AL 170 - 8 Ohm

Art. No. 1302

17 cm (6.5") High-End low midrange driver with stiff, anodized aluminium cone, solid aluminium die-cast basket and elastic rubber surround. Extremely low electrical and mechanical losses due to vented pole plate, vented damper and capton voice-coil. Extremely long cone displacement due to long stroke voice coil. Suitable as low-midrange driver for 2-, 3- and 4-way high-end applications up to 2500 Hz.

Recommended cabinets

Volume/Principle BR-Channel fb fc/QTC
10 l/closed - - 79 Hz/0,81
20 l/bass reflex BR 19.24 (length 13 cm) 43 Hz -
30 l/bass reflex BR 19.24 (length 11 cm) 39 Hz -

Technical Data

Rated power 70 W
Maximum power 100 W
Nominal impedance Z 8 Ohm
Frequency response fu–10000 Hz
(fu: Lower cut-off frequency depending on cabinet) .
Mean sound pressure level 88 dB (1 W/1 m)
Opening angle (-6 dB) 51°/4000 Hz
Excursion limit +/−11 mm
Resonance frequency fs 38 Hz
Magnetic induction 1,1 T
Magnetic flux 520 µWb
Height of front pole-plate 6 mm
Voice coil diameter 25 mm
Height of winding 18 mm
Cutout diameter 150 mm
Net weight 1,2 kg
D.C. resistance Rdc 5,6 Ohm
Mechanical Q factor Qms 3,88
Electrical Q factor Qes 0,43
Total Q factor Qts 0,39
Equivalent volume Vas 34 l
Effective piston area Sd 133 cm²
Dynamically moved mass Mms 13 g
Force factor Bxl 6,9 T m
Inductance of the voice coil L 0,9 mH
Show all data


frequency- and impedance response

directivity pattern

waterfall spectrum