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TR 8MB-250    
 

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FREQUENCY RESPONSE CURVE
ELECTRICAL MECHANICAL PARAMETERS
Peak power (W) 250
Power Rms (W) 125
SPLo (SPL à 1W) (dB) 94
Surround Double M-Roll
Dust cap Paper
Voice coil material - diameter (in/mm) Co - 1 1/2" / 38
Revc (DC Vc Res) (ohm) 5.9
Fs (Resonance / Frequency) (HZ) 57
Zo (Zmax at Fo) (ohm) -
Sd (Piston area) (m2) 0.022
BL (Flux lenght) (TM) 13.26
no (Ref efficiency) (%) 1.9
Qms (Mech Q) 2.9
Qes (Elec Q) 0.36
Qts (Total Q) 0.31
Vas (Acoustic volume) (Litr) 35.15
X-max (mm) +/- 4 mm
Cms (Compliance) (uM - N) 511.49
Mms (Total mass) (g) 14.49
Mmd (Diapm mass) (g) 12.61
 
MOTOR IMPEDANCE PARAMETERS
Levc (Induction at 1kHz) (mH) -
Levc (Induction at 20kHz) (mH) -
Krm (Resistance cons) (ohm) 2.38
Kxm (Reaction cons) (mH) 17.44
Rem (Resistance at 1kHz) (ohm) -
Rem (Resistance at 20kHz) (ohm) -
Erm (Resistance expont) 0.85
Exm (Reaction expont) 0.71
 
MOUNTING INFORMATION
Overall diameter (in/cm) 8 1/4" / 26.35
Baffle hole diameter (in/cm) 7" / 23
Depth (in/cm) 4 5/32" / 12.06
Fixing holes (in/cm) 5 1/2" / 9.4
Flange thickness (in/cm) 5/32" / 1.19
Fixing hole diameter (in/cm) 7 3/4" / 24.68
Front / Rear sealing gaskets Standard
Weight (lbs/kg) 9.5 / 4.35
Recom. enclosure vol. (cu.ft) 0.57 / 1.14
Shipping weight (lbs/kg) 11.5 / 5.27
Packing carton dim. (H/V)

8 1/4" / 8 1/4" / 4 1/4"
 
Belisle Acoustics Inc. pursues an active Research & Development program and reserves the right to alter specifications without prior notice.
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