Here's an easy to build 2 way 15" bass reflex cabinet ideal for a starter system... A pair of these will work ok on their own, or you can use them as bins to re-inforce your bottom and bottom-mid end, leaving out the tweeters if you like...
Use tha pair of these with any stereo power amp up to 500 watts per channel... but ease the volume in huh!... dont blow the things up!
You can build another pair, and add them together with the first pair for more power.
Not too much to say about these... a simple refex, easy to build... just note the large Bracing Strut sheet that runs right down the center vertical line inside the cab....This is made from the same 3/4" sheet as the cabinet..
That's it.... It's real simple.... just pay attention to the port size..... Enjoy !
| LOUDSPEAKERS |
15" BASS - ANY TREBLE UNIT OF CHOICE |
| PERFORMANCE |
From between 35 Hz to 60 Hz, UP TO 20 KHz, with 99db to 104db sensitivity for 1 watt,1 metre depending on speaker model selected.
Good bass with smooth mid-range |
| CONSTRUCTION |
Easy !!
Bracing is VERY important, so make it solid. Select the Duct measurement to suit the bass loudspeakers resonance
If you add a tweeter or horn, just position and cut out the hole... positioning is not critical. |
| MATERIALS |
1 X sheet of 18mm, 3/4", 8' X 4' board (2438 X 1219) |
SPECIAL NOTES - DUCTING SIZE
| RESONANCE OF LOUDSPEAKER |
DIM. 'A' |
DIM. 'B' |
| 40 HZ |
3.1/4" inches |
1" inch |
| 45 HZ |
0 |
5/8th" inch |
| 55 HZ |
0 |
1.3/16th" inch |
| 60 HZ |
0 |
5/8th" inch |
| 65 HZ |
0 |
2" inches |
| 70 HZ |
0 |
2.1/2" inches |
[plans will print out to an A4 page]
(very important to read this !!)
Good luck & happy building!
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