Do you have any questions?

W 300 S - 8 Ohm

30 cm (12") HiFi woofer with powerful drive, extended rear pole plate and long stroke surround. 50 mm voice-coil for high power handling. Very suitable for large 3-way and 4-way combinations and for high power handling subwoofers. Recommended cabinets: Volume/Principle BR-Channel fb 70 l/bass reflex 2 x BR 15.34 36 Hz 100 l/bass reflex 2 x BR 15.34 (length 12 cm) 32 Hz 1 x BR 25.50 (length 7 cm) 150 l/bass reflex 2 x BR 15.34 (length 7 cm) 29 Hz
Technical Data
Sketch
Recommended cabinets
Amplitude & Impedance Frequency
Rated power 150 W
Maximum power 200 W
Nominal impedance Z 8 Ohm
Frequency response fu–4200 Hz
(fu: Lower cut-off frequency depending on cabinet) .
Mean sound pressure level 92 dB (1 W/1 m)
Excursion limit +/−14 mm
Resonance frequency fs 23 Hz
Magnetic induction 1.1 T
Magnetic flux 1400 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 4.5 kg
D.C. resistance Rdc 6.7 Ohm
Mechanical Q factor Qms 1.65
Electrical Q factor Qes 0.42
Total Q factor Qts 0.33
Equivalent volume Vas 340 l
Effective piston area Sd 507 cm²
Dynamically moved mass Mms 57 g
Force factor Bxl 11.0 Tm
Inductance of the voice coil L 1.8 mH
Volume/Principle BR-Channel fb
70 l/bass reflex 2 x BR 15.34 36 Hz
100 l/bass reflex 2 x BR 15.34 (length 12 cm) 32 Hz
1 x BR 25.50(length 7 cm)
150 l/bass reflex 2 x BR 15.34 (length 7 cm) 29 Hz

Used in / Accessories:

UNI-SUB 30

The UNI-SUB 30 employes two W 300 S - 8 Ohm on the push-pull principle. These are screwed back-to-back to the baffle and one woofer is assigned to each stereo channel. The results are worth listening to. The frequency graph shows the high level of efficiency and the almost ideal bandpass characteristics of this subwoofer. This is connected directly in parallel to the stereo speakers whose bass needs boosting. For this reason it is important that the impedance curve of the subwoofer does not too fall to too low levels as otherwise the booster might be overloaded. Nevertheless, one should be careful with low-impedance speakers and amplifiers without protective circuitry (very rare today) not to set the volume too high.

The tonality of this universal subwoofer can be described as precise and very dynamic and is particularly well suited to reproducing high output levels.

The high efficiency of the UNI-SUB 30 supports medium sized speakers in the bass and low bass range and this gives the music its live feel.

Are you looking for a bespoke solution?

Contact us