Amp help

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boardinbum

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Joined: February 07, 2005

Location: United States

Posted: February 27, 2005 at 4:16 AM / IP Logged

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?

boardinbum

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Posted: February 27, 2005 at 4:19 AM / IP Logged

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?

oonikfraleyoo

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Posted: February 27, 2005 at 8:58 AM / IP Logged

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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boardinbum

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Posted: February 27, 2005 at 8:19 PM / IP Logged

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.

customsuburb

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Posted: February 27, 2005 at 8:50 PM / IP Logged

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. http://www.crutchfield.com/S-Yg7xRGh7gb0/cgi-bin/ProdView.asp?g=67700&I=500SWE1242

boardinbum

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Posted: February 27, 2005 at 8:56 PM / IP Logged

Cheaper?

The Type E I listed above is $105 (including S&H) for two 12's

boardinbum

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Location: United States

Posted: February 28, 2005 at 9:46 PM / IP Logged

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.

Alpine Guy

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Joined: October 18, 2003

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Posted: February 28, 2005 at 9:52 PM / IP Logged

for a single type-e i reccomend in the 300 watt rms range actually

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.

boardinbum

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Location: United States

Posted: February 28, 2005 at 9:58 PM / IP Logged

If I'm going to get a Pioneer 250 RMS x 1 at 4 ohm amp, which of these would you recommend?

http://www.crutchfield.com/S-xzBOOKyu2Mg/cgi-bin/ProdView.asp?g=67700&I=500SWE1241

http://www.crutchfield.com/S-xzBOOKyu2Mg/cgi-bin/ProdView.asp?g=67700&I=500SWE1242

customsuburb

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Posted: February 28, 2005 at 9:59 PM / IP Logged

Sorry I didn't catch that two for one deal. Amp help -- posted image.

If you do use two subs they will each need around 150 to 200 watts continuous or so. Maybe something like this would work. http://www.cardomain.com/item/MTX421D

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