Hi..dear all
let me introduce my self...I'm agus from indonesia
I have problem to build the box speaker..
I have sbacoustic driver and want to build the floorstanding speaker. But I dont know how to calculate and get the ideal size and volume of the box. I plan to make the 3 way speaker with that drivers.
For all master audio, help me please to calculate it.
Thanks a lot of.
Driver :
Woofer : SB accoustic 5 inch
Mid Woofer : SB accoustic 4inch
Twitter : vifa XT25TG30-04
T/S :
1. Woofer 5" SB15NRX C30-4
Nominal Impedance = 4 ohm
DC resistance, Re = 3,1 ohm
Voice coil inductance, Le = 0.12 mH
Effective piston area, Sd = 82 cm2
Voice coil diameter = 30.5 mm
Voice coil height = 15 mm
Air gap height = 5 mm
Linear coil travel (p-p) = 10 mm
Magnetic flux density = 1.0 T
Magnet weight = 0.54 kg
Net weight = 1.48 kg
Free air resonance, Fs = 41 Hz
Sensitivity (2.83 V/1m) = 91 dB
Mechanical Q-factor, Qms = 5.3
Electrical Q-factor, Qes = 0.31
Total Q-factor, Qts = 0.29
Moving mass incl.air, md = 8.6 g
Force factor, Bl = 4.7 tm
Equivalent volume, Vas = 16.7 liters
Compliance, Cms = 1.75 mm/N
Mechanical loss, Rm = 0.42 kg/s
Rated power handling = 50 watt
2. Woofer 4" SB12NRXF25-4
Nominal Impedance = 4 ohm
DC resistance, Re = 3,1 ohm
Voice coil inductance, Le = 0.27 mH
Effective piston area, Sd = 50 cm2
Voice coil diameter = 25.4 mm
Voice coil height = 15 mm
Air gap height = 5 mm
Linear coil travel (p-p) = 10 mm
Magnetic flux density = 0.84 T
Magnet weight = 0.32 kg
Net weight = 0.75 kg
Free air resonance, Fs = 61 Hz
Sensitivity (2.83 V/1m) = 87 dB
Mechanical Q-factor, Qms = 5.3
Electrical Q-factor, Qes = 0.53
Total Q-factor, Qts = 0.48
Moving mass incl.air, md = 5.8 g
Force factor, Bl = 3.6 tm
Equivalent volume, Vas = 4.1 liters
Compliance, Cms = 1.17 mm/N
Mechanical loss, Rm = 0.42 kg/s
Rated power handling = 30 watt
3. Twitter : vifa XT25TG30-04
Nominal Impedance = 4 ohm
Nominal impedance [ohm] 4
Voice coil resistance [ohm] 3.0
Nominal power [W] 140
Short term max power [W] 950
Long term max power [W] 400
Operating power [W] 5.3
Sensitivity [dB] 91.5
Frequency range [kHz] 1.5-40
Free air resonance [Hz] 500
Voice coil diameter [mm] 25
Voice coil height [mm] 2.2
Air gap height [mm] 3.2
Voice coil inductance [mH] -
Eff. diaphragm Area [cm²] 5.4
Moving mass [g] 0.30
Magnet weight [g]/[oz] 240/8.5
Force factor [Bl] 2.5
VAS [l] 0.017
Qms 2.50
Qes 0.71
Qts : 0.55
let me introduce my self...I'm agus from indonesia
I have problem to build the box speaker..
I have sbacoustic driver and want to build the floorstanding speaker. But I dont know how to calculate and get the ideal size and volume of the box. I plan to make the 3 way speaker with that drivers.
For all master audio, help me please to calculate it.
Thanks a lot of.
Driver :
Woofer : SB accoustic 5 inch
Mid Woofer : SB accoustic 4inch
Twitter : vifa XT25TG30-04
T/S :
1. Woofer 5" SB15NRX C30-4
Nominal Impedance = 4 ohm
DC resistance, Re = 3,1 ohm
Voice coil inductance, Le = 0.12 mH
Effective piston area, Sd = 82 cm2
Voice coil diameter = 30.5 mm
Voice coil height = 15 mm
Air gap height = 5 mm
Linear coil travel (p-p) = 10 mm
Magnetic flux density = 1.0 T
Magnet weight = 0.54 kg
Net weight = 1.48 kg
Free air resonance, Fs = 41 Hz
Sensitivity (2.83 V/1m) = 91 dB
Mechanical Q-factor, Qms = 5.3
Electrical Q-factor, Qes = 0.31
Total Q-factor, Qts = 0.29
Moving mass incl.air, md = 8.6 g
Force factor, Bl = 4.7 tm
Equivalent volume, Vas = 16.7 liters
Compliance, Cms = 1.75 mm/N
Mechanical loss, Rm = 0.42 kg/s
Rated power handling = 50 watt
2. Woofer 4" SB12NRXF25-4
Nominal Impedance = 4 ohm
DC resistance, Re = 3,1 ohm
Voice coil inductance, Le = 0.27 mH
Effective piston area, Sd = 50 cm2
Voice coil diameter = 25.4 mm
Voice coil height = 15 mm
Air gap height = 5 mm
Linear coil travel (p-p) = 10 mm
Magnetic flux density = 0.84 T
Magnet weight = 0.32 kg
Net weight = 0.75 kg
Free air resonance, Fs = 61 Hz
Sensitivity (2.83 V/1m) = 87 dB
Mechanical Q-factor, Qms = 5.3
Electrical Q-factor, Qes = 0.53
Total Q-factor, Qts = 0.48
Moving mass incl.air, md = 5.8 g
Force factor, Bl = 3.6 tm
Equivalent volume, Vas = 4.1 liters
Compliance, Cms = 1.17 mm/N
Mechanical loss, Rm = 0.42 kg/s
Rated power handling = 30 watt
3. Twitter : vifa XT25TG30-04
Nominal Impedance = 4 ohm
Nominal impedance [ohm] 4
Voice coil resistance [ohm] 3.0
Nominal power [W] 140
Short term max power [W] 950
Long term max power [W] 400
Operating power [W] 5.3
Sensitivity [dB] 91.5
Frequency range [kHz] 1.5-40
Free air resonance [Hz] 500
Voice coil diameter [mm] 25
Voice coil height [mm] 2.2
Air gap height [mm] 3.2
Voice coil inductance [mH] -
Eff. diaphragm Area [cm²] 5.4
Moving mass [g] 0.30
Magnet weight [g]/[oz] 240/8.5
Force factor [Bl] 2.5
VAS [l] 0.017
Qms 2.50
Qes 0.71
Qts : 0.55