I traded for these with Tyroneshoes and will not be using them. They are used
Specs
Seas H1224 7" aluminum cone woofer. The stiff cone coupled with the low loss rubber surround shows no sign of cone edge resonance and distortion associated with soft cones. Tremendous bass precision. A bullet shaped phase plug reduces compression due to temperature variations in the voice coil, avoids resonance problems which would occur in the volume between the dust cap and pole piece and increases long term power handling. Large magnet for good efficiency. Raised Spider and bumped back plate for increased power handling and lower mechanical distortion.
Outside diameter 176mm
Cut out 145.2mm
Depth 80mm
25.4mm = 1" = 2.54cm
Nominal Impedance 8 Ohms
Recom. frequency range 40-2500 Hz
Short term max. power 250 W
Long term max. Power 100 W
Sensitivity (1W/1m) 87 dB
Voice Coil Diameter 39 mm
Voice coil height 18.0 mm
Air gap height 6.0 mm
Linear coil travel (p-p) 12.0 mm
Max. coil travel (p-p) 22.0 mm
Magnet weight 0.64 Kg
Total weight 1.92 Kg
Voice coil resistance 6.1 Ohms
Voice coil inductance 1.0 mH
Force factor 6.7 N/A
Free air resonance 33 Hz
Moving mass 14 g
Suspension compliance 1.7 mm/N
Suspension mech. resistance 1.6 Ns/m
Effective piston area 126 sq. cm
Vas 35.0 Liters
Qms 1.89
Specs
Seas H1224 7" aluminum cone woofer. The stiff cone coupled with the low loss rubber surround shows no sign of cone edge resonance and distortion associated with soft cones. Tremendous bass precision. A bullet shaped phase plug reduces compression due to temperature variations in the voice coil, avoids resonance problems which would occur in the volume between the dust cap and pole piece and increases long term power handling. Large magnet for good efficiency. Raised Spider and bumped back plate for increased power handling and lower mechanical distortion.
Outside diameter 176mm
Cut out 145.2mm
Depth 80mm
25.4mm = 1" = 2.54cm
Nominal Impedance 8 Ohms
Recom. frequency range 40-2500 Hz
Short term max. power 250 W
Long term max. Power 100 W
Sensitivity (1W/1m) 87 dB
Voice Coil Diameter 39 mm
Voice coil height 18.0 mm
Air gap height 6.0 mm
Linear coil travel (p-p) 12.0 mm
Max. coil travel (p-p) 22.0 mm
Magnet weight 0.64 Kg
Total weight 1.92 Kg
Voice coil resistance 6.1 Ohms
Voice coil inductance 1.0 mH
Force factor 6.7 N/A
Free air resonance 33 Hz
Moving mass 14 g
Suspension compliance 1.7 mm/N
Suspension mech. resistance 1.6 Ns/m
Effective piston area 126 sq. cm
Vas 35.0 Liters
Qms 1.89
