Article numberPTT6.5X08-NAA-08
Woofer TypeExtended Woofer
Nominal Diameter6.5”
Power Handling (RMS)250 W
Impedance (Z)4 Ohms
Sensitivity2.83Vrms/1m 85.0 dB
DC Resistance (Re)5.9 Ω
Voice Coil Inductance (Le)0.50 mH
Resonant Frequency (Fs)34 Hz
Mechanical Q (Qms)7.7
Electromagnetic Q (Qes)0.42
Total Q (Qts)0.40
Diaphragm Mass Inc. Airload (Mms)27.2 g
Mechanical Compliance of Suspension (Cms)0.82 mm/N
Surface Area of Cone (Sd)132.7 cm2
BL Product (BL)9.0 N/A
Compliance Equivalent Volume (Vas)20.4 L
Maximum Linear Excursion (Xmax)+/- 9.8 mm
Driver's Mechanical Losses (Rms)0.75 kg/s
Cone / Diaphragm MaterialBlack Anodized Aluminum