Need help matching subs with an amp

sleeper4bngr · Sep 20, 2009

Hey guys, I am a super noob when it comes to sound and audio. I have never owned a system and until recently never really looked into getting a system for my car. Well a friend of mine handed me over 2 10' subs in a box for free and I now I want to get an amp to power them and hook them up. They each hold 100 watts RMS and have a 4 ohm impedance, and with all the research I've been doing, I still need help combining the perfect amp with them. I've been looking at a lot of 2-channel amps that I can bridge together but I'm not exactly sure what capacity I should look for, or any features or specs that I should be mindful of. I want to set this system up and run it for a while b4 O upgrade to something a little beefier. Thanks guys and any info would be greatly appreciated.

eggyhustles · Sep 20, 2009

dual 4 or single 4

100 watts is super low power handling for subs...

sleeper4bngr · Sep 20, 2009

when looking for my amp, should I look for 100 watts rms bridged? or each line (bridged 200)?

xx24xx · Sep 20, 2009

What's your budget?

sleeper4bngr · Sep 20, 2009

I would like to not go over 100, if possible. If you recommend something above my budget, still please let me know so I can consider rethinking my approach. As I said before, I'm a noob and don't know everything needed.

eggyhustles · Sep 21, 2009

mono(1 channel) amp is what u need. i need to know the ohm config of the subs though

xx24xx · Sep 21, 2009

You might be able to find something in Walmart. Check ebay too. Look for Crunch, JBL or Hifonics.

You should plug the sub's speaker terminals into a wall plug to make sure the subs still work. :chucklesfawk:

sleeper4bngr · Sep 21, 2009

eggyhustles said:
mono(1 channel) amp is what u need. i need to know the ohm config of the subs though

The impedance is 4 ohms and its so hard to find a mono amp with such low capacity as 100 or even close, the lowest ive been able to find is like 300w RMS. If I run an amp of that size low enough as to not blow the subs, won't there be long term damage done to amp? That's what ive been told.

xx24xx said:
You might be able to find something in Walmart. Check ebay too. Look for Crunch, JBL or Hifonics.

You should plug the sub's speaker terminals into a wall plug to make sure the subs still work.

I know they still work and thanks for the help.

eggyhustles · Sep 21, 2009

Single 4 OR dual 4?

ryan s · Sep 21, 2009

if theyre single 4s, you have a couple options http://www.the12volt.com/caraudio/woofer_configurations.asp?Q=2&I=41

what kind are these subs, anyway? 100w each doesnt seem like theyd take a lot of extra power.

you could run them bridged for an 8 ohm load to an amp making ~400rms. or, you could bridge them for a 2 ohm load on an amp making ~300rms @ 2 (but make sure its 2 ohm stable). or, you could run each speaker in stereo to an amp making ~150x2 @ 4 ohms stereo or mono. my 400 x 1 @ 4 amp makes 100 x 2 at the same impedance, to give you an idea.

if i were in your shoes, id try to locate something like a factory refurbished infinity/jbl amp on ebay since they come with a warranty. actually...if i were you...i would be looking for a better sub(s) and NOT buy an amp for ****ty subs unless i was planning on moving it to the front stage eventually :hide: