8NDM75T MID Drivers 8 inchs
Notes
- 3 INCH COPPER VOICE COIL
- 99.5 dB/SPL SENSITIVITY
- 600 WATT PROGRAM POWER HANDING
- IDEAL FOR DIRECT RADIATION AND HORN
-LOADED MIDRANFE APPLICATION
GENERAL SPECIFICATIONS
| Nominal diameter | 211(8) mm (in.) |
|---|---|
| Nominal impedance | 8 Ω |
| Minimum impedance | 7.3 Ω |
| Program power (1) | 600 W |
| AES Power rating(2) | 300 W |
| Sensitivity (3) | 99.5 dB |
| Frequency range | 207~4000 Hz |
| Voice coil diameter | 75(3) mm (in.) |
| Chassis material | Aluminium |
| Magnet material | Neodymium |
| Magnet dimensions (ODxIDxh) | 124X80X8 mm |
| Coil material | SVR |
| Former material | Glass Fiber |
| Xmax(4) | 2.8 mm |
| Xmech(5) | 3 mm |
| Gap height | 9 mm |
| Voice coil Winding height | 10.2 mm |
SMALL SIGNAL PARAMETERS
| DC resistance(Re) | 5.2 Ω |
|---|---|
| Resonance frequency(Fs) | 207.1 Hz |
| Moving mass(Mms) | 26.1 g |
| Compliance(Cms) | 0.02 mm/N |
| Force factor(BL) | 22.4 N/A |
| Mechanical Q-factor(Qms) | 5.72 |
| Electrical Q-factor(Qes) | 0.36 |
| Total Q-factor(Qts) | 0.34 |
| Equivalent air volume(Vas) | 1.8 I |
| Voice coil Inductance(Le) | 0.47 mH |
| Diaphragm area(Sd) | 220 cm2 |
| Reference efficiency(Eta O) | 4.3 % |
SHIPPING INFORMATION
| Net weight | 3.85 Kg |
|---|---|
| Multipack size (1) (W x D x H) | 258X230X150 mm |
| Multipack weight | 4.3 Kg |
OTHERS
(1)Program power is defined as 3 dB greater than AES Power.
(2) Tested for two hours using a
(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.
(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) TheXmech 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.