to know if anyone knew of a good isolator for a decent price (hence my username) thanks

i done a search and both of these will fit my truck, but i am curious whats the difference (besides dual posts) i mean do i need just the standard one or the dual post?... is one better or what? need to upgrade my battery before i install my setup,Thanks http://www.amazon.com/dp/B000AMDDBQ/ref=asc_df_B000AMDDBQ891674?smid=ATVPDKIKX0DER&tag=googlecom09c9-20&linkCode=asn&creative=380341&creativeASIN=B000AMDDBQ http://www.amazon.com/dp/B000MSBUA4/ref=asc_df_B000MSBUA4891674?smid=ATVPDKIKX0DER&tag=googlecom09c9-20&linkCode=asn&creative=380341&creativeASIN=B000MSBUA4

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…

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

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.

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?

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

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…

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!!!

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.

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