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Alpine Type R or RF P3


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jjclark15 
Member - Posts: 41
Member spacespace
Joined: December 12, 2004
Location: United States
Posted: January 13, 2005 at 9:22 PM / IP Logged  
Heres the deal I bought 2 Alpine Type R 12s at my local shop and I went through 2 sets already and my amps gains are all the way down running at 4ohms stereo( Soundstream Rubicon 1002) so its only putting out about 500 watts to each i was wanting to upgrade but they only carry Fosgate, Alpine, Pioneer and Sony so they told me to upgrade to the P3, but are the P3 any better? If not what should I do
promodeepcycle 
Copper - Posts: 152
Copper spacespace
Joined: October 17, 2003
Location: United States
Posted: January 13, 2005 at 9:28 PM / IP Logged  
the p3 will handle 400watts rms compared to 300rms on the type r.... but I think the type-r  "sounds" better.... the dust caps of the fosgates break loose of the glue ....... this prob. might not be the sub though... I have a single type-r 10 with 650 rms.. (old mrv-1002 v12)  this problem might be your enclsoure..
dont be a pet monkey ..use your dmm
jjclark15 
Member - Posts: 41
Member spacespace
Joined: December 12, 2004
Location: United States
Posted: January 13, 2005 at 9:30 PM / IP Logged  
U think its because I put them in a ported box (obcon)
jjclark15 
Member - Posts: 41
Member spacespace
Joined: December 12, 2004
Location: United States
Posted: January 13, 2005 at 9:49 PM / IP Logged  
Not Sure Exaxtly what dimensions and ft3 it is but I can find out
Alpine Guy 
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Joined: October 18, 2003
Location: Canada
Posted: January 13, 2005 at 9:56 PM / IP Logged  
I have my type-r in a ported box , getting fed a tru 550 watts rms.....no problems,. and i abuse my stuff to no avail.
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.
jjclark15 
Member - Posts: 41
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Joined: December 12, 2004
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Posted: January 13, 2005 at 10:06 PM / IP Logged  
Best box 4 the type r Love the low frequencies and but still tight and accurate
promodeepcycle 
Copper - Posts: 152
Copper spacespace
Joined: October 17, 2003
Location: United States
Posted: January 14, 2005 at 8:14 AM / IP Logged  
ported doesnt mean its bad for it...lets just look at 1 thing.?  when you bought that box did it ANYWHERE say "for alpine type-r?"  ok then you need to design an enclosure for that sub... that amp.... in your vehicle...if you want give me external deminsions and ill do 1 up for you..
dont be a pet monkey ..use your dmm
jjclark15 
Member - Posts: 41
Member spacespace
Joined: December 12, 2004
Location: United States
Posted: January 14, 2005 at 9:20 AM / IP Logged  
Dimensions as in HxWxL or specifications?
Soundstream Rubicon 1002
500x2@1ohm stereo
1000x1@2ohm bridged
1000x1@4ohm bridged
Dimensions- 16"x9.8"x2.25"
Type R 12-
2ohm+2ohm 300rms 1000pk
rec sealed enclosure 0.7-1.0ft^3
Thnx promodeepcycle for ur help
promodeepcycle 
Copper - Posts: 152
Copper spacespace
Joined: October 17, 2003
Location: United States
Posted: January 14, 2005 at 5:52 PM / IP Logged  
is that the dimensions for you amp???? I need to know how much room is in your vehicle to build a box?.......
dont be a pet monkey ..use your dmm
heavilymedicate 
Silver - Posts: 328
Silver spacespace
Joined: August 05, 2004
Location: Texas, United States
Posted: January 14, 2005 at 8:20 PM / IP Logged  

Possibly, you need a subsonic/infrasonic filter.  Even a properly designed ported/vented enclosure will not help if you continue to play frequencies bellow the tuning frequency.  If you do not want to use a subsonic or cannot, build a sealed enclosure.

I recently spent some time in my suburban with a MTX 7500 taking 600w rms from my JBL bp1200.1, it help up very well.  The enclosure was a MTX prefab, a "sledgehammer" enclosure.

What will you get for Christmas, bad boy? Coal........or Visonik?? - stevdart
Wow, is everyone clueless and lost in the dark? - uthinkuknoaudio

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