eclipse 87121.8
Printed From: the12volt.com
Forum Name: Car Audio
Forum Discription: Car Stereos, Amplifiers, Crossovers, Processors, Speakers, Subwoofers, etc.
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=122774
Printed Date: May 15, 2024 at 6:39 PM
Topic: eclipse 87121.8
Posted By: gman91
Subject: eclipse 87121.8
Date Posted: July 21, 2010 at 6:33 AM
Does anyone know what kind of how big and what type of enclosure i should put my 2 Eclipse 87121.8 subs in?
Fs 27Hz
Qts 0.43
DCR 7.2Ω
Vas 1.95 Cuft
Xmax (one way) 0.73˝
Continuous Power Handling 300W
Music Power Handling 600w
Those are the only specs i could find on the subs.
Replies:
Posted By: DYohn
Date Posted: July 21, 2010 at 10:21 AM
Load both subs in a single enclosure, either sealed 2.3 cuft net, or ported 4.8 cuft net with port tuned to about 25Hz. The subs can handle 300 watts each. ------------- Support the12volt.com
Posted By: gman91
Date Posted: July 21, 2010 at 1:33 PM
Is there any programs i can use to help build a box to those specs? The box i have now ( outer dimensions ) are L 34 3/8 in x W 15 3/4 in x H 14 in, the box is 3/4 mdf board.
Posted By: gman91
Date Posted: July 21, 2010 at 1:34 PM
My box now is a R/T, slot ported.
Posted By: DYohn
Date Posted: July 21, 2010 at 2:03 PM
gman91 wrote:
Is there any programs i can use to help build a box to those specs? The box i have now ( outer dimensions ) are L 34 3/8 in x W 15 3/4 in x H 14 in, the box is 3/4 mdf board.
https://www.the12volt.com/caraudio/boxcalcs.asp ------------- Support the12volt.com
Posted By: gman91
Date Posted: July 21, 2010 at 2:15 PM
I'm a noob when it comes to how to determine a box size + port size. If the box is 4.8 cubic ft with a port, what should the demensions be LxWxD ? how wide / tall / deep should i make the port?
Posted By: gman91
Date Posted: July 21, 2010 at 2:40 PM
I called eclipse they say the box sizes are SPL .45 or .85 ft3 Boomy bass 1.5 1.75 ft 3, So if that is sealed how big ported? they said the recommend sealed enclosures.
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