4.0 SPECIFICATIONS
Model
Design
Drive Units
Frequency response at 15˚
horizontally off axis ±3 dB
LF corner -6 dB
Crossover frequency
Amplifier requirements
Sensitivity (2.83V/1m)
Maximum output
Impedance
Magnetic shielding
Weight
Dimensions
(H x W x D)
Finishes
Model
Design
Drive Units
Frequency response at 15˚
horizontally off axis ±3 dB
LF corner -6 dB
Crossover frequency
Amplifier requirements
Sensitivity (2.83V/1m)
Maximum output
Impedance
Magnetic shielding
Weight
Dimensions
(H x W x D)
Finishes
Features and specifications subject to change without notice.
Uni-Q
®
is a trade mark of KEF and is protected under UK Patent No. 2 236929. World-wide patents pending.
4 way reflex
LF: 1 x 165 mm (6
1
/
")
2
MF: 1 x 165 mm (6
1
/
")
2
HF: 1 x 25 mm (1")
SHF: 1 x 19 mm (
3
/
")
4
58 Hz - 55 kHz
46 Hz
400 Hz, 2.7 kHz, 15 kHz
50 - 150 W
88 dB
110 dB
8 Ω (3.2 Ω min)
Yes
14.8 Kg (32.6 lbs)
557 x 248 x 402 mm
21.9 x 9.8 x 15.5 inches
Black Ash, Maple or
Cherry real wood veneer
5 way reflex
LF: 2 x 250 mm (10")
LMF: 1 x 250 mm (10")
1
MF: 1 x 165 mm (6
/
")
2
HF: 1 x 25 mm (1")
SHF: 1 x 19 mm (
3
/
")
4
40 Hz - 55 kHz
28 Hz
120 Hz, 400 Hz, 2.7 kHz, 15 kHz 400 Hz, 2.7 kHz, 15 kHz
50 - 400 W
91 dB
117 dB
8 Ω (3.2 Ω min)
Yes
66 Kg (145 lbs)
1290 x 400 x 685 mm
50.7 x 15.7 x 27 inches
Black Ash, Maple or
Cherry real wood veneer
4 way reflex
LF: 2 x 165 mm (6
1
/
")
2
MF: 1 x 165 mm (6
1
/
")
2
HF: 1 x 25 mm (1")
SHF: 1 x 19 mm (
3
/
")
4
55 Hz - 55 kHz
40 Hz
400 Hz, 2.7 kHz, 15 kHz
50 - 200 W
89 dB
113 dB
8 Ω (3.2 Ω min)
Yes
26.5 Kg (58.3 lbs)
1068 x 248 x 405 mm
42 x 9.8 x 15.9 inches
Black Ash, Maple or
Cherry real wood veneer
4 way reflex
LF: 2 x 165 mm (6
1
/
")
2
MF: 1 x 165 mm (6
1
/
")
2
HF: 1 x 25 mm (1")
SHF: 1 x 19 mm (
3
/
")
4
65 Hz - 55 kHz
50 Hz
50 - 200 W
89 dB
113 dB
8 Ω (3.2 Ω min)
Yes
16 Kg (35.2 lbs)
240 x 630 x 315 mm
9.4 x 24.8 x 12.4 inches
Black Ash, Maple or
Cherry real wood veneer
73
4 way reflex
LF: 2 x 200 mm (8")
MF: 1 x 165 mm (6
1
/
")
2
HF: 1 x 25 mm (1")
SHF: 1 x 19 mm (
3
/
")
4
45 Hz - 55 kHz
35 Hz
400 Hz, 2.7 kHz, 15 kHz
50 - 300 W
90 dB
115 dB
8 Ω (3.2 Ω min)
Yes
33 Kg (72.6 lbs)
1155 x 285 x 433 mm
45.5 x 11.2 x 17 inches
Black Ash, Maple or
Cherry real wood veneer
4 way reflex
LF: 4 x 165 mm (6
1
/
")
2
MF: 1 x 165 mm (6
1
/
")
2
HF: 1 x 25 mm (1")
SHF: 1 x 19 mm (
3
/
")
4
53 Hz - 55 kHz
40 Hz
400 Hz, 2.7 kHz, 15 kHz
50 - 300 W
90 dB
115 dB
8 Ω (3.2 Ω min)
Yes
35 Kg (77 lbs)
240 x 1100 x 425 mm
9.4 x 43.3 x 16.7 inches
Black Ash, Maple or
Cherry real wood veneer