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.

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
Frequency- and impedance response
Directivity pattern
Waterfall spectrum