Best box for Alpine Type R?

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alex75

Copper - Posts: 134

Joined: March 30, 2004

Location: United States

Posted: April 19, 2004 at 9:22 AM / IP Logged

OK, after much consideration I finally decided to buy a Type R 12, should be here in a few days. What kind of box will the sub be happiest in? I'm looking for something that slams w/out sacrificing SQ, so I'm thinking about building a slotted port design. I've been told that the factory built box for the R is ridiculous for both SQ and SPL. I'de like to try to copy that design, but need specs. Any ideas fellas????

DYohn

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Joined: April 22, 2003

Location: Arizona, United States

Posted: April 19, 2004 at 10:24 AM / IP Logged

A slotted port design is the worst possible enclosure for SQ. It is fantastic for SPL. Type R's sound best in a 1.0 CUFT sealed enclosure and will give you mucho SPL as well...

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alex75

Copper - Posts: 134

Joined: March 30, 2004

Location: United States

Posted: April 19, 2004 at 11:01 AM / IP Logged

Thanks, I definately trust your advice. However, I think I'de like to have a little more boom than a sealed box can offer. I don't compete or anything so I don't mind giving up a little SQ. How about something in the middle-a standard ported box built to spec? If you feel adamently about a sealed box, then that's what I'll do.

DYohn

Moderator - Posts: 10,741

Joined: April 22, 2003

Location: Arizona, United States

Posted: April 19, 2004 at 11:04 AM / IP Logged

No, no, I don't feel adamantly one way or the other! :) Just letting you knw the options. Slotted ports tend to be a little less musical than round ports, but some folks say they can't hear the difference. Best boom for the buck is always ported, and the Type R can certainly boom. Do what suits you, not me!

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alex75

Copper - Posts: 134

Joined: March 30, 2004

Location: United States

Posted: April 19, 2004 at 12:30 PM / IP Logged

I checked the Alpine site for box specs. It gives info for a sealed(.7-1. cuft) box, but nothing about ported. Where can I find spec for a ported box? Can I simply use the dimensions of the Alpine Type R factory built slot port box and substitute a 3 or 4" round port? For all I know, the manual that comes w my sub may have the info I need, but I would like to have a box ready when the sub arrives.

DYohn

Moderator - Posts: 10,741

Joined: April 22, 2003

Location: Arizona, United States

Posted: April 19, 2004 at 1:08 PM / IP Logged

For ported, I believe the Type R likes about 2.0 to 2.1 CuFt. Hey Alpine Guy, where are you? :)

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Alpine Guy

Platinum - Posts: 2,478

Joined: October 18, 2003

Location: Canada

Posted: April 19, 2004 at 5:00 PM / IP Logged

im here, haha Iv had box's made for me with 2 cube's of air space and tuned to about 45hz, it was stupid loud, and still a little musical. I personally have had pretty much the same spl output from this sub in either a 1.25 cube box, or a ported box, they only diff is like 2 db which you wont be able to notice.

If you feed 300 wrms to it, sealed is the way to go, it moves alot without much power.

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.

defective

Silver - Posts: 642

Joined: August 20, 2003

Location: Canada

Posted: April 20, 2004 at 7:52 AM / IP Logged

i second that notion

alex75

Copper - Posts: 134

Joined: March 30, 2004

Location: United States

Posted: April 20, 2004 at 9:07 AM / IP Logged

You guys all Rule!!! As always, thanks!!!

alex75

Copper - Posts: 134

Joined: March 30, 2004

Location: United States

Posted: April 20, 2004 at 9:59 AM / IP Logged

Hey Alpine guy!! I have a few more ?s for ya. What do you reccomend for rms to a Type R 12? I've heard they want more than 300w. For now, I'm using a (cheap) 600w, 2 ch Lanzar amp, will this be enough? I'll be getting an Alpine amp soon, which do you reccomend? I like the MRV420, 340wx1 @ 4 ohm bridged (I bought the 2 ohm sub). Does Alpine make a 1ohm bridged stable amp? If not, can you reccomend another good amp for the job? Thank you in advance, I really appreciate your input Best box for Alpine Type R? -- posted image.

Best box for Alpine Type R? -- posted image.

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