K123A20

SPEAKER MODEL

K123A20

Specifications

Nominal diameter

300mm / 12"

Rated Impedance

4 or 8 ohms

AES Continuous Pink Noise Power

300 W

Sensitivity

97.0 dB SPL 1w / 1m

Frequency Range

45Hz - 3.5kHz

MAX Recomm. Frequency

1.2 kHz

Efective Piston Diameter

262mm  / 10.3 in

Voice Coil Winding Material

Copper-clad aluminum

Voice Coil

Winding Depth

20mm / 0.79in

Voice Coil Diameter

75mm / 3"

Magnetic Gap Depth

7mm / 0.28in

Magnetic Assembly

Weight

5.4 kg / 13.5 lbs

Flux Density

1.3 T

Bl Factor

19.3 T*m

Effective Moving Mass

0.059 kg

Thiele-Small Parameters

Free Air Resonanace (Fs)

46.0 Hz

D.C. Coil Resistance (Re)

3.4 (4) ohms / 6.0 (8) ohms

Total Quality Factor (Qts)

0.32

Mechanical Losses (Qms)

6.8

Electrical Losses (Qes)

0.34

Equivalent Volume of Air (Vas)

102.7 Liters

Effective Pistone Area (Sd)

538 sq.cm

Excursion (Xmax)

+/- 6.0 mm

Max. Power Rating (Pe)

150W RMS sine wave

Inductance of V.C. (Le)

Efficiency (No)

2.76%

Mounting Information

Overall Diameter

308mm / 12.13 in

Overall Depth

102mm / 4 in

Bolt Circle Diameter

291mm / 11.42 in

Baffle Cuotour Diameter

                 Front Mount

278mm / 10.95 in

                 Rear Mount

274mm / 10.9 in

Net Weight

7.8 kg / 19.5 lbs

Shipping Weight

8.8 kg / 22 lbs