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-   Subwoofers, Bass, and Transducers (http://www.avsforum.com/forum/113-subwoofers-bass-transducers/)
-   -   driver replacement for hsu sft-1? (http://www.avsforum.com/forum/113-subwoofers-bass-transducers/1458037-driver-replacement-hsu-sft-1-a.html)

roccol 02-13-2013 09:15 AM

I recently replaced the plate amps on two HSU SFT-1s(both were blown). The amps work great. However, one of the drivers are somewhat blown. These do not look like the greatest drivers, so I'm not looking to spend a bunch of money and buying from HSU at this point is out of the question. I am looking for an adequate replacement driver for the faulty unit. Does anyone know if something like below will work well?:

http://www.parts-express.com/pe/showdetl.cfm?partnumber=295-484

http://www.parts-express.com/pe/showdetl.cfm?partnumber=295-200

Bill Fitzmaurice 02-13-2013 09:31 AM

The only way to know what will work in the cabinet is via software response modeling of the cab. The only way to know if something might work better than the original driver is to software model it, which requires knowing the T/S specs on the driver.

roccol 02-13-2013 10:19 AM

Yes I understand this. I figured someone would know this considering the popularity of the products in question.

roccol 02-13-2013 10:21 AM

http://www.parts-express.com/pe/showdetl.cfm?partnumber=295-484

THIELE-SMALL PARAMETERS
Resonant Frequency (Fs) 31 Hz
DC Resistance (Re) 3.2 ohms
Voice Coil Inductance (Le) 1.16 mH
Mechanical Q (Qms) 3.10
Electromagnetic Q (Qes) 0.45
Total Q (Qts) 0.39
Compliance Equivalent Volume (Vas) 1.35 ft.³
Mechanical Compliance of Suspension (Cms) 0.62 mm/N
BL Product (BL) 7.7 Tm
Diaphragm Mass Inc. Airload (Mms) 42.4g
Maximum Linear Excursion (Xmax) 6 mm
Surface Area of Cone (Sd) 208.7 cm²

http://www.parts-express.com/pe/showdetl.cfm?partnumber=295-200

THIELE-SMALL PARAMETERS
Resonant Frequency (Fs) 30.2 Hz
DC Resistance (Re) 3.53 ohms
Voice Coil Inductance (Le) 1.76 mH
Mechanical Q (Qms) 5.86
Electromagnetic Q (Qes) 0.35
Total Q (Qts) 0.33
Compliance Equivalent Volume (Vas) 1.19 ft.³
Mechanical Compliance of Suspension (Cms) 0.53 mm/N
BL Product (BL) 10.1 Tm
Diaphragm Mass Inc. Airload (Mms) 52.5g
Maximum Linear Excursion (Xmax) 8.8 mm
Surface Area of Cone (Sd) 213.8 cm²

roccol 02-13-2013 10:25 AM

I think the woofer may still be covered under warranty.

cel4145 02-14-2013 05:13 PM

I think HSU's drivers are warrantied for 7 years, aren't they?

Meanywhile, if you've blown two amplifiers and one driver, sounds like you need bigger subs. smile.gif


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