Will a JL 250/1 run an 12 idmax

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vrsc

Member - Posts: 13

Joined: May 08, 2005

Location: United States

Posted: May 10, 2005 at 6:57 PM / IP Logged

I just purchased a new truck and I can't get rid of this stock set-up fast enough. In my last system I ran 2 10's with my jL 250/1 and it sounded great. I am looking to get a box made for an idmax 12 and would like to use this amp. How will it sound?? Could I run the voice coils at 4 ohm and have it wired in parallel at 2 ohms to equal 500 watts .Would like some info. If I need to purchase another amp to run this, then I will probably purchase a jl 1000/1 and then have the box made for two idmax 12's. The 1000/1 should push the two 12's with ease yes... Thanks in advance for the tips.

ss-installer

Silver - Posts: 444

Joined: February 27, 2005

Location: United States

Posted: May 10, 2005 at 7:08 PM / IP Logged

not real familiar with jl. depends on the amp specs as far as power rating at 2 ohm. as far as the sound of the sub goes - what kind of box (sealed or ported)? what does the sub recommend? what is the box tuned at?

vrsc

Member - Posts: 13

Joined: May 08, 2005

Location: United States

Posted: May 10, 2005 at 7:36 PM / IP Logged

Well the box will be sealed and it is not yet built so not sure I understand (tuned at). There are idmax 2 subs, one in 2 ohm that is rared as (High SPL Ultra Long Excursion 12-inch Dual 2 Ohms • Sealed Box: 1.30 - 1.52 cu.ft • Ported Box: 1.80 - 2.50 cu.ft • Free Air Usage • Frequency Response: 10-150 Hz • RMS - 1000W Peak Power Handling: 1800W ) and a 4 ohm that is rated as (High SPL Ultra Long Excursion 12-inch Dual 4 Ohms • Sealed Box: 1.30 - 1.52 cu.ft • Ported Box: 1.80 - 2.50 cu.ft • Free Air Usage • Frequency Response: 10-150 Hz • RMS - 1000W Peak Power Handling: 1800W . The amp's specs are

Rated Power: 250 W RMS @ 1.5 ohm-4 ohm (11V-14.5V)
	THD at Rated Power: <0.05% @ 4 ohm
	S/N Ratio*: >95dB below rated power
	Frequency Response: 5 Hz - 500 Hz (+0, -1dB)
	Damping Factor: >500 @ 4 ohm/50 Hz
	Input Range: switchable from 200mV-2V RMS to 800mV-8V RMS

Thanks for looking

Alpine Guy

Platinum - Posts: 2,478

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Joined: October 18, 2003

Location: Canada

Posted: May 10, 2005 at 10:32 PM / IP Logged

If you build the box ported the amp you currently have will be pretty loud actually, i have heard a 12" idmax in my Pathfinder with a high quality ported box off of 300 watts rms and it hit harder than most dual 12 set ups. In the future you will gain some more volume with a 1000 watt amp if it is not enough.

2003 Chevy Avalanche,Eclipse CD7000,Morel Elate 5,Adire Extremis,Alpine PDX-4.150, 15" TC-3000, 2 Alpine PDX-1.1000, 470Amp HO Alt.

vrsc

Member - Posts: 13

Joined: May 08, 2005

Location: United States

Posted: May 11, 2005 at 11:36 AM / IP Logged

My box will have to be sealed because of the space it is going in. Should I run it the way I mentioned above? Thanks,

Alpine Guy

Platinum - Posts: 2,478

Joined: October 18, 2003

Location: Canada

Posted: May 11, 2005 at 6:58 PM / IP Logged

Give it a try, if its not loud enough for you then get your hands on a 1000 watt amp to put to that 1 sub.

2003 Chevy Avalanche,Eclipse CD7000,Morel Elate 5,Adire Extremis,Alpine PDX-4.150, 15" TC-3000, 2 Alpine PDX-1.1000, 470Amp HO Alt.

vrsc

Member - Posts: 13

Joined: May 08, 2005

Location: United States

Posted: May 11, 2005 at 7:07 PM / IP Logged

Will it matter if I get a 2 ohm or 4 ohms sub? My amp is rated 250 W RMS @ 1.5 ohm-4 ohm (11V-14.5V). I have done some research and still can not seem to understand ohms. What would be the best way to run this amp? What I mentioned above was what I have only heard, not sure if it would make a difference.Thanks,

raydawg357

Silver - Posts: 769

Joined: June 17, 2003

Location: United States

Posted: May 12, 2005 at 10:07 AM / IP Logged

That JL250 will not push that sub too hard. I have a JL250 on a Crystal CMP-10 and it barely works it.

Do it right the first time

imstrange

Member - Posts: 21

Joined: March 08, 2005

Location: United States

Posted: May 12, 2005 at 10:53 AM / IP Logged

whoa! i have to agree w/alpine guy ; I have th same 250/1 pushing 2 JL 10's dual vc in parallell not even close to maxin out alpine 7894hu.

2000 silverado ext cab mtx pro thunder comp box . I am surprised what abuse this amp takes

later m.s.

dont be one

Alpine Guy

Platinum - Posts: 2,478

Joined: October 18, 2003

Location: Canada

Posted: May 12, 2005 at 1:22 PM / IP Logged

Whell, if you only plan on running 1 sub in the future get the dual 4 ohm model, if you may, but don't know yet run 2 subs in the future, then get the dual 2 ohm model. Either model you get the amp you have will put out the 250 watts rms, but in the future if you want to add another id max you will need 2 dual 2 ohm models.

2003 Chevy Avalanche,Eclipse CD7000,Morel Elate 5,Adire Extremis,Alpine PDX-4.150, 15" TC-3000, 2 Alpine PDX-1.1000, 470Amp HO Alt.

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