Amp help
Printed From: the12volt.com
Forum Name: Car Audio
Forum Discription: Car Stereos, Amplifiers, Crossovers, Processors, Speakers, Subwoofers, etc.
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=50953
Printed Date: May 18, 2025 at 2:20 PM
Topic: Amp help
Posted By: boardinbum
Subject: Amp help
Date Posted: February 27, 2005 at 4:16 AM
I plan to buy an 12" Alpine Type E svc sub.
My questions is, would it be better to get a Pioneer GM-7100M and over power it some, or a Rockford Fosgate 201S, and take the chance of having it be under powered a little?
Replies:
Posted By: boardinbum
Date Posted: February 27, 2005 at 4:19 AM
Also, can anyone show me a visual of how you wire a 4ohm single voice coil sub (like the above Alpine) to a 2 channel amp?
Posted By: oonikfraleyoo
Date Posted: February 27, 2005 at 8:58 AM
I don't understand how the RF would be underpowering it? It matches the RMS exactly. Wire it it bridged, use + on one channel, - on the other. The amp should specify which + and -. ------------- Nik
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Posted By: boardinbum
Date Posted: February 27, 2005 at 8:19 PM
Well, it's 50 watts RMS x 2 at 4 ohms. So I figured if you bridged it, even though it says 200 watts RMS x 2 at 4ohms, it may actually be a little under that.
Posted By: customsuburb
Date Posted: February 27, 2005 at 8:50 PM
That RF amp does 200 watts continuous (RMS) at 4 ohms. Like said above it would be a perfect match for that sub. Alpine came out with a new Type E sub that is probobly better and costs less though. https://www.crutchfield.com/S-Yg7xRGh7gb0/cgi-bin/ProdView.asp?g=67700&I=500SWE1242
Posted By: boardinbum
Date Posted: February 27, 2005 at 8:56 PM
Cheaper?
The Type E I listed above is $105 (including S&H) for two 12's
Posted By: boardinbum
Date Posted: February 28, 2005 at 9:46 PM
Ah, I now see that the other Type E is also 2 for 1.
My only problem with that one (SWE-1242) is that it seems to be basically unheard of.
Posted By: Alpine Guy
Date Posted: February 28, 2005 at 9:52 PM
for a single type-e i reccomend in the 300 watt rms range actually
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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.
Posted By: boardinbum
Date Posted: February 28, 2005 at 9:58 PM
If I'm going to get a Pioneer 250 RMS x 1 at 4 ohm amp, which of these would you recommend?
https://www.crutchfield.com/S-xzBOOKyu2Mg/cgi-bin/ProdView.asp?g=67700&I=500SWE1241
or
https://www.crutchfield.com/S-xzBOOKyu2Mg/cgi-bin/ProdView.asp?g=67700&I=500SWE1242
Posted By: customsuburb
Date Posted: February 28, 2005 at 9:59 PM
Sorry I didn't catch that two for one deal.  If you do use two subs they will each need around 150 to 200 watts continuous or so. Maybe something like this would work. https://www.cardomain.com/item/MTX421D
Posted By: boardinbum
Date Posted: February 28, 2005 at 10:01 PM
I'm only going to use 1. Sell the other. I have a standard cab Tacoma...
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