Gday,

Im considering this setup. One 2x84 watt RMS response amplifier, one 10 inch 250 watt RMS dual voice coil response sub. Amp would be running bridged channel 234 watts RMS @ 4 ohms through the single 10 inch 250 watt RMS 4 ohms sub. Im after a nice repsonsive and punchy sub, not big booming bass, Im working on a budget considering I just started university and can't work as much anymore, and this setup brand new would cost me about $350, which is about what I want to spend.

What do ppl think of this setup performance wise, remembering Im going for decent punchy bass, not huge booming bass. And also value for money what are ppls comments.

Also, my current sub setup is one 10 inch clarion sub (400 watt max) being powered by 2x60 watt RMS channels bridged off my BA2900 Boss amp, would the reponse setup considerably outperform my current setup?

I'm quite a big fan of jaycar response stuff myself. I think they're a good sounding speaker/amp on a budget.

I think the setup you described sounds good :)

which Response gear are you using? Post their catalog no's.

Using a dual voice coil woofer requires a slightly more complicated to setup and planning, as well as getting the correct amp.

The product numbers are:

10 inch Sub 250 watt RMS Dual voice coil (2x2 ohms): CS2366

2x84 watt RMS amplifier: AA0432

Although Im still not sure what way I'd need to wire up the voice coils, ie: parrallel or series to get the 4 ohms impedance. I assumed a series hook up would be the way to go, seeing 2x2 ohms drivers in series, doubling the impedance to 4 ohms, but am I right? But that would also mean that if they were hooked up in parrallel the sub would have an impedance of 1 ohms?? Just doesn't sound right to me?

Some of the response products are ok for when your on a budget and the amps and subs do fairly well for themselves. Some of the speakers on the other hand do not but it really just depends on the product. EG the 4" speakers they have are priced at $50 per speaker and are very good speakers. On the other hand the 6.5" components are not good.

which Response gear are you using? Post their catalog no's.

Using a dual voice coil woofer requires a slightly more complicated to setup and planning, as well as getting the correct amp.

My current sub is dual voice coil aswell, although Im not sure exactly how the drivers are wired up as I bought the sub second hand already boxed up. Im going to go down to my local Jaycar now and suss out the named amp and sub, and see what they say, especially in regards to wiring the drivers of the sub to obtain the right impedance.

look for ohms law on the net and a breif discription.

basicaly 1/ot = 1/o1 + 1/o2 + 1/o3 where ot is the totale resistance (ohms) and o1, o2 and o3 are the resistance of the respective speakers.

http://www.perry-lake.k12.oh.us/phs/Classdept/sciencedept/physics/tutorials/e_m/dc1/parallel.htm
there is a crazy way to write it :redface:

but yeah 1/r = 1/2ohms + 1/2ohms for your case josh and therefor 1 ohm Resistance total

Thats what I thought, and there is a much simplier way of saying that, but meh, what do you expect as you are an engineering student.

This is what is confusing me though.


If your Amp is two ohm stable you can wire both voice coils in parallel and increase both the output of your amp and the efficiency of the woofer. As a different approach you could wire the voice coils in series which give you a 8ohm subwoofer (but with the wiring of this one you must connect the positive of one voice coil to the negative of the other voice coil and use the two spare terminals on each side of the speaker to connect to your amplifier).

It says that for this particular dual voice coil sub, that nominal impedance is 4 ohms, when I first saw that I assumed 2 ohms x 2 voice coils = 4 ohms in total. But going by what is said above, Im thinking that the voice coils are 4 ohms each = 8 ohms total. In this case running them parrellel would, as stated above, equal 2 ohms impedance, and when wired in a series 8 ohms resistance. Does any one know if or if not that the stated nominal impedance of 4 ohms would be total or per voice coil?? :confused:

Using a dual voice coil woofer requires a slightly more complicated to setup and planning, as well as getting the correct amp.

Back to this, the 10 inch sub is 2x2 ohms voice coils, so Im guessing by simply wiring the coils up in a series (which will mean 4 ohms total impedance for the sub) and running them off the 2x84 watt amp which when bridged will run 234 watts RMS @ 4 ohms, should work fine. Both impedance and power ratings of each component will match up nicely.

Thats what I thought, and there is a much simplier way of saying that, but meh, what do you expect as you are an engineering student.

This is what is confusing me though.



It says that for this particular dual voice coil sub, that nominal impedance is 4 ohms, when I first saw that I assumed 2 ohms x 2 voice coils = 4 ohms in total. But going by what is said above, Im thinking that the voice coils are 4 ohms each = 8 ohms total. In this case running them parrellel would, as stated above, equal 2 ohms impedance, and when wired in a series 8 ohms resistance. Does any one know if or if not that the stated nominal impedance of 4 ohms would be total or per voice coil?? :confused:

Just had a look on the specs of the subwoofer you quoted. Each voice coil is 2ohms impedence. This means if you wire the voice voice coils in parallel then it would create a 1ohm load, which is highly NOT recommended. Therefore you will wire it in series, thus creating a 4 ohm load, which is great coz most amplifiers are at least 4ohms stable in bridged mode.

Keep in mind the power handling of the sub is 250w rms (in total of both voice coils).


Now looking at the specs for the quoted amp, we get 234w rms of power @ 4ohms. You will just be undercutting it. I usually highly recommend going to the next model, however Jaycar's next model is twice as powerful at 450w rms and is an extra $100.

Having more power coming out from the amp while having smaller handling speakers is actually the better case since you have headroom in the amount of power you can pump out of the amp without clipping, and is actually safer. If you overload a smaller handling amp there is a better chance of destroying your speakers.

Of course, considering the next Jaycar amp is almost twice as powerful doesnt mean you can "turn it up" on the amp without blowing the speakers!

All that said, it should be fine as long as you are careful and use common sense, and that no idiot turns the amp and signal up on full. Just use your ears, hear distortion, turn it down immediately before you end up burning the coils. Just remember this system is loud, but it will not handle any sort of db competition!

Make sure you use the right box for maximum performance. :D

What you said is exactly what Im planning on doing, so the power levels will still match up fairly well, the sub will only be slightly under powered, and the impedance will match up evenly, and I got the specs for the box to so its all pretty much sorted. Now just need the money :confused: .

the speaker would be already wired i would have thought, and if it said 2ohms then its probably two 4 ohms coils in parrellel. i dont think you'll have to worry about that much.

the speaker would be already wired i would have thought, and if it said 2ohms then its probably two 4 ohms coils in parrellel. i dont think you'll have to worry about that much.

Nah the 10 inch is 2x2 ohms coils, and as far as wiring goes I'd like to know and be able to wire it the way I want, and that way I know exactly what is going on. So wiring both drivers in a series would give me the nominal 4 ohms, which is what the amp is running the 234 watts RMS at.

get two, series the coils and the subs = 2 ohms :cool: kick ass
not on a boss amp tho :S

get two, series the coils and the subs = 2 ohms :cool: kick ass
not on a boss amp tho :S

???? Don't u mean series the drivers on each sub, then join the subs via parrallel wiring? Cos by wiring coils and subs in a series that would equal 8 ohms. ie: 2x2 coils @ 2 ohms n a series = 4 ohms. 2 x 4 ohms subs in a series = 8 ohms.

i ment parrellel :nuts:

Yeah thats the plan, I went down to jaycar today, and I was lucky in that they had 240 watt RMS @ 4 ohms sub only amplifiers for $110 down from like $200, as there's a new model coming out very shortly and they had to clear these particular items, so Im pretty happy about that. From what I was told about the 10 inch subby is that they are a very good sub and alot of ppl have been very happy with their performance, so the way its lookin is the 10 inch sub is the go, now just to install it all :D .

get two you skirt

get two you skirt

YOU NO TELL ME!! I KICK YOUR DOG!!!

Nah two would cost me too much, and I can always get a second some time in the future anyway :cool: .

my ears hurt :confused:

my ears hurt :confused:

Has that got anything to do with the fact you have 2 10 inch clarion subs now?