8NDF65M1 LF Drivers 8 inchs
Notes
- 2.5 INCH EDGEWOUND CCA VOICE COIL
- 95.3 dB/SPL SENSITIVITY
- 500 WATT PROGRAM POWER HANDING
- FEM OPTIMIZED MOTOR AND SUSPENSIONS
- OPTIMIZED COOLING SYSTEM
- RESONANCE FREE AND HEAVY DUTY BASKET DESIGN
- 95.3 dB/SPL SENSITIVITY
- 500 WATT PROGRAM POWER HANDING
- FEM OPTIMIZED MOTOR AND SUSPENSIONS
- OPTIMIZED COOLING SYSTEM
- RESONANCE FREE AND HEAVY DUTY BASKET DESIGN
GENERAL SPECIFICATIONS
Nominal diameter | 203-213(8) mm (in.) |
---|---|
Nominal impedance | 8 Ω |
Minimum impedance | 6.3 Ω |
Program power (1) | 500 W |
AES Power rating(2) | 250 W |
Sensitivity (3) | 95.3 dB |
Frequency range | 68~4500 Hz |
Voice coil diameter | 65(2.5) mm (in.) |
Chassis material | Aluminium |
Magnet material | Neodymium |
Magnet dimensions (ODxIDxh) | 64x10x10 1pc mm |
Coil material | CCAW |
Former material | Glass Fiber |
Xmax(4) | 5 mm |
Xmech(5) | 9 mm |
Gap height | 8 mm |
Voice coil Winding height | 14 mm |
SMALL SIGNAL PARAMETERS
DC resistance(Re) | 5 Ω |
---|---|
Resonance frequency(Fs) | 68 Hz |
Moving mass(Mms) | 28 g |
Compliance(Cms) | 0.20 mm/N |
Force factor(BL) | 14.2 N/A |
Mechanical Q-factor(Qms) | 4.32 |
Electrical Q-factor(Qes) | 0.35 |
Total Q-factor(Qts) | 0.32 |
Equivalent air volume(Vas) | 22 I |
Voice coil Inductance(Le) | 0.73 mH |
Diaphragm area(Sd) | 248 cm2 |
Reference efficiency(Eta O) | 1.9 % |
SHIPPING INFORMATION
Net weight | 2.4 Kg |
---|---|
Multipack size (1) (W x D x H) | 225x225x152 mm |
Multipack weight | 2.7 Kg |
OTHERS
(1)Program power is defined as 3 dB greater than AES Power.
(2) Tested for two hours using a continuous, band-limited pink noise signal as per AES 2-1984 Rev. 2003. Loudspeaker tested in free air.
(3) From T/S parameters, measured with LMS DA LPM module.
(4) The Xmax is calculated as: (Hvc - Hg)/2+ Hg/4. Hvc is the voice coil height and Hg the gap height.
(5) The Xmech is calculated as: (Hvc - Hg)/2 +(Hg-2). Hvc is the voice coil height and Hg the gap height.
(6) Thiele-Small parameters are measured after preconditioning: a) at 20°C- 22°C, 50% humidity for 2 hours; b) by LMS LSI measurement.
(2) Tested for two hours using a continuous, band-limited pink noise signal as per AES 2-1984 Rev. 2003. Loudspeaker tested in free air.
(3) From T/S parameters, measured with LMS DA LPM module.
(4) The Xmax is calculated as: (Hvc - Hg)/2+ Hg/4. Hvc is the voice coil height and Hg the gap height.
(5) The Xmech is calculated as: (Hvc - Hg)/2 +(Hg-2). Hvc is the voice coil height and Hg the gap height.
(6) Thiele-Small parameters are measured after preconditioning: a) at 20°C- 22°C, 50% humidity for 2 hours; b) by LMS LSI measurement.