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Sealed Enclosure?


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kd7nfr 
Copper - Posts: 71
Copper spacespace
Joined: June 09, 2005
Location: United States
Posted: June 13, 2005 at 6:08 PM / IP Logged  
I'm probably getting on your nerves with all the posts. But I want to do this right the first time. I'm looking for an enclosure for two Eclipse SW9122s. I'm going for SPL. I've been told 1 cubic foot sealed box is best. Is this true? I know a lot of you guys own subs like mine, and though I'd ask for some input. I've been told that sealed is hard on subs, and is 1 cubic foot enough? Thanks guys.
ss-installer 
Silver - Posts: 444
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Joined: February 27, 2005
Location: United States
Posted: June 13, 2005 at 6:27 PM / IP Logged  
sealed isnt hard on subs, overpowering and user abuse are hard on them. if you are going for SPL then go ported.
audiobass10 
Silver - Posts: 328
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Joined: October 11, 2004
Location: United States
Posted: June 13, 2005 at 6:36 PM / IP Logged  

kd7nfr wrote:
I'm probably getting on your nerves with all the posts. But I want to do this right the first time. I'm looking for an enclosure for two Eclipse SW9122s. I'm going for SPL. I've been told 1 cubic foot sealed box is best. Is this true? I know a lot of you guys own subs like mine, and though I'd ask for some input. I've been told that sealed is hard on subs, and is 1 cubic foot enough? Thanks guys.

lol, sealed is definitely not an option when looking for SPL. A ported enclosure works well in SPL. Whether you use aero ports, round ports, or Slot ports is your choice. Generally, slot ports and aero ports do best in SPL type setups. I can't tell you for sure the size of the enclosure you'll need as I have not experimented with any eclipse subs.

Dave
Pioneer Premier DEH-P660
15" Kicker CVR
Profile AP1000M
It's Loud
kd7nfr 
Copper - Posts: 71
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Joined: June 09, 2005
Location: United States
Posted: June 13, 2005 at 9:03 PM / IP Logged  
What's a good frequency to tune them at? I've been playing with 32Hz. Is that a good place? I'd experiment, but MDF is almost impossible to find around here...
DYohn 
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Joined: April 22, 2003
Location: Arizona, United States
Posted: June 13, 2005 at 9:40 PM / IP Logged  

kd7nfr wrote:
MDF is almost impossible to find around here...

Really?  Where do you live?

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redpeppers 
Silver - Posts: 483
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Joined: May 24, 2005
Location: United States
Posted: June 13, 2005 at 10:46 PM / IP Logged  
the tuning freq. depends on the car.
Where theres is a wire there's a way.
Ace_tx 
Member - Posts: 4
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Joined: March 24, 2004
Location: United States
Posted: June 13, 2005 at 11:13 PM / IP Logged  

why don't you download the subs technical data from eclipse

any sub i have bought had a white paper available with sealed. bandpass, and ported enclosure specifications

stevdart 
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Joined: January 24, 2004
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Posted: June 14, 2005 at 5:32 AM / IP Logged  

Question for you, kd7...what amount of real power are you planning to give those subs (what is the amp(s)) and at what final ohm load?  (My guess is 1 ohm with those subs...)    And is the alt a HO?  I ask these because although you said you're going for SPL it could be the case that you really mean just LOUD.  If you have enough power, 1000 to 1500 watts, and a powerplant under the hood that will produce the amperage, I would highly suggest building the small sealed enclosure that Eclipse recommends for these subs.  You'll have your system up and running weeks (or months) before you would if you learn everything you have to learn to build a proper vented box and will have better sound quality, too.

It's much easier to go through the stages with box-building experience from sealed to vented...and much safer for those expensive subwoofers.

Build the box so that it performs well in the worst case scenario and, in return, it will reward you at all times.
kd7nfr 
Copper - Posts: 71
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Joined: June 09, 2005
Location: United States
Posted: June 14, 2005 at 10:04 AM / IP Logged  
I'm going to be running a 200amp alternator, red top battery, 20 farad cap, then an Eclipse DA7232 4Kw amp.
I live in Montpelier Idaho, very rural aread, I have to dive 72 miles one way to get MDF.
DYohn 
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Joined: April 22, 2003
Location: Arizona, United States
Posted: June 14, 2005 at 10:41 AM / IP Logged  

In Montpelier there have to be hardware stores, and probebly a lumber yard or building supply store.  I know there is at least an Ace hardware there, or over in Ovid.  If they don't have MDF in stock they can certainly order it for you.  No need to drive to Pocatello (where I lived for three years, by the way!)

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