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jakediggity 
Copper - Posts: 84
Copper spacespace
Joined: July 12, 2004
Location: United States
Posted: August 08, 2004 at 4:37 PM / IP Logged  
I have an Alpine mrv-f340 which has 55x4 watts rms @4 ohms and 130x2 watts rms bridged @4 ohms im assuming.  Anyway i was gonna run my fron components off of  two of the channels and bridge the other two to one 10" sub (might even get an 8", dont listen to a lot of rap).  Anyone got any ideas of what that amount of power should run?  I know its not a lot but i want somethin.  Any ideas?  thanks
DYohn 
Moderator - Posts: 10,741
Moderator spaceThis member has made a donation to the12volt.com. Click here for more info.spaceThis member has been recognized as an authority in Electrical Theory. Click here for more info.spaceThis member has been recognized as an authority in Mobile Audio and Video. Click here for more info.spacespace
Joined: April 22, 2003
Location: Arizona, United States
Posted: August 08, 2004 at 5:12 PM / IP Logged  
The Alpine MRV-f340 is rated at 35 to 65 watts per channle into 4 ohms and will deliver between 90 and 130 watts into a 4-ohm bridged load on channels 3 and 4 (depending on your car's system voltage.)  Get a subwoofer rated for 150 watts RMS.  How much do you want to spend?
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jakediggity 
Copper - Posts: 84
Copper spacespace
Joined: July 12, 2004
Location: United States
Posted: August 08, 2004 at 6:40 PM / IP Logged  
im lookin at about 100 bucks, but if i get it from ebay i could get somethin with an MSRP of about 175 for around 100 bucks, so suggest anything that i could "get my hands on" for under 100, or if you know of something close to that price range that would be worth the extra money please list that as well.  And i have a question about my amp and DVC's.  Since my amp is only 4 ohm stable when bridged, (correct?) would it be bad to wire a DVC subwoofer to it?  Because from what I've read, and i may be misunderstanding it,  DVC's rated @4 ohms s coil actually are a 2 Ohm load to your amp, is that correct or is that all in the wiring and is there a way to maintain a 4 ohm load with a sub of those specifications?
DYohn 
Moderator - Posts: 10,741
Moderator spaceThis member has made a donation to the12volt.com. Click here for more info.spaceThis member has been recognized as an authority in Electrical Theory. Click here for more info.spaceThis member has been recognized as an authority in Mobile Audio and Video. Click here for more info.spacespace
Joined: April 22, 2003
Location: Arizona, United States
Posted: August 08, 2004 at 6:45 PM / IP Logged  

That is correct.  You want a SVC woofer @ 4-ohms, or a DVC @ 2-ohms.  There is NO performance difference between a SVC and a DVC woofer per se, just different wiring options.

Is your $100 your total budget for woofer and enclosure or just for the woofer?

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jakediggity 
Copper - Posts: 84
Copper spacespace
Joined: July 12, 2004
Location: United States
Posted: August 08, 2004 at 6:55 PM / IP Logged  

100 bucks for the woofer and im guessin just a 80 dollar enclosure from crutchfield or somethin unless you have a better idea for what to do about an enclosure.

Alpine Guy 
Platinum - Posts: 2,478
Platinum spaceThis member has made a donation to the12volt.com. Click here for more info.spacespace
Joined: October 18, 2003
Location: Canada
Posted: August 08, 2004 at 9:31 PM / IP Logged  
Whell, , you have almost too many decisions with subs, , are you going for an alpine system, , or a whole lota everything??
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.
jakediggity 
Copper - Posts: 84
Copper spacespace
Joined: July 12, 2004
Location: United States
Posted: August 08, 2004 at 11:13 PM / IP Logged  
I think i might go with a kappa perfect 10, would that work well?  Also what do you think of the mrv-f340 (i noticed you're selling it) would it be all right to power two diamond audio 4's and the perfect?
Ravendarat 
Platinum - Posts: 2,806
Platinum spacespace
Joined: February 23, 2004
Location: Canada
Posted: August 09, 2004 at 12:04 AM / IP Logged  
kappa perfect needs way more power than what you got. I would look at the infinity reference 10, its a really nice driver for the money and will operate off the power you have.
double-secret reverse-osmosis speaker-cone-induced high-level interference distortion, Its a killer
robbyrob717 
Copper - Posts: 53
Copper spacespace
Joined: August 02, 2004
Location: United States
Posted: August 09, 2004 at 12:32 AM / IP Logged  
i would go with a rockford fosgate stage 1 10" subwoofer (50-150watt rms) or a kicker comp 10" subwoofer (25-125watt rms). both are under 100 bucks and will sound nice. i would but them in a ported enclosure since the power you are feeding them. a sealed enclosure will take more power for the sound a ported will put out with less. the specs on the enclosure and port size are on crutchfield.com. the kicker has a better efficency though so it will make more sound with less power.
94 Pontiac Sunbird 3.1 V6
alpine deck
audiobahn 3.5 fronts w/ tweeters
audiobahn 6.5 rears w/ tweeters
* sold rest of system to save up towards new car. $3000 spent on it.
robbyrob717 
Copper - Posts: 53
Copper spacespace
Joined: August 02, 2004
Location: United States
Posted: August 09, 2004 at 12:32 AM / IP Logged  
i would go with a rockford fosgate stage 1 10" subwoofer (50-150watt rms) or a kicker comp 10" subwoofer (25-125watt rms). both are under 100 bucks and will sound nice. i would but them in a ported enclosure since the power you are feeding them. a sealed enclosure will take more power for the sound a ported will put out with less. the specs on the enclosure and port size are on crutchfield.com. the kicker has a better efficency though so it will make more sound with less power. also both are svc 4 ohm
94 Pontiac Sunbird 3.1 V6
alpine deck
audiobahn 3.5 fronts w/ tweeters
audiobahn 6.5 rears w/ tweeters
* sold rest of system to save up towards new car. $3000 spent on it.
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