GF 250 2 X 4 OHM
Art. No. -
25 cm (10") High-End woofer with black glass fiber cone, solid aluminium die-cast basket and elastic rubber surround. Designed for multi-purpose applications due to 2 x 4 ohms double voice-coil, with excellent properties as 8 ohms drivers in series configuration. The long stroke voice-coil in conjunction with the extended rear pole plate, the vented damper, the vented magnet and the capton voice-coil carrier guarantees long strokes and highest power handling.
No longer available.
Technical Data
| Rated power | 150 Watt |
|---|---|
| Maximum power | 200 Watt |
| Nominal impedance Z | Eine Schwingspule offen: 4 Ohm / Beide Schwingspulen in Reihe: 8 Ohm / Beide Schwingspulen parallel: 2 Ohm |
| Frequency response | fu - 6000 Hz |
| (fu: Lower cut-off frequency depending on cabinet) | . |
|---|---|
| Mean sound pressure level | Eine Schwingspule offen: 87 dB (1 W/1 m) / Beide Schwingspulen in Reihe: 90 dB (1 W/1 m) / Beide Schwingspulen parallel: 90 dB (1 W/1 m) |
| Excursion limit | 20 mm |
| Resonance frequency fs | Eine Schwingspule offen: 26 Hz / Beide Schwingspulen in Reihe: 24 Hz / Beide Schwingspulen parallel: 26 Hz |
| Magnetic induction | 1,1 Tesla |
| Magnetic flux | Eine Schwingspule offen: 1400 µ Weber / Beide Schwingspulen in Reihe: 1430 µ Weber / Beide Schwingspulen parallel: 1430 µ Weber |
| Height of front pole-plate | 8 mm |
| Voice coil diameter | 50 mm |
| Height of winding | 20 mm |
| Cutout diameter | 235 mmm |
| Net weight | 4 kg |
| D.C. resistance Rdc | Eine Schwingspule offen: 3,1 Ohm / Beide Schwingspulen in Reihe: 6,2 Ohm / Beide Schwingspulen parallel: 1,6 Ohm |
| Mechanical Q factor Qms | Eine Schwingspule offen: 4,61 / Beide Schwingspulen in Reihe: 4,35 / Beide Schwingspulen parallel: 4,23 |
| Electrical Q factor Qes | Eine Schwingspule offen: 0,63 / Beide Schwingspulen in Reihe: 0,29 / Beide Schwingspulen parallel: 0,31 |
| Total Q factor Qts | Eine Schwingspule offen: 0,55 / Beide Schwingspulen in Reihe: 0,28 / Beide Schwingspulen parallel: 0,29 |
| Equivalent volume Vas | Eine Schwingspule offen: 110 l / Beide Schwingspulen in Reihe: 134 l / Beide Schwingspulen parallel: 110 l |
| Effective piston area Sd | 346 cm2 |
| Dynamically moved mass Mms | 54 g |
| Force factor Bxl | Eine Schwingspule offen: 6,5 T m / Beide Schwingspulen in Reihe: 13 T m / Beide Schwingspulen parallel: 6,5 T m |
| Inductance of the voice coil L | Eine Schwingspule offen: 0,77 mH / Beide Schwingspulen in Reihe: 1,54 mH / Beide Schwingspulen parallel: 0,77 mH |
Show all data
