BGS 40 - 8 Ohm
Art. No. 3040
40 cm (15") woofer with hard cone suspension for P.A. systems, stage monitors and musicians speakers. Solid aluminium die-cast basket for front- or rear baffle mounting. High efficiency and high power handling due to large magnetic drive with vent and 65 mm voice-coil.
Recommended cabinets
| Volume/Principle | BR-Channel | fb |
| 70 l/bass reflex | 4 x BR 15.34 (length 10 cm) | 54 Hz |
| 2 x BR 25.50 (length 7 cm) | ||
| 100 l/bass reflex | 4 x BR 15.34 (length 10 cm) | 46 Hz |
| 2 x BR 25.50 (length 7 cm) |
Technical Data
| Rated power | 200 W |
|---|---|
| Maximum power | 300 W |
| Nominal impedance Z | 8 Ohm |
| Frequency response | fu–4000 Hz |
| (fu: Lower cut-off frequency depending on cabinet) | . |
|---|---|
| Mean sound pressure level | 98 dB (1 W/1 m) |
| Excursion limit | +/−8 mm |
| Resonance frequency fs | 40 Hz |
| Magnetic induction | 1,1 T |
| Magnetic flux | 1800 µWb |
| Height of front pole-plate | 8 mm |
| Voice coil diameter | 65 mm |
| Height of winding | 12 mm |
| Cutout diameter | 359 mm |
| Net weight | 5,4 kg |
| D.C. resistance Rdc | 6,5 Ohm |
| Mechanical Q factor Qms | 3,13 |
| Electrical Q factor Qes | 0,49 |
| Total Q factor Qts | 0,42 |
| Equivalent volume Vas | 263 l |
| Effective piston area Sd | 855 cm² |
| Dynamically moved mass Mms | 80 g |
| Force factor Bxl | 16,8 Tm |
| Inductance of the voice coil L | 1,55 mH |
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