TragicMagic

Here's the subwoofer I'm considering investing in.

(Sorry, apparently I'm too much of a newb and don't have enough 'points' to post a URL link)

Boston Acoustics G210-44
10" 600W Dual 4 ohms Subwoofer
* Sensitivity: 90.3 dB
* RMS Power Range : 300 Watts
* Peak Power Handling: 600 Watts
* Impedance: Dual 4 Ohm
* Low Frequency response: 24 Hz
* High Frequency Response: 350 Hz
* Diameter: 10 Inch

http://www.onlinecarstereo.com/CarAudio/ProductDetail.aspx?ProductID=20341"]http://www.onlinecarstereo.com
/CarAudio/ProductDetail.aspx?ProductID=20341

I'm currently using a Memphis Belle 16-ST1300D amplifier. Its good for 1120W @1 Ohm, 682W @ 2 Ohm, and 410W @ 4 Ohm.

Would there be a way in which I could wire the sub to the amp so that I'm putting a 2 Ohm load on the amp? Therefore enabling the amp to output the 600W when called upon?

I'm doing research as I write this question, but I think I have the answer...
http://akamaipix.crutchfield.com/ca/learningcenter/car/subwoofer_wiring/1DVC_4-ohm_mono.jpg

scroudt111

simple, from your positive on the amp, run the wire to one of the + on the sub, then from that + go to the next +. And same goes for the neg.
Make sense?

scuba789

I just posted on your other thread. This sub has a Sureset connection, there is only one set of terminals. Just use the fuses to set it to 2 ohms and then run a wire from your positive terminal on the amp to the positive terminal on the sub and a wire from the negative terminal on the amp to the negative terminal on the sub.

You will be running twice as much power as the sub can handle. Make sure you have your gains set properly or you will constantly be blowing those fuses and potentially damage your woofer. If you are inexperienced I would recommend getting the single 4 ohm model instead. 410 watts will provide you with enough headroom.

TragicMagic

Scuba, I see what you're saying. If I put the 2 Ohm load on the amp, then it'll supply 600+ Watts to the sub, which is double the RMS rating (that's not quite like saying its twice the power it can handle, but I know what you're getting at since I wouldn't want to drive that much power to it on a consistent basis.)... I think I've been looking at this wrong.
I can either get this sub and use the 4ohm load for 400W (without putting too much strain on the speaker), or get a subwoofer that has a 600W RMS rating and run it at 2ohms. I just figured if the amp is stable at 1ohm, 2 would be easier on the sub and still let me use a respectable amount of power.

I've been doing research on subs and keep seeing sensitivity ratings as well. I wasn't sure what that referred to, so I did some more snooping around...

paraphrased from [http://www.pioneerelectronics.com]Pioneer USA - Home

Boston=Green
90 db at 1 watt at 1 meter
93 db at 2 watt at 1 meter
96 db at 4 watt at 1 meter
99 db at 8 watt at 1 meter
102 db at 16 watt at 1 meter
105 db at 32 watt at 1 meter
108 db at 64 watt at 1 meter
111 db at 128 watt at 1 meter
114 db at 256 watt at 1 meter
117 db at 512 watt at 1 meter
120 db at 1024 watt at 1 meter

now compare

JBL=Orange
96 db at 1 watt at 1 meter
99 db at 2 watt at 1 meter
102 db at 4 watt at 1 meter
105 db at 8 watt at 1 meter
108 db at 16 watt at 1 meter
111 db at 32 watt at 1 meter
114 db at 64 watt at 1 meter
117 db at 128 watt at 1 meter
120 db at 256 watt at 1 meter
123 db at 512 watt at 1 meter
126 db at 1024 watt at 1 meter

A speaker with a db rating of 90 db at 1 watt at 1 meter will put out 120db of volume at 1 meter at the cost of 1024 watts.

A speaker with a db rating of 96 db at 1 watt at 1 meter will put out 120db of volume at 1 meter at the cost of 256 watts.

JBL Power Series P1022
10" 1600W Dual 2-Ohm Subwoofer
Power Series P1022 JBL

* Sensitivity: 96 dB
* RMS Power Range : 400 Watts
* Peak Power Handling: 1600 Watts
* Impedance: Dual 2 Ohm
* Low Frequency response: 25 Hz
* High Frequency Response: 200 Hz
* Diameter: 10 Inch

I think I'll be happy with the JBL. I'll go to an audio shop tomorrow and see if I can hear one in action.

Keep the input coming.
Thanks guys.

scuba789

That JBL is measured at 2.83 volts at one meter with a one ohm load. That is like 8 watts at one meter. In reality it's sensitivity is actually similar to the Boston which is measured with 4 watts at one meter. Both are good woofers and you should pick the one that sounds best to you.

TragicMagic

Woah, woah, woah, where are you getting this information. lol.

So when these companies test their subs, they're not necessarily supplying 1 Watt of power. What do they do, run 4 Watts (or 'x' watts) then divide the result by 4 (or 'x' watts) to represent what they would achieve with 1 watt? I imagine they do this because individual speakers will have better individual sensitivity response at their own optimum power supply.
Its too bad that there isn't an actual standard to which every manufacturer must measure their products.

Scuba, just to let you know that I'm considering getting four 8" subs now. This could get interesting, eh? Off to do some research. I'll be back when I learn something so you can confuse me with it some more.
Thanks though.