QuestionHi,
I plan on getting this Orion 10" subwoofer. http://www.cbrstereo.com/index.asp?PageAction=VIEWPROD&ProdID=462
I can either get the 4ohm or 2ohm version. Which do you think would be the best subwoofer to go along with this amp that I have?
http://www.sonicelectronix.com/item_7150.html
Thank you.
AnswerHi! this is very interesting because I was reading posts from others here at allexperts.com and there was a very similar question posted to jerry Mael asking about matching 2 of these same subs to 1 of these same amps. The link to the amp is even the same link. I read his responce and actually thought to myself that I would love to have a chance to answer for you on this. I'm going to assume you are the same guy who asked him. I think Jerry is extreamly knowledgable (I would openly admit more knowledgable than I) and although his reponce had alot of information in it, there wasnt much information that helped you. and comments like:
"To that I say, yes, but you can make you nails bleed if you cut them off too short, too."
Doesnt help anyone. People come to this site for help and a volenteer could be the smartest person in the world but if you dont get your answer then what good is the volenteer?
ANWAY!!! I give Jerry some credit when he said "I do not think you are going after any SPL records with a pair of nice 10's and an amp, so I will answer accordingly. "
So to do what I think he should've done I will ask what is your application? Do you want to be heard from a block away and you dont care what it sounds like? do you want to be able to enjoy music, if so which types?
(again if you werent the guy who wrote the first post I apologize but it's just so close I have to assume) In your post to Jerry you said you had alread gotten 2 of these but in the question to me you said you want to get 1. well here's the text book answer:
Take the amount of watts that the manufacturer recomends the speakers to get. in this case 2000 each and get an amp that puts out as close to that number as possible for the ohms the speaker is. calculate the impedance as follows:
hooking up in parallel: divide the number of coils by the ohms of one coil ( 4 coils 4 ohms = 1 ohm) (2 coils 4 ohms = 2 ohms)
hooking up in series, multiply the number of coils by the ohms of one coil (4 coils 4 ohms = 16 ohms) (2 coils 4 ohms = 8 ohms)
if there are combinations of seires and parallel you are just forming groups so use the same method when hooking each group together.
Do the calculation above and get an amp that puts out the wattage at that ohms. Dont forget to increase the wattage by how many speakers there will be (2000 watts each means that if you have 8 of these you will want 16000 watts (rediculouse but I'm giving you the textbook answer here)
it looks like the 4 ohm version using this amp would pull 2100 watts from this amp (if the amp actually puts out what it says, the amp is rated for 2100 when the input voltage from the alternator is 14.4 so you arent going to get that, you may get 1800 or so at full tilt)
That was the text book answer but if you want the more logical answer:
In a way I agree with Jerry. putting 2000 watts into a single 10" sub is just about pointless. you'd get alot better sound putting 500 watts into a 15" sub. Maybe there's some reason you have picked this particular scenario and if so please let me know. but for a 200$ sub you could get something much better and drive it with a smaller, cheaper amp. Wattage cant compete for displacment! 1 15 will be at least as loud as 3 of these 10s and with alot less power. What you're trying to do is like runing a 10 HP go-cart faster by putting nitro in it when you could just get a car with 150 hp and leave the go-cart in the dust.
hope this helps!
