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Posted on Jan 02, 2017
Remember that driving a load with an underpowered amp will probably cause more problems than having a more powerful amp that is not running flat out. 200-300W amp would be ok, but I would suggest going for the biggest you can afford. If you crank up the volume on the smaller amp you will probably get a fair amount of distortion, which may actually damage the speakers. A larger amp will not give as much distortion for the same loudness/volume and give better control of the speakers for a tighter bass..
Posted on Nov 21, 2007
Also- get a voltmeter to check the ohms on your speakers before hooking them up. If you want extra power, and your amp can handle it, you can wire the subs down or in parallel. This is where the voltmeter is needed. check your amps rating and match it closely. For instance if your amp can handle 2ohms mono. You would wire two (single voice coil) 4ohm subs in parallel, and connect that to the amp. But if you have dual voice coil subs you will need to wire the subs differently. For dual 2ohm subs each sub would first be wired (with a thick speaker wire). Take one positive pole on the sub and wire it to the negitive pole of the opposite voice coil. Which should leave a positive from one voice coil and a negitive from the other. With a dual 2ohm subs you will see 4ohms, and with dual 4ohm subs you will see 8ohms and so on. Once you have one sub done you need wire the two subs together and use the same procedure (as if each sub is a voice coil) to determine the overall load on the amp. Your amps Ohm rating will determine which way to wire your subs. Example- If you have dual 4ohm voice coils and your amp will handle a mono 1ohm load. It will put out much more power at 1ohm than if you wired them to a 8ohm load. In fact the power output is determined by resistance (ohms). Except a few amps like JL Audio, most amps will follw this rule. A 100 watt amp that is rated at 100 watts at 8ohms mono, and is capable of a 1/2 ohm mono load (very important). Will double it's output everytime you drop the ohm load in half. i.e.-
8ohms=100watts (all numbers are mono ratings)
THIS INFORMATION SHOULD BE USED ONLY WHEN YOU ARE ABSOLUTLY SURE YOUR AMP IS RATED TO THE OHM LOAD YOU GIVE IT OR IT WILL BLOW UP!!!!!!!
I won my first SPL competition using this formula. I entered a 150x2watt amp class and wired my amp down to a 1/2ohm mono load thus making a 150x2 amp push 1200watts! (I used 2 - dual 2ohm voice coil 15" CV Strokers wired in parallel.)
PLEASE BE CAREFULL!!! there are only a few amps I know of that can do that and survive. The only other downfall (besides reliability, heat, and warranties) is there will be a corresponding drop in sound quality. This begins a whole other subject so I will just say this. This drop in sound quality is sometimes not noticed due to the nature of subwoofers (especially in cars). I hope this adds to the above info and further answers your question. For extra info please contact me @ email@example.com thanx.
Posted on Mar 26, 2009
SOURCE: need wiring diagram for sub
u should have two pos, an two neg. on the back of the sub run a wire from one pos to the other same with neg. now just run a pos an neg from the box to one side of the sub u should have one side with two wires runing to the pos. an neg. if u need more help let me know firstname.lastname@example.org
Posted on Oct 05, 2009
you can run each sub at either 4ohms or 1ohm which means that two of them will run at either 2ohms or .5ohms....be careful how you wire them because most amps cannot handle .5ohms very well and might blow.....to wire them for 2ohms you will need to wire each sub the following way. they have two voice coils make a jumper wire connecting the negative on one coil to the positive on the other coil. what you are left with is a coil with an open positive and the other coil has an open negative. when both subs are wired like this connect the two positive terminals together (1 from each sub) and the two negative terminals together (1 from each sub) now the subs should be wired together at a 2ohm load. run the two positive wires into another combined wire which will run to the positive speaker terminal on the amp. do the same for the negatives
Posted on Nov 14, 2009
Is your gain all the way up? If it done this before, sounds like your over working the amp. Make sure your subs ohm load is capable with the amp load to. If they are 1 ohm and your amp is only 2 ohm stable, it would beat for a lil bit then go into protection mode to. Check your wires too.
Posted on May 13, 2010
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