1 12
Thread Starter
Burning Brakes
Joined: Oct 2004
Posts: 802
Likes: 0
From: Bueche Louisiana
1 12
looking to put 1 12 in the rear of my coupe
has to be able to store factory top
like to keep it small as possible
amp will produce 235 watts rms x 2 at 4 ohms 350 watts rms x 2 at 2ohm stereo or 700 watts rms bridged 4 ohm mono
so my woofer will have to be a 4 ohm dvc woofer, 4ohm dvc woofer, or 4 ohm single voice coil woofer
thinking of alpine type r 12 in a dual 4 ohm voice coil
can get it brand new for 95 bucks
problem is i have no idea what it will sound like
im running cdt 3 way components in the front doors on a pioneer premier prsx720 (same kind of amp for sub)
i want sq but still want the ability to beat and get loud when i want
leaning towards alpine but would like some suggestions
has to be able to store factory top
like to keep it small as possible
amp will produce 235 watts rms x 2 at 4 ohms 350 watts rms x 2 at 2ohm stereo or 700 watts rms bridged 4 ohm mono
so my woofer will have to be a 4 ohm dvc woofer, 4ohm dvc woofer, or 4 ohm single voice coil woofer
thinking of alpine type r 12 in a dual 4 ohm voice coil
can get it brand new for 95 bucks
problem is i have no idea what it will sound like
im running cdt 3 way components in the front doors on a pioneer premier prsx720 (same kind of amp for sub)
i want sq but still want the ability to beat and get loud when i want
leaning towards alpine but would like some suggestions
Le Mans Master
Joined: Nov 2004
Posts: 8,718
Likes: 20
From: Dyer IN
Cruise-In IX Veteran
That type R will sound very nice, I suggest only going with a 10 beacuse that way you could put it into one of your cubbys. Also your amp seems very big if it produces 700watts rms 4ohm bridged. I would suggest s single voice coil 4 ohm sub but watch your gains you could easily blow it with 700wattsrms
Race Director
Joined: May 2003
Posts: 14,137
Likes: 2,984
From: Iowa
St. Jude Donor '03 thru '26
There are 2 members on the Forum that sell prefab boxes for the rear center compartment that will handle a 12". Both will allow the storage of the roof.
I'm a big fan of Pioneer HUs but Pioneer over rates their amps. If they state that it will put out 700 watts into a single 4 ohm load, in reality, the amp will put anywhere from 175 to 350 usable watts. That amount should be great for the Alpine. I personally have never had a Alpine sub but hear they can be picky. Too much power, they blow. Too little power, the don't put out. Back in the late 80's I owned four Alpine 3-way 6X9s and they ROCKED. JL Audio make great subs. Other good ones that are posted on the Audio Forum are Image Dynamics Maxs, Infinity Perfects, and ED series that I don't remember but I'm sure someone will chime in. Best of luck
I'm a big fan of Pioneer HUs but Pioneer over rates their amps. If they state that it will put out 700 watts into a single 4 ohm load, in reality, the amp will put anywhere from 175 to 350 usable watts. That amount should be great for the Alpine. I personally have never had a Alpine sub but hear they can be picky. Too much power, they blow. Too little power, the don't put out. Back in the late 80's I owned four Alpine 3-way 6X9s and they ROCKED. JL Audio make great subs. Other good ones that are posted on the Audio Forum are Image Dynamics Maxs, Infinity Perfects, and ED series that I don't remember but I'm sure someone will chime in. Best of luck
Thread Starter
Burning Brakes
Joined: Oct 2004
Posts: 802
Likes: 0
From: Bueche Louisiana
pioneer
these amps i have are the premier reference series amplifiers
they are rated at 100x 2 or 400x 1 but the certification sheet says they produce 235 x 2 or 698 x 1 rms
they are rated at 100x 2 or 400x 1 but the certification sheet says they produce 235 x 2 or 698 x 1 rms
Race Director
Joined: May 2003
Posts: 14,137
Likes: 2,984
From: Iowa
St. Jude Donor '03 thru '26
I have a couple of their Premier HUs (luv'em) but they give you those wattage numbers at ideal voltage and high distortion levels. A continuous 14.4 volts is not real world, 12 to 12.5 at an input to amp is more "real world" Also the THD should be rated no higher than .1 at rated output.
I'm including a link to Pioneer amp that shows what I'm talking about.
http://www.pioneerelectronics.com/pna/product/detail/0,,2076_4055_77659852_tab=B,00.html?comp Name=PNA_ProductDetailComponent
It states 300 watts on the amp but the specs they provide show:
Four-channel at 4 ohms 35X4 equals 140 watts
Four-channel at 2 ohms 40X4 equals 160 watts (red flag)
Bridged into two channels at 4 ohm 70X2 equals 140 watts
Bridged into two channels at 2 ohm equals smoke
It doesn't say, but I bet these measurements were at 14.4 volts also so at 12 volts so the power levels will drop approx 16%. In other words their 300 watt amp is putting out about 120 watts total.
To me its false advertising. I'm not trashing you amp at all, I just know these things with 20 years in car audio and doing 5 years rebuilding electronics. Ckeck out my sig, I managed to get three 12's in my C5 and I can still fit the roof in the back.
I'm including a link to Pioneer amp that shows what I'm talking about.
http://www.pioneerelectronics.com/pna/product/detail/0,,2076_4055_77659852_tab=B,00.html?comp Name=PNA_ProductDetailComponent
It states 300 watts on the amp but the specs they provide show:
Four-channel at 4 ohms 35X4 equals 140 watts
Four-channel at 2 ohms 40X4 equals 160 watts (red flag)
Bridged into two channels at 4 ohm 70X2 equals 140 watts
Bridged into two channels at 2 ohm equals smoke
It doesn't say, but I bet these measurements were at 14.4 volts also so at 12 volts so the power levels will drop approx 16%. In other words their 300 watt amp is putting out about 120 watts total.
To me its false advertising. I'm not trashing you amp at all, I just know these things with 20 years in car audio and doing 5 years rebuilding electronics. Ckeck out my sig, I managed to get three 12's in my C5 and I can still fit the roof in the back.
