Skoda
09-19-2006, 05:07 PM
Hello to all those on this great forum
I was wondering if some of you would be kind enough to help me out:) with box perameteurs for a subwoofer. I'am really not sure were'd I'd start...sealed,ported(bassreflex),bandpass, though most of the designs here are ported so they must be onto something;) unfortunitly there is a catch...:p its not a JBL sub...(gifts are great:applaud: ) I know theres other forums out there for this stuff but I've been reading in alot on this forum and the know how of this forum as a hole, and personaly theres none other that comes close:bouncy:
Of course these sub's(2) built in seaperate box's will be for Home theare use, covering the low end of my HT4V's that will soon be were they belong...My Home:applaud: :D The room they well be located it is quite large 13x25x12ft
Free Air Resonace.......................................... .....Fs 30.2Hz
Volume Acoustic Suspension.................................Vas 1.15Ft^3
Total Q................................................. ............Qts .50
Electrical Q................................................. .......Qes .55
Mechanical Q................................................. ....Qms 4.97
Dc resistance........................................ .............Re 1.84ohms
Linear Excursion (one way)...................................Xmax .49"
Effective Piston Diameter......................................D 8.634
RMS power handling.......................................... ...RMS 400watts
Recomended amplifier P........................................RMS 75-400
Sensitivity 1W/m................................................. SPLo 84.3
Reference Efficiency........................................ ....No 0.16%
Frequency Responce.......................................... .28-150Hz
Voice Coil Inductance........................................ ..Le 1.0mH
Gap Hieght............................................ ..............393"
Voice Coil Diameter.......................................... ....2.5"
Voice Coil Height............................................ .....1.246"
Magnet Weight............................................ .......102oz
Motor Force............................................. ..........BL 10.41 Tm
Compliance........................................ ................Cms .163 mm/N
Total Moving Mass.............................................. Mms 170.8g
Moving Mass of Driver..........................................Mm d 166.5g
Suspension Losses............................................ ..Rms 6.51
Effective Surface Area.........................................Sd 58.5 in^2
speaker diplacement(inside box).............................195in^2
speaker dissplacement(outside box)........................134in^2
Not sure if you guys will need all these spec's but better to have then not:p
Best Regards
Skoda
I was wondering if some of you would be kind enough to help me out:) with box perameteurs for a subwoofer. I'am really not sure were'd I'd start...sealed,ported(bassreflex),bandpass, though most of the designs here are ported so they must be onto something;) unfortunitly there is a catch...:p its not a JBL sub...(gifts are great:applaud: ) I know theres other forums out there for this stuff but I've been reading in alot on this forum and the know how of this forum as a hole, and personaly theres none other that comes close:bouncy:
Of course these sub's(2) built in seaperate box's will be for Home theare use, covering the low end of my HT4V's that will soon be were they belong...My Home:applaud: :D The room they well be located it is quite large 13x25x12ft
Free Air Resonace.......................................... .....Fs 30.2Hz
Volume Acoustic Suspension.................................Vas 1.15Ft^3
Total Q................................................. ............Qts .50
Electrical Q................................................. .......Qes .55
Mechanical Q................................................. ....Qms 4.97
Dc resistance........................................ .............Re 1.84ohms
Linear Excursion (one way)...................................Xmax .49"
Effective Piston Diameter......................................D 8.634
RMS power handling.......................................... ...RMS 400watts
Recomended amplifier P........................................RMS 75-400
Sensitivity 1W/m................................................. SPLo 84.3
Reference Efficiency........................................ ....No 0.16%
Frequency Responce.......................................... .28-150Hz
Voice Coil Inductance........................................ ..Le 1.0mH
Gap Hieght............................................ ..............393"
Voice Coil Diameter.......................................... ....2.5"
Voice Coil Height............................................ .....1.246"
Magnet Weight............................................ .......102oz
Motor Force............................................. ..........BL 10.41 Tm
Compliance........................................ ................Cms .163 mm/N
Total Moving Mass.............................................. Mms 170.8g
Moving Mass of Driver..........................................Mm d 166.5g
Suspension Losses............................................ ..Rms 6.51
Effective Surface Area.........................................Sd 58.5 in^2
speaker diplacement(inside box).............................195in^2
speaker dissplacement(outside box)........................134in^2
Not sure if you guys will need all these spec's but better to have then not:p
Best Regards
Skoda