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SL 70 NDV - 4 Ohm

Art. No. 2274

6.5 cm (2.5") full-range speaker with balanced frequency response and increased high-range. Especially suitable as built-in speaker for music and speech reproduction and as driver for slim PA column systems. Water-resistant and robust construction due to various plastic materials. Thanks neodymium extremely light and compact.

 

*) IP protection class for front side when built into a sealed enclosure

Typical applications
  • Narrow network column speakers
  • Model construction
  • Control speaker for electronic devices
  • Electronic musical instruments
*Gross price for private customers. Industrial prices are available on request.
Technical Data
Sketch
Amplitude & Impedance Frequency
Directivity pattern
Rated power 8 W
Nominal impedance Z 4 Ohm
Frequency response 150–20000 Hz
Mean sound pressure level 86 dB (1 W/1 m)
Excursion limit +/−3.8 mm
Resonance frequency fs 220 Hz
Magnetic induction 1.26 T
Magnetic flux 148 µWb
Voice coil diameter 14.28 mm
Height of winding 2.65 mm
Cutout diameter 63/60 mm (Installation front/rear)
Net weight 61 g
D.C. resistance Rdc 3.7 Ohm
Mechanical Q factor Qms 4.9
Electrical Q factor Qes 2.23
Total Q factor Qts 1.53
Equivalent volume Vas 0.43 l
Effective piston area Sd 21.6 cm²
Dynamically moved mass Mms 0.8 g
Force factor Bxl 1.39 Tm
Inductance of the voice coil L 0.1
Connections 2.8 x 0.5 mm (+)/2.8 x 0.5 mm (-)
Protective system IP 65 *)
Temperature range -40 ... 85 °C

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