Subwoofer on two channel stereo?

by Chandler
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I am new here and there's a lot I don't know. I need your help and there's some tech info I don't know or understand. Please help me and keep it simple. Thanks!
I'd like to know if I can install a subwoofer on my two channel stereo if I put in an amplifier. It is a Jensen stereo which is about 50 watts and the two speakers are about 50 watts each. I wondered if I installed the correct amp if that would allow me to hook up a woofer off of it. Any help would be appreciated.


Replies (17)
cplkittle on 03/18/2007 22:11:53
okee dokee.. a kubota 900?
Is this what you are installing this on?

You can, but we need a little more information. First of all, we need to know the model number of the radio. and does this radio have RCA outputs?

Chandler on 03/19/2007 00:37:15
The Kubota is a utv which is like an atv but larger. It is equipped with a three cylinder diesel engine with an alternator type charging system. The radio is a new heavy duty weather proof stereo which is compact in design. It was made by ASA for these type vehicles. I will get more info off the stereo and get back tomorrow. Thanks!


jamesp on 03/19/2007 12:57:24
Chandler, my brother and myself, just got a Kubota 900 2 weeks ago to replace a Polaris Ranger that we sold to his neighbor. The 900 has a hydraulic dump, heater,windshield wipers and front and rear locking diffs... No sound system planned for it ..The only thing I liked better about the Polaris is that on the road it was a lot faster and didnt brake so hard when you take your foot of the gas pedal...or should I say ..diesel pedal...The Kubota is twice the machine though..and of course twice the priceGRIN

Chandler on 03/19/2007 15:22:50
We, my son and myself, had a Polaris Sportsman 500 Remington Edition. We used it mostly for carrying us and pulling a trailer with our supplies to a duck blind on our farm. The Polaris was strong and did the job, but we needed something bigger and that could haul more.
I think we found what we needed in the Kubota. I looked at the Mule and Ranger real hard but when I looked at the Kubota I knew thats what I wanted. It is built like a tractor and works hard like one too. I got mine back about Christmas and am looking forward to using it a lot this spring and summer. It will help a lot with my yardwork and landscaping chores too. As for the gas pedal it takes some getting used to. It reminds me of my John Deere mower that has a hydrostatic drive and I love it. We have the Camo version of the Kubota and I have put camo seat covers to match on it. As for the speed, mine goes about 27 mph, it is plenty fast for me. I will tell you of a website that has helped me a lot and has tons of info on the RTV, it is www.compacttractorreview.com and go to the forums and you can register which is very easy.

Chandler on 03/19/2007 15:45:27
My radio is a Jensen JHD910 Heavy Duty Radio with the HDS3000 speakers and they are only viewable on the ASA (audiovox special applications) website which is ... www.asaelectronics.com. I would just like to know if I can add a subwoofer, maybe one by Jensen, one of those for their marine applications might work. I know that I will probably need an amp to be able to do this. I will need a marine type amp too. I don't think it will get wet, damp maybe. It will be mounted under the roof but it is not an enclosed cab.
Also, I do not need to spend a lot of money and I am not wanting a big subwoofer, just something to give my music a little bump. The HDS3000 speakers are heavy duty and they do a great job but it would be nice to have a little more bass. The radio does not have RCA outputs, it has your standard wire and connectors for the speakers. It does have an ipod or mp3 connector.


cplkittle on 03/19/2007 21:25:06
It should be as easy as getting a line output converter (changes speaker wire to RCA), then running the RCA to the sub amp.

Since this is an open area type setup I would strongly suggest a sealed enclosure. Ported enclosures do not do well in open air.

The amplifier will need a power wire, a ground wire, and a remote turn on wire. I don't know if the jensen radio has a remote wire, but you can tap into the switched wire (+12v when the key is on). In car applications it will be the red wire on the back of the radio.

On speaker size, I would go with either an 8" or a 10" sub. Somewhere in the 200-300 watt range. The radio is 15 watts per channel, so we don't want to go too far.

I will look around for an all in one setup that should suit your needs, or atleast give you some examples.

Chandler on 03/19/2007 22:17:17
Thanks cplkittle. I appreciate it!

cplkittle on 03/19/2007 22:35:52
My only concern would be the amplifier location. Is there any room under the seat or under the dash for an amplifier (somewhere in the neighborhood of 10x14x2)
It could also be mounted on the underside of the roof, but if you screw it to the top, you are making holes. The marine amplifiers have coated circuit boards that protect from moisure, but they are not waterproof.

cplkittle on 03/19/2007 22:43:06
I scoured ebay, but couldn't find anything I saw fitting.
I went back to ASA and saw this one:
http://www.asaelectronics.com/detail.html?catid=&pid=65
This looks simple enough, a sub, an amplifier, all in its own little enclosure about the size of an aftermarket amplifier.
I would highly recommend this one. If it is not quite enough, you can add another. I believe it will be plenty though.

It looks like the price is going to be between $125-200

Chandler on 03/20/2007 09:23:05
Do you know how I would go about wiring it up, as for as the speaker wires, how do I tie in the subwoofer? Will both speaker wires, left and right, go to the subwoofer/amplifier first and then to each speaker? Thanks!


cplkittle on 03/20/2007 10:39:00
Most of the time we use RCA to carry signal from the radio to the amplifier. In this case, you may need a line output converter which you can tap into the speaker wires and this magic little box will change speaker level input to RCA preamp output.
I am not sure how that sub and amp combo is setup as far as connections and inputs. If they are speaker wire, just tap in to either channel to feed it.

Chandler on 03/21/2007 00:08:07
I think I understand now. After I get the sub and converter I will see if I can get it wired up. Thanks a lot! I'll let you know how it goes. It may take a week or so to get it ordered and shipped to me.

cplkittle on 03/21/2007 19:02:09
Great, we always appreciate feedback.
it keeps our heads swelled up..SMILE

Chandler on 05/5/2007 23:48:57
I'm sorry it took me so long to let you know how the installation is going on the subwoofer but I've been out of pocket because my wife had surgery, so I've been cooking, cleaning and working.
Anyway, she is doing better and I have gotten a little free time to work on it lately and I need some info on how to hook up the trigger wire from the subwoofer. I hooked up the positve wire, negative wire, and the speaker wires using the line output converter but the power light on the sub is not on. I guess I don't understand just exactly how it works.

Thanks,

Jerry

trunkisloud on 05/6/2007 00:06:07
run the remote wire from the amp to the red wire on the back of the radio...or to a switched fuse on the panel so that the amp will come on with the key....unless the radio has a remote wire which is usually blue with a white stripe....if so then use that one.

Chandler on 05/6/2007 01:17:54
The trigger wire from the subwoofer is blue. It has two different connectors on it, one is flat and the other is round. So it's okay to hook this up to a positve wire from the key switch or from the fuse panel. If I do this, do I still need to hook up the positve wire from the sub/amp?
The sub has a built in amp., just to let you know.

Chandler on 05/6/2007 18:31:19
Okay, I think I have it figured out. l connected the wires today to see if it would work. The sub and speakers worked great. I just need to wire it in permanent now. I have learned a lot from you guys and I really appreciate all the help.

Jerry



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