ScanSpeak D2905, 970000 Tweeter - Classic Range

Scanspeak D2905/970000 features a specially hand-coated 1" textile diaphragm, and uses the Symmetrical Drive SD-2 motor, which gives frequency extension above 30KHz, high power handling and low resonances. Very low Fs. Aluminium faceplate.

This tweeter has a low resonance rear chamber.

Specification:

• Resonance frequency [fs] 500 Hz
• Mechanical Q factor [Qms] 3.45
• Electrical Q factor [Qes] 0.54
• Total Q factor [Qts] 0.47
• Force factor [Bl] 3.5 Tm
• Mechanical resistance [Rms] 0.41 kg/s
• Moving mass [Mms] 0.45 g
• Suspension compliance [Cms] 0.23 mm/N
• Effective diaph. diameter [D] 33 mm
• Effective piston area [Sd] 8.5 cm²
• Equivalent volume [Vas] 0.02 l
• Sensitivity (2.83V/1m) 89.5 dB
• Ratio Bl/√Re 1.61 N/√W
• Ratio fs/Qts 1068 Hz

Electrical Data:

• Nominal impedance [Zn] 6 Ω
• Minimum impedance [Zmin] 5.7 Ω
• Maximum impedance [Zo] 34.6 Ω
• DC resistance [Re] 4.7 Ω
• Voice coil inductance [Le] 0.01 mH
• Power Handling 100h RMS noise test (IEC 17.1)* 225 W

Voice Coil and Magnet Data

• Voice coil diameter 28 mm
• Voice coil height 3.3 mm
• Voice coil layers 2
• Height of gap 2.5 mm
• Linear excursion ± 0.4 mm
• Max mech. excursion ± 1.5 mm
• Unit weight 0.7 kg

PRICE (1 off)
£123.86 +vat +p&p