(2) Infinity REF1262W, 9 ft3, 18 Hz tune, BASH 500W - Home Theater Forum and Systems - HomeTheaterShack.com

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post #1 of 22 Old 03-28-14, 01:00 AM Thread Starter
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(2) Infinity REF1262W, 9 ft3, 18 Hz tune, BASH 500W

(2) Infinity REF1262W, 9 ft3 (net), 18 Hz tune, BASH 500W

F3 at 22 Hz. F6 at 17 Hz.


(2) Infinity REF1262W, 9 ft3, 18 Hz tune, BASH 500W-fr.jpg


107 dB at 16 Hz. 111 dB at 20 Hz. 115 dB at 40 Hz. All 1 m GP. SPL is shown at Xmax (13 mm) of drivers.


(2) Infinity REF1262W, 9 ft3, 18 Hz tune, BASH 500W-spl.jpg


Stock Bash HPF (Fc 17.36, Q 0.817) is included for all graphs.


(2) Infinity REF1262W, 9 ft3, 18 Hz tune, BASH 500W-cone.jpg


Peak port velocity of 23.5 m/s.


(2) Infinity REF1262W, 9 ft3, 18 Hz tune, BASH 500W-vent.jpg


(2) Infinity REF1262W, 9 ft3, 18 Hz tune, BASH 500W-sketch.jpg


Complete WinISD project file attached.

1 5/8" Spax MDF screws and Titebond II are being used. The SPAX screws are especially made for use in MDF. They do not require pre-dilling and testing revealed they do not split the MDF as long as they are placed at least 2" in from any corner. Acrylic urethane caulk was used to secure the port tube in place. T-nuts for the drivers had a dab of Gorilla glue placed on them to prevent any possibility of movement.


(2) Infinity REF1262W, 9 ft3, 18 Hz tune, BASH 500W-img_20140325_120918532.jpg

Last edited by areyou4real; 04-12-14 at 09:56 PM.
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post #2 of 22 Old 03-28-14, 04:48 AM
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Re: (2) Infinity REF1262W, 9 ft3, 18 Hz tune, BASH 500W

Any vertical braces going in?

"Music is the space between the notes"
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post #3 of 22 Old 03-28-14, 03:54 PM Thread Starter
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Re: (2) Infinity REF1262W, 9 ft3, 18 Hz tune, BASH 500W

No vertical braces.

A 3/8" round over bit was used on all edges. All screw holes were then sanded flush using 120 grit. The entire surface area of the enclosure was also scuff sanded with 120 grit to help with primer adhesion. It has taken several applications of Ready Patch to completely fill the screw holes due to some minor shrinkage. Ready Patch was also applied along the seams and edges as needed to ensure smooth transitions.


(2) Infinity REF1262W, 9 ft3, 18 Hz tune, BASH 500W-img_3583.jpg

Last edited by areyou4real; 04-12-14 at 09:52 PM.
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post #4 of 22 Old 03-28-14, 04:21 PM
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Re: (2) Infinity REF1262W, 9 ft3, 18 Hz tune, BASH 500W

Looks great I bet you can't wait to fire that puppy up.....

Onkyo TX-NR809 HT receiver
HPS-4000,SR-70, John Allen, Klipsch Heresy, Speakers for L.C.R.
QSC GX-5 power amp for L+R mains
Chase Home Theater PRO-10's for surrounds
Behringer EP 4000 pro amp for the Danley DTS-10 tapped horn sub
Oppo BDP-93 universal BD player
Toshiba HD XA2 HD dvd player
Sony VW-VPLPRO1 1080p PJ
Cinema White 1.0 gain 106" fixed frame screen
Dish network with 2 Hoppers and 1 Joey
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post #5 of 22 Old 03-31-14, 03:37 PM Thread Starter
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Re: (2) Infinity REF1262W, 9 ft3, 18 Hz tune, BASH 500W

All screw holes, edges, and seams have been detail sanded with 180 grit. It's now ready for 2 coats of primer, which will be Zinsser Cover Stain (oil base). ~20 hours of labor to date. ~5 hours was filling/sanding screw holes, edges, and seams.

(2) Infinity REF1262W, 9 ft3, 18 Hz tune, BASH 500W-img_3590.jpg

(2) Infinity REF1262W, 9 ft3, 18 Hz tune, BASH 500W-img_3591.jpg

(2) Infinity REF1262W, 9 ft3, 18 Hz tune, BASH 500W-img_3592.jpg

Last edited by areyou4real; 04-05-14 at 10:22 AM.
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post #6 of 22 Old 03-31-14, 04:38 PM
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Re: (2) Infinity REF1262W, 9 ft3, 18 Hz tune, BASH 500W

Truly a labor of love.

"Music is the space between the notes"
[T]o talk well and eloquently is a very great art, but that an equally great one is to know the right moment to stop.
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post #7 of 22 Old 04-01-14, 01:32 PM Thread Starter
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Re: (2) Infinity REF1262W, 9 ft3, 18 Hz tune, BASH 500W

Texture is coming out just how I was hoping it would with 2 coats of Cover Stain rolled on with a 6" x 1/4" nap roller. At 18 hours post-application, the primer is already very dry and could be lightly sanded.

(2) Infinity REF1262W, 9 ft3, 18 Hz tune, BASH 500W-img_3597.jpg

(2) Infinity REF1262W, 9 ft3, 18 Hz tune, BASH 500W-img_3598.jpg
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post #8 of 22 Old 04-01-14, 01:48 PM
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Re: (2) Infinity REF1262W, 9 ft3, 18 Hz tune, BASH 500W

Looking good!




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post #9 of 22 Old 04-01-14, 04:24 PM
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Re: (2) Infinity REF1262W, 9 ft3, 18 Hz tune, BASH 500W

Excellent job.

"Music is the space between the notes"
[T]o talk well and eloquently is a very great art, but that an equally great one is to know the right moment to stop.
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post #10 of 22 Old 04-04-14, 10:03 PM Thread Starter
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Re: (2) Infinity REF1262W, 9 ft3, 18 Hz tune, BASH 500W

Done; listening to it as I type this, but still have not had a chance to calibrate it. I will likely do that after "breaking it in" a bit.

Exterior dimensions (not including 1.5" tall feet) are 54" tall x 24" wide x 16" deep.
Assembled weight is ~125 lbs.
Total build time was ~35 hours.
Total build cost was ~$600.

I think my nickname for it will be the "Tower of Power". It reminds me a bit of the mysterious black monolith from 2001: A Space Odyssey!

Build log:

The (2) 4-ohm voicecoils in each driver were wired in series to give an 8-ohm load per driver. Readily available 16-gauge lamp cable was used and worked great due its low resistance at these lengths.


(2) Infinity REF1262W, 9 ft3, 18 Hz tune, BASH 500W-img_3600.jpg

(2) Infinity REF1262W, 9 ft3, 18 Hz tune, BASH 500W-img_3602.jpg


(2) 3.5" layers of fiberglass insulation (R-13) were put on the bottom of the enclosure. This was done to counter the primary 129 Hz (1/2 wavelength) height resonance due to the internal 52.5" height. It may also help some with higher harmonics. All other primary enclosure resonances are well above the crossover point, so no other absorptive material was placed. The second layer of insulation was cut in the shape of an "H" to clear the basket and magnet structures.


(2) Infinity REF1262W, 9 ft3, 18 Hz tune, BASH 500W-img_3604.jpg

(2) Infinity REF1262W, 9 ft3, 18 Hz tune, BASH 500W-img_3613.jpg


All wiring was securely attached and ran clear of anything that it could slap or vibrate on. Each 8-ohm driver was connected in parallel to yield a stable 4-ohm load for the plate amp.


(2) Infinity REF1262W, 9 ft3, 18 Hz tune, BASH 500W-img_3608.jpg

(2) Infinity REF1262W, 9 ft3, 18 Hz tune, BASH 500W-img_3622.jpg


All assembled.


(2) Infinity REF1262W, 9 ft3, 18 Hz tune, BASH 500W-img_3642.jpg

(2) Infinity REF1262W, 9 ft3, 18 Hz tune, BASH 500W-img_3645.jpg


Texture from 1/4" nap roller. 3 coats of Olympic One latex eggshell were applied over 2 coats of Zinsser Cover Stain primer. Primer was sanded fairly flat prior to applying top coats to keep the rolled texture from getting too aggressive.


(2) Infinity REF1262W, 9 ft3, 18 Hz tune, BASH 500W-img_3647.jpg


For size reference that is a 65" plasma and a SVS 20-39 PC+; the sub being replaced by this DIY.


(2) Infinity REF1262W, 9 ft3, 18 Hz tune, BASH 500W-img_3652.jpg

Last edited by areyou4real; 04-05-14 at 10:48 AM.
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