7
Resonant frequency, fs
42 Hz
Overall diameter
312 mm (12,28 in)
D.C. Voice coil resistance, Re
5,8
Ω
Bolt circle diameter
294,5 mm (11,59 in)
Mechanical Quality Factor, Qms
5,6
Baffle cutout diameter:
Electrical Quality Factor, Qes
0,30
- Front mount
278 mm (10,94 in)
Total Quality Factor, Qts
0,28
Depth
131 mm (5,16 in)
Equivalent Air Volume to Cms, Vas
91,1 l
Net weight
5,5 kg (12,12 lb)
Mechanical Compliance, Cms
229
μm / N
Mechanical Resistance, Rms
2,9 kg / s
Efficiency, η0
2,2 %
Effective Surface Area, Sd
0,053 m2
Maximum Displacement, Xmax **
6,3 mm
Displacement Volume, Vd
334 cm3
Voice Coil Inductance, Le @ 1 kHz
1 mH
THIELE-SMALL PARAMETERS*
MOUNTING INFORMATION
* T-S parameters are measured after an exercise period
using a preconditioning power test. The measurements
are carried out with a velocity-current laser transducer
and will reflect the long term parameters (once the
loudspeaker has been working for a short period of
time).
** The Xmax is calculated as (Lvc - Hag)/2 + (Hag/3,5),
where Lvc is the voice coil length and Hag is the air gap
height.
FREE AIR IMPEDANCE CURVE
FREQUENCY RESPONSE
AND DISTORTION
Note: On axis frequency response measured with loudspeaker standing on infinite baffle in anechoic chamber, 1W @ 1m
