3.5NFS25B-8 LF Drivers 3.5 inchs
Notes
- 1 INCH EDGEWOUND CCA VOICE COIL
- 87.6 dB/SPL SENSITIVITY
- 60 WATT PROGRAM POWER HANDING
- FEM OPTIMIZED MOTOR AND SUSPENSIONS
- OPTIMIZED COOLING SYSTEM
- DOUBLE SPIDER
- RESONANCE FREE AND HEAVY DUTY BASKET DESIGN
- PP PAPER CONE FULLY WATERPROOF
GENERAL SPECIFICATIONS
| Nominal diameter | 94.1(3.5) mm (in.) |
|---|---|
| Nominal impedance | 8 Ω |
| Minimum impedance | 7 Ω |
| Program power (1) | 60 W |
| AES Power rating(2) | 30 W |
| Sensitivity (3) | 87.6 dB |
| Frequency range | 116~22000 Hz |
| Voice coil diameter | 25.4(1) mm (in.) |
| Chassis material | Aluminium |
| Magnet material | Neodymium |
| Magnet dimensions (ODxIDxh) | 24.5x8 1pc mm |
| Coil material | CCAW |
| Xmax(4) | 1.75 mm |
| Xmech(5) | 2.75 mm |
| Gap height | 4 mm |
| Voice coil Winding height | 5.5 mm |
SMALL SIGNAL PARAMETERS
| DC resistance(Re) | 6.4 Ω |
|---|---|
| Resonance frequency(Fs) | 116 Hz |
| Moving mass(Mms) | 3.3 g |
| Compliance(Cms) | 0.55 mm/N |
| Force factor(BL) | 3.6 N/A |
| Mechanical Q-factor(Qms) | 2.8 |
| Electrical Q-factor(Qes) | 1.1 |
| Total Q-factor(Qts) | 0.78 |
| Equivalent air volume(Vas) | 1.9 I |
| Voice coil Inductance(Le) | 0.8 mH |
| Diaphragm area(Sd) | 50 cm2 |
| Reference efficiency(Eta O) | 0.51 % |
SHIPPING INFORMATION
| Net weight | 6.6 Kg |
|---|---|
| Multipack size (1) (W x D x H) | 445 x 342 x 216 (36) mm |
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
(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.
(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.