Sensitivity (2.83 V/1 m):

 87 dB

Recommended Amp. Power:

 Medium size rooms: >50 watts
Large size rooms: >100 watts

IEC Long Term Power Handling:

 300 watts

Impedance, Nominal:

 4 ohms

Impedance, (20-200 Hz):

 3.9 - 20 ohms

Impedance, (200-20 kHz):

 4.1 - 8.0 ohms

Impedance, Phase Shift (20-200 Hz):

 -61° - +20°

Impedance, Phase Shift (200-20 kHz):

 -8.8° - +23°

Impedance, HF (200 kHz):

 6.5 ohms

Frequency Response (+/- 3 dB):

 26 Hz - 21 kHz

Resonance Frequency:

 24 Hz

Internal Cabinet Volume:

 51 litres

Bass Principle:

 Bass reflex

Weight:

 55 lbs (27.1 kg)

Dimensions (W x H x L):

 8.8" x 41.6" x 14.3" (222 x 1057 x 363 mm)

Crossover:

 3 way, impedance corrected
Crossover Frequencies: 430 and 2000 Hz

Crossover Slope:

 Woofer 6 dB/oct;
Midrange 6 & 12 dB/oct;
Tweeter 12 dB/oct

Connection:

 Gold binding posts

Recommended Placing:

 Floor

Remarks:

 Tweeter:
28 mm soft dome.
Magnetic fluid.
Pure aluminium wire voice coil.
Rear chamber.

Midrange:
15 cm with die cast basket
38 mm pure aluminium wire voice coil.
Cone and dustcap moulded as one piece

Woofers:
2 x 20 cm polypropylene cone
75 mm pure aluminium wire voice coil.

Cabinet:
Front baffle 28 mm MDF.
Port plugs and spikes included.
Bitumen damped enclosure.