Mid Range Driver
  • For use with custom designed waveguide
  • Sealed chassis offers this unit independence from main enclosure
  • Deep cone profile
Klippel Verifeid
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Download PDF Datasheet
Frequency Response GRaPH
Impedance GRAPH
General Specifications
Nominal Diameter6.5" / 165 mm
Voice Coil Diameter1.5" / 38 mm
Available Impedances4 Ω/ 8 Ω/ 16 Ω
Power Rating 1 2 *140 W (A.E.S.)
Peak Power (6dB Crest Factor)*560 W (A.E.S.)
Sensitivity (1W – 1m)*105 dB
Frequency Range600 Hz - 10 kHz
Recommended Enclosure VolumeN/A
Resonance580 Hz
Voice Coil Winding Depth0.32" / 8.20 mm
Magnet Gap Depth6.00 mm / 0.24"
Flux Density1.85 Tesla
Magnet MaterialCeramic
Magnet Weight
Voice Coil MaterialCopper
Former MaterialGlass Fibre
Dust Dome MaterialFelt
Suspension MaterialPoly Cotton
Cone MaterialPaper
Surround MaterialFabric
Thiele Small Parameters
Fs580 Hz
Re13.5 Ω
Le (@1 kHz)
Le (@10 kHz)2.175 mH
Sd132.73 cm2
BL18.20 T/m
Xmax2.5 mm
Vd0.038 Litres
Ref. Efficiency6.20%
Dimensions & Mounting
Overall Diameter6.5" / 165 mm
Widths Across Flats163 mm
Flange Height8.50 mm
Depth (Excl. Flange)74.00 mm
Magnet Diameter154 mm
Chassis Shoulder Diameter162.00 mm
Outer Bolt Circlex6 M5 180 mm PCD
Inner Bolt CircleN/A


Shipping Information
Nett Weight4.90 Kg / 10.80 lb
Shipping Weight5.30 Kg / 11.68 lb


* 2.83V. Half space response measured in a 975 litre sealed enclosure.

*1 Power compression is the reduction of sensitivity at the specified power. Higher power ratings do not necessarily give a proportionate increase in SPL therefore the maximum SPL of the driver may significantly exceed that of other manufacturers with high power ratings.

** Distortion is measured at 10% of the rated power (AES Standard).

1. AES Standard (600 to 6000 Hz) Program 140 Watts.

2. AES Recommended Practice.

3. Thiele - Small Parameters follow a 140 Watt preconditioning period.

Please note that frequency response measurements are supplied for comparison purposes only and are not a measure of the low frequency performance which may be achievable in a fully optimised system.
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