Hi,
guys my first attempt in making a subwoofer.
The Technical Side of the SUB
Ported
BOX VOLUME 68L
PORTS 3X 3inch X 25inch (this keeps the port noise below 17m/sec even at 300W)
Group Delay ~ <20msec at 20 Hz
F3 26Hz
Sealed
F3 - 40hz
Otc 0.626
The box is built such that it can also be used as sealed with all the ports closed.
regards
guys my first attempt in making a subwoofer.
The Technical Side of the SUB
Ported
BOX VOLUME 68L
PORTS 3X 3inch X 25inch (this keeps the port noise below 17m/sec even at 300W)
Group Delay ~ <20msec at 20 Hz
F3 26Hz
Sealed
F3 - 40hz
Otc 0.626
The box is built such that it can also be used as sealed with all the ports closed.
regards
Attachments
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TRANSFER FUNCTION MAGNITUDE.JPG77 KB · Views: 423
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SPL.JPG97.8 KB · Views: 413
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REAR PORT AIR VELOCITY.JPG75.8 KB · Views: 399
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GROUP DELAY.JPG76.4 KB · Views: 396
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CONE EXCURSION.JPG92.7 KB · Views: 403
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IMG_20170531_122843.jpg36.7 KB · Views: 227
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IMG_20170531_233205.jpg36.5 KB · Views: 271
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IMG_20170605_194720.jpg27.8 KB · Views: 267
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IMG_20170605_175818.jpg29 KB · Views: 248
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IMG_20170605_200031.jpg29.6 KB · Views: 238