Jan 2002 Preliminary specs
Feb 2002 Preliminary curve added
Dec 2002 Approved curve added T5311 Iss 3
TRUVOX 1225
Specifications
Nominal diameter (‘’) 12
Power rating (W) 250
X Max (mm) 2.35
f/pl (mm) 8
coil (mm) 12.7
Nominal impedance (O) 8
Sensitivity (dB) 97
Voice coil diameter (‘’) 2½
Surround Material Cloth - Sealed
Magnet type Ceramic
Magnet assembly flux (T) 1.2
Magnet weight (oz) 42
Chassis type Pressed Steel
Cone material Kevlar loaded paper
Electroacoustic Specification Prototype
Frequency Range (Hz) 50-4000 Re (O) 5.13
Mmt (g) 46.5 D (m) 0.26
Qts 0.5 Vas (L) 55
Qms 6.7 Bl (Tm) 13.2
Qes 0.54 Cms (mm/N) 0.14
Fs (Hz) 63 Rms (kg/s) 2.76
Mechanical Specification
Diameter (mm) 309 Number of mounting holes 4
Overall depth (mm) 130 Mounting hole PCD (mm) 297
Cut-out diameter (mm) 283 Unit weight (kg) 4.1
Mounting hole diameter (mm) 7.9
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