Transcript
SB
12” SB34SWPL76-4
Prototype data
10.0
Ø 305.2
Ø 156.0
Ø346.2±0.55
Ø324.2±0.3
Ø5.5 (x8) Ø10.5 (x8)
45
° 146.5 166.7
Specs :
FEATURES
Nominal Impedance
4 3.5
Long stroke design
DC resistance, Re
Linear high stability suspension
Voice coil inductance, Le 4.7 mH
Low damping rubber surround 3’’ copper voice coil Non-conducting reinforced fibre glass coil former Very stiff hard paper cone (made in-house) Vented cast aluminium chassis Large vented motor system and vented coil former Long life silver lead wires
cm 2
Free air resonance, Fs
18 Hz
Sensitivity (2.83V/1m)
84 dB
Mechanical Q-factor, Qms
9.5
Electrical Q-factor, Qes
0.33 0.32
Effective piston area, Sd
458
Voice coil diameter
76 mm
Total Q-factor, Qts
Voice coil height
38 mm
Air gap height
8 mm
Moving mass incl. air, Mms 260 g Force factor, Bl 17.6 Tm
Linear coil travel (p-p)
30 mm
Equivalent volume, Vas
89.5 liters
Magnetic flux density
0.62 T
Compliance, Cms
0.30 mm/N
Magnet weight
2.4 kg
Mechanical loss, Rms
3.1 kg/s
Net weight
7.68 kg
Rated power handling*
300 W
* IEC 268-5, T/S parameters measured on drive units that are broken in.
100
160
95
147 133
90
120
85
107
80
93 80
65
Ohm
dB
75
67 60 53 55 40 50 27 45
13
40 10
20
50
100
200
500
1k
2k
5k
10k
0 20kHz
(IEC baffle, mic. distance 31.6 cm, SPL shown for 2.83V/1m) Response Curve : ------ (Blue) : on axis
REV. 0 (04.04.2016)
------ (Green) : 30° off-axis
------ ( Red ) : 60° off-axis
