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pdx 1.1000 amp, 2 type r's, opinions?


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z speed 
Member - Posts: 1
Member spacespace
Joined: May 22, 2008
Location: Wisconsin, United States
Posted: May 22, 2008 at 8:39 AM / IP Logged  
Well to start off I have a 07 cobalt ss/sc.... I got a pioneer avic D3 for a HU and mtx 6x9s in the rear right now... I orginally had one new style alpine type R sub in a 1.75 q logic box with a alpine mrd 605 amp... well after dynamating the whole car I craved more power to the sub. So I bought a alpines new PDX 1.1000 amp... toasted the sub later that day from it just taking abuse over the 3 years I had it so I got 2 new type Rs both 2 ohm. Now im looking to build a box for my subs. I Just wanted everyones opinion on the subs/amp combo if the amp is going to be to over powering? And I would like to know whats a recommend size for the subs as far as a box is concerned. Im thinkin about going sealed this time around and I know crutchfield recommends 0.57-1.0 cu. ft. but ive been reading around and a lot of people say that the subs need more space then that so looking around I noticed most go with 1.5 to 2.0 cu.ft. Just wondering what the pros on here recommend
haemphyst 
Platinum - Posts: 5,054
Platinum 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: January 19, 2003
Location: Michigan, Bouvet Island
Posted: May 22, 2008 at 1:14 PM / IP Logged  
No. That amp will be fine. Wire them each to 4 ohms, and wire one woofer to each amplifier connector.
The datasheet for those woofers says .7 to 1.0 cubic feet (gross) for a sealed box, and .75 to 1.75 cubic feet (gross) for vented.
However, that being said, I expect that you actually misadjusted your amp. A woofer will NOT just blow from "taking abuse for 3 years". When you install all of your components, be sure to adjust your amp's gains correctly.
It all reminds me of something that Molière once said to Guy de Maupassant at a café in Vienna: "That's nice. You should write it down."
chillin420 
Copper - Posts: 236
Copper spacespace
Joined: March 27, 2008
Location: California, United States
Posted: May 22, 2008 at 6:19 PM / IP Logged  
i recently had a couple of those subs and i built the box to .95  cuft.  that is the ideal enclosure space that i found through all my trials and errors.
you can do it....
advanced MECP, lol does it really matter....
patience is a virtue

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