Keep Diamond D3 or upgrade to PG RSD?

[kmu 10+ year member]

Hi there, I have an alpine amp 400rms @4ohms and 600rms @2ohms.

Got a 12"sealed box with .95cf of airspace

I currently have a Diamond Audio CM3 12" single 4ohm getting 400rms, do you guys think a Phoenix Gold RSD 12 dual 4ohm getting 600rms will sound better? Im looking for SQL specially on the low notes....

THX in advance

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[diamond_sound 10+ year member]

I would keep the D3 sub. I have used this same sub in my last 2 cars and it sounds great, it gets loud and it is clean.

 

[kmu 10+ year member]

Well one sub is getting 400rms and the new one would get 600rms, that should help a bit.

 

[kmu 10+ year member]

Anyone knows how this Phoenix Gold RSD12 would play in a small sealed enclosure?

PG recommends for sealed boxes 1.2cf for SQ and .7cf for SPL, thats strange isnt it that they recommend a smaller box for SPL.

Since Im just in the middle of the recomendation, I guess the sub should perform nice shouldnt it?

I can get the RSD for the same price I can sell my used CM3 12 diamond audio sub, this way I would get the full potential out of my amp...

 

[MTXman 10+ year member]

My PG RSD12D's are getting 900 watts each and they sound great and get pretty loud. They are in ~2.0^3 ft shared.

 

[kmu 10+ year member]

My PG RSD12D's are getting 900 watts each and they sound great and get pretty loud. They are in ~2.0^3 ft shared.

Thats good to hear, how are the low hz notes on that size enclosure?

I will stuff about 1.5lbs of polyfil to help the sub in such small enclosure

THX again...

 

[MTXman 10+ year member]

The low end is pretty **** good for being sealed. I should probably put polyfill in my enclosure but I'm not sure if it's worth it.

 

[kmu 10+ year member]

Do you guys think the extra 33% increase in power(200 rms extra) adn the new sub will give me a much better SQL set up?

 

[kmu 10+ year member]

I just found out my sub is not a Diamond Audiio CM3 sub but an M3 sub which is much inferior, the CM3 is rated for 400rms and the M3 is rated for 200rms.

I found out because while browsing on diamondaudio.com I couldnt find the CM3 12"in single 4ohm version, the one that comes with a single 4ohm coil is the M3 sub wich is inferior.

So one more reason the RSD 12 getting 600 rms could play better.

 

[mr_imperial 10+ year member]

get the rsd...i have a vid of mine with 300rms in my sig0

 

[kmu 10+ year member]

get the rsd...i have a vid of mine with 300rms in my sig0

Nice video, what size box did you have that sub? is it a 10 or a 12?

 

[mr_imperial 10+ year member]

it was a 10 in a 1cu.ft sealed box (prefab). i have a tc-7 right now and i would have to say the rsd is much better bang for the buck