TritSub 10 - A modest 10" HT subwoofer design - AVS Forum | Home Theater Discussions And Reviews
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post #1 of 7 Old 08-17-2015, 10:53 PM - Thread Starter
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TritSub 10 - A modest 10" HT subwoofer design

So here is a subwoofer design I've been working on for a while. Its a modestly sized 10" sub enclosure that should work well with several different subs.

First off, here are some pics:



The goals of this system were to get as much performance from a ported 10" sub as possible while keeping the size of the enclosure reasonable. I wanted something that would have good output to the low 20's, but had a narrow enough profile I could hide it easily. Here are the specs of the enclosure:
Net volume: 2.0 Cubic feet
Tuning: 23 Hz
Port Area: 19.7 sq
External Dimensions: 12" W x 21.25" H x 24.75" D
External Volume: 3.65 Cubic Feet
Sub drivers that should work:
JBL GTO1014 (This is what I used)
Dayton UM10-22
Dayton RSS265HF
Infinity 1060W/1062W

Here is what it does:

This measurement was taken at 10 feet with 6.3 volts of input power and 1/12 octave smoothing. It should be very close to a 1W/1M measurement.

If anyone would be interested in building one for themselves it takes a little over 1/2 sheet of 3/4" plywood.
The cutlist is as follows:
Sides x 2 - 21.25 x 24.75
Top/Bottom x 2 - 10.5 x 24.75
Front x 1 - 10.5 x 17.875
Front doubler x 1 - 10.5 x 17.125
Back x 1 - 10.5 x 19.75
Lower port x 1 - 10.5 x 21.375
Upper port x 1 - 10.5 x 15.375
Braces x 2 - 10.5 x 2

This is the internal layout:

The port is 1.875" tall.

Here are some pics from the construction of mine:










I didn't get a picture of it, but the inside of the box is lined with felt. I rounded over the ends of the port panels and put a 1" roundover on the port mouth.
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post #2 of 7 Old 08-17-2015, 11:10 PM
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nice build.


with respect to your measurement. that is with no filters (eq/shelf/high or low pass), right? spl seems high. was it indoors?

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post #3 of 7 Old 08-17-2015, 11:20 PM - Thread Starter
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Measurement was with no filters and was taken outdoors. Closest building was over 50 feet away.

I agree that it seems a bit high, it could be something in my measurement setup, but I'm not sure what it would be. I had my volt meter hooked up during the test and voltage stayed right around 6.3 volts (+/- .2 volts) during the whole sweep.

The mic I'm using is a Dayton UMM-6 w/ calibration file.

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"Making bass is easy, making music is the hard part!"

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Last edited by the-jessman; 08-17-2015 at 11:24 PM.
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post #4 of 7 Old 08-18-2015, 12:41 AM
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is my eye seeing a small roundover on the baffle around the driver?

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post #5 of 7 Old 08-18-2015, 07:21 AM - Thread Starter
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Quote:
Originally Posted by LTD02 View Post
is my eye seeing a small roundover on the baffle around the driver?
Yes you are

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post #6 of 7 Old 08-18-2015, 10:37 AM
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Nice build!

Your chart indicates an F6 of around 20Hz so you achieved what you wanted. Throwing this one on my favorites file in case I want to add behind the couch subs.
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post #7 of 7 Old 08-18-2015, 10:44 AM
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Quote:
Originally Posted by the-jessman View Post
So here is a subwoofer design I've been working on for a while. Its a modestly sized 10" sub enclosure that should work well with several different subs.



First off, here are some pics:



That looks pretty familiar! Very nice build!
Mine uses a 10" Ultimax and is also 2 cu ft. Tuned to 23-24Hz.

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