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Sonotube With 12" Infinity 1250w Driver

3K views 1 reply 2 participants last post by  JCD 
#1 ·
Hello everyone. I am interested in buiding the Sonotube, but I have no measureing equipment and don't know what dimensions it should be or what kind of crossover it would need. Can you point Me in the right direction? I would like it to go as low as possible for HT. I already have the driver. Thanks.
 
#2 ·
I'm not sure this would be an appropriate driver for a HT setup (it's built for autos).
If it's ok (and I really have no idea) can someone tell me if you can use WinISD to calculate the internal value just like a regular box sub? Or is there something with the sonotube that makes it different?

If it's the same, the T/S parameters per Inifinity are as follows:
THIELE-SMALL PARAMETERS
VOICE COIL DC RESISTANCE: REVC (OHMS) 3.40
VOICE COIL INDUCTANCE @ 1 KHZ: LEVC (MH) 2.54
DRIVER RADIATING AREA: SD (IN2) 82.46
SD (M2) 532.00
MOTOR FORCE FACTOR: BL (TM) 14.24
COMPLIANCE VOLUME: VAS (FT3) 3.00
VAS (LITERS) 84.40
SUSPENSION COMPLIANCE: CMS (µM/N) 210.00
MOVING MASS, AIR LOAD: MMS (GRAMS) 187.60
MOVING MASS, DIAPHRAGM: MMD (GRAMS) 180.60
FREE-AIR RESONANCE: FS (HZ) 25.40
MECHANICAL Q: QMS 7.62
ELECTRICAL Q: QES 0.50
TOTAL Q: QTS 0.47
MAGNETIC-GAP HEIGHT: HAG (IN) 3/8
HAG (MM) 9.00
VOICE-COIL HEIGHT: HVC (IN) 1-1/4
HVC (MM) 32
MAXIMUM EXCURSION: XMAX (IN) 7/16
XMAX (MM) 11.50
 
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