whats the difference of 4 ohms and 8 ohms? Im getting a hartke ha2500 and am looking for a good 2x10 cabinet that has a good low end sound and punch
515887
Hi Robert, Without getting too technical, the impedance is a measure of how electricity behaves (or is restricted/resisted in a signal path) with regards to speakers and amps. In this SA-210 @ 4&#937;, we have two 8&#937; speakers wired together in parallel, creating the overall 4&#937; load for the cabinet or enclosure. I have taken a look at the Hartke HA2500 and based on their specifications I can only assume that the 250W @ 4&#937; they have listed is a Peak measurement. This would put the Hartke Model 2500 at about 125W RMS @ 4&#937; (I am speculating here since this measurement is not listed). Being that the SA-210 is rated at 400W RMS @ 4&#937;, you will be underpowering this cabinet. The tendency when underpowering is to boost the signal, which in turn could cause you to clip, and eventually "blow" the speakers. The ideal rating for the amp to push the SA-210 would be 600W RMS @ 4&#937;, or 1.5 times the RMS value of the speaker. Having said all that, you can use the Hartke to power the SA-210, but you must be careful not to clip your signal. Let us know if you have any questions. Thanks, Rusty
515888
The ohmage output of your amp has to match the ohmage of your speakers or you will not get the best sound and will more than likely burn out your amp. Ohms are the impedance levels. In the case of speakers, the lower the impedance the more wattage they will handle. I'm no elec. engineer so that's a laymans summary for you. For bass, I have always preferred 4 ohms which is what most all ampeg bass amps have been since the 70's.
116398
these are a 4ohm but it will still work. the speakers will only get 4ohms. It will be much clearer sound. be sure to get the polarities correct. you will have good power at low volume and clarity and high volume. you will want to keep these and install them into future replacements. these will make working speakers sound top shelf. the speaker box also is a main factor. 2cm pine is ideal to use, it is light, durable, and handle sound like a violin does. speaker to box ratio is a factor too. highs and mid range is very flexible, but lows the right measurements. a cube box in relativity to the woofer is a good middle ground. Long box gives a that low comfy tone the reverberates. a short box gives that compression push. I make my own boxes, all the ones that are sold are complete rubbish. then they put high quality speakers with no 3 way crossover witch is a complete waist. Having a good box and a crossover is more important than the speakers, unless they are blown or tattered. i just have a sony house reciever, boxes i made with crossovers, and speakers i cannibalized from the dump and it is better than any thing i have herd, mainly due to the crossovers.
1649785
What matters is the impedance. Most Amps are 8 ohm as are speakers. When you hook multiple speakers in parallel the impedance goes down. The selector ensures that the impedance is at least 4 ohms even when as many as eight speakers are hooked in parallel (and would otherwise present 1 ohm of impedance). On my Yamaha receiver there is a switch that allows for a 4 ohm load and that is the key. You can probably run a 4 ohm load from an 8 ohm driver, it just means that more energy is dissipated in the amp than in the speakers but hopefully not so much as to do damage
2036113
Got these hooked to a 8 ohm receiver and it performs great. The box said 8 ohm. Believe what you want. I have these mounted on my front deck.
803656
Oh and I read other comments. About putting to 1 ohm. Bad idea. That's what I did. To my 2 15" boss subs and exploded the ass end of them. Then I bought two 15 3600 watt pyles and they work perfect. Lots I bass. And can handle more.
531206
The D4 produce an 8ohm when bridged 2 make louder more powerful bass and the 2 only produces an 4ohm when bridge this is only if u want 2 use a lower watt amp. The D4 is just alil louder n powerful but both sound great.
415406
whats your price range? you'd want a little more than 2k rms because you have to factor in box rise. Wiring down to one ohm wont necessarily give you 1 ohm, you'll get around 1.4 ohms in reality. I'd get a crescendo BC 2000, audioque 2200D or an american bass vfl 4480.1D
1884296
Hi,We would recommend the Shockwave4000. It will supply 900W RMS per channel to each Speaker Cabinet. This is a 4 ohm load. Thanks again
2074876
I left mine at 8 ohms because it had plenty of power at 8 ohms for me, but you can easily change the receiver impedance to 6 ohms if you want to. Download the Yamaha manual for the receiver from their site and it will show you how...it's fairly simple.
1176611
4 ohms is the modern standard, and these speakers match that standard. Antique car radios (tube electronics, made before c.1965) may require 3.2 ohms. 2 ohms is for specialty applications (e.g., Bose and some "enclosure-less" subs).
86977
Hi, you should have no issues at 8 ohms. Used a dozen of these for an install last year and they sound great, and the moveable tweeter makes a difference
169386
They are the same output and quality the 4 ohm is more common. Check compatibility with your amp and go from there
682608
It's a really nice box, hope you have plenty room it's a decent size and very deep for big magnet subs and has a labryth build for deep bass. I don't know what ohms your going to run. I think that subwoofer is 4ohm you can look up how to wire it down to 2ohm, sometimes even in the installation instructions. But I love that box and I'm only pushing 500 watts and it shakes my SUV, I'm using pure copper wires throughout my setup though.
1443203
These woofers have been redesigned with great improvements overall. I used the older version with a 250 watt rms Monolithic amp with no problems @ 4 Ohms. I'm sure you will be pushing the limits at 5oo W rms @2 ohms, but the speaker will be agile and fast and you will not have problems if you don't crank it to max levels. The safer route If you will be cranking hard, will be to move to the next level which is the P2D4-12 rated at 800W @ 2 or 4 ohm, I will not be as responsive, but it can handle 800W!
2170765
i am running a TSW310D4 at 2 ohms and it is more then enough for it....love the amp does not get hot...great for one 12"...
2032113
4 Ohms. So, you can either run them at 8 Ohms mono (wired in series), or 2 Ohms Mono (in parallel). Up to 250 Watts RMS. @4 Ohms, I have been able to pretty much bottom out mine with an amp that does around 150-180 watts. In the documentation JL provides, I believe they placed 200 watts as "the sweet spot". For best results, I'd probably get a 300-500 watt Mono subwoofer amp to run 2 as most can handle very low impedance loads. Also the CP208 is a long microbox with 2 of these 8 inch drivers built in. You might go for that instead and save a few bucks. The box is rated 2 Ohms.
1748565
I'd leave the selector at 8ohm and run the mix of 6 and 8 ohm speakers. It should be fine. The only way you'd run into a problem is with 4ohm speakers, and in that case you should be using a discrete amplifier.