driver replacement for hsu sft-1? - AVS Forum
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post #1 of 6 Old 02-13-2013, 09:15 AM - Thread Starter
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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
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post #2 of 6 Old 02-13-2013, 09:31 AM
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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.

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post #3 of 6 Old 02-13-2013, 10:19 AM - Thread Starter
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Yes I understand this. I figured someone would know this considering the popularity of the products in question.
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post #4 of 6 Old 02-13-2013, 10:21 AM - Thread Starter
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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
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post #5 of 6 Old 02-13-2013, 10:25 AM - Thread Starter
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I think the woofer may still be covered under warranty.
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post #6 of 6 Old 02-14-2013, 05:13 PM
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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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