Hi,
I may have a spare 10" car sub driver from JL Audio (10W7) that I'd like to use to build a home sub for my son's apartment, probably powered by a 300-500W plate amp (Dayton or Bash from PE). These are the parameters:
Free Air Resonance (Fs): 30.6 Hz
Electrical “Q” (Qes): 0.578
Mechanical “Q” (Qms): 7.647
Total Speaker “Q” (Qts): 0.537
Equivalent Compliance (Vas): 1.28 cu. ft. / 36.1 liters
One-Way, Linear Excursion (Xmax)*: 0.9 in. / 23 mm
Reference Efficiency (no): 0.171%
Efficiency (1W/1m)**: 84.3 dB SPL
Effective Piston Area (Sd): 59.8 sq. in. / 0.0386 sq. m.
DC Resistance (Re): 2.75 ohm
Nominal Impedance (Znom): 3 ohm
Thermal Power Handling (Pt): 750W
Driver Displacement: 0.09 cu. ft. / 2.5 liters
Net Weight: 30 lbs. / 13.6 kg
If I were to build a stand-alone sub, I'd probably go no bigger than 15x15x15. What kind of low frequency extension can I expect with either a sealed or a ported design in such a box?
My other option is to build him a coffee table sub, probably about 30x30x12 (with 3-5" legs), which is roughly 6cft. This could be a ported design with the sub downfiring into the floor (which would be better, carpet or hardwoood?). How much better low frequency extension would that give me?
Or should I just buy him a 10" Dayton HT sub for $230 and sell the JL Audio?
Thanks,
Frank
I may have a spare 10" car sub driver from JL Audio (10W7) that I'd like to use to build a home sub for my son's apartment, probably powered by a 300-500W plate amp (Dayton or Bash from PE). These are the parameters:
Free Air Resonance (Fs): 30.6 Hz
Electrical “Q” (Qes): 0.578
Mechanical “Q” (Qms): 7.647
Total Speaker “Q” (Qts): 0.537
Equivalent Compliance (Vas): 1.28 cu. ft. / 36.1 liters
One-Way, Linear Excursion (Xmax)*: 0.9 in. / 23 mm
Reference Efficiency (no): 0.171%
Efficiency (1W/1m)**: 84.3 dB SPL
Effective Piston Area (Sd): 59.8 sq. in. / 0.0386 sq. m.
DC Resistance (Re): 2.75 ohm
Nominal Impedance (Znom): 3 ohm
Thermal Power Handling (Pt): 750W
Driver Displacement: 0.09 cu. ft. / 2.5 liters
Net Weight: 30 lbs. / 13.6 kg
If I were to build a stand-alone sub, I'd probably go no bigger than 15x15x15. What kind of low frequency extension can I expect with either a sealed or a ported design in such a box?
My other option is to build him a coffee table sub, probably about 30x30x12 (with 3-5" legs), which is roughly 6cft. This could be a ported design with the sub downfiring into the floor (which would be better, carpet or hardwoood?). How much better low frequency extension would that give me?
Or should I just buy him a 10" Dayton HT sub for $230 and sell the JL Audio?
Thanks,
Frank
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