Art. No. 9069
30 cm (12") woofer with air-dried cone and pressure vented pole piece. Can be fitted at front or rear. Excellent value for money coupled with very good power-handling capabilities. Particularly suitable as a replacement for HiFi speakers.
Recommended cabinets:
| Volume/Principle |
BR-Channel |
fb |
fc/QTC |
| 70 l/closed |
- |
- |
56 Hz/0,8 |
| 100 l/closed |
- |
- |
49 Hz/0,71 |
| 150 l/closed |
- |
- |
43 Hz/0,62 |
| 70 l/bass reflex |
BR 25.50 (length 7 cm) |
36 Hz |
- |
| 100 l/bass reflex |
BR 25.50 (length 20 cm) |
32 Hz |
- |
| 150 l/bass reflex |
2 x BR 15.34 (length 7 cm) |
29 Hz |
- |
|
|
sketch
frequency- and impedance response
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| Technical Data: |
| Rated power |
120 W |
| Maximum power |
180 W |
| Nominal impedance Z |
8 Ohm |
| Frequency response |
fu–2500 Hz |
| (fu: Lower cut-off frequency depending on cabinet) |
. |
| Mean sound pressure level |
91 dB (1 W/1 m) |
| Maximum cone displacement |
+/−14 mm |
| Resonance frequency fs |
32 Hz |
| Magnetic induction |
0,95 T |
| Magnetic flux |
1250 µWb |
| Height of front pole-plate |
8 mm |
| Voice coil diameter |
50 mm |
| Height of winding |
18,5 mm |
| Cutout diameter |
280 mm |
| Net weight |
2,8 kg |
| D.C. resistance Rdc |
6,9 Ohm |
| Mechanical Q factor Qms |
2,85 |
| Electrical Q factor Qes |
0,68 |
| Total Q factor Qts |
0,55 |
| Equivalent volume Vas |
190 l |
| Effective piston area Sd |
490 cm² |
| Dynamically moved mass Mms |
43 g |
| Force factor Bxl |
9,44 Tm |
| Inductance of the voice coil L |
1,77 mH |
| TIW 300 8 OHM |
W 300 S 4 OHM |
| W 300 S 8 OHM |
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