ScanSpeak D2905, 930000 Tweeter - Classic Range

ScanSpeak D2905, 930000 Tweeter - Classic Range

Scanspeak D2905/930000 Tweeter, a Classic Range Tweeter. A very popular design for a long time, the D2905/930000 features a specially hand-coated 1" textile diaphragm resulting in a smooth, detailed and very transparent sound and low levels of distortion and resonances. Aluminium faceplate.

This tweeter has a low resonance rear chamber, and a light ferrofluid is used.

Specification:

  • Resonance frequency [fs] 650 Hz
  • Mechanical Q factor [Qms] 0.94
  • Electrical Q factor [Qes] 0.72
  • Total Q factor [Qts] 0.41
  • Force factor [Bl] 3.5 Tm
  • Mechanical resistance [Rms] 1.96 kg/s
  • Moving mass [Mms] 0.45 g
  • Suspension compliance [Cms] 0.13 mm/N
  • Effective diaph. diameter [D] 33 mm
  • Effective piston area [Sd] 8.5 cm²
  • Equivalent volume [Vas] 0.01 l
  • Sensitivity (2.83V/1m) 90 dB
  • Ratio Bl/√Re 1.61 N/√W
  • Ratio fs/Qts 1598 Hz

Electrical Data:

  • Nominal impedance [Zn] 6 Ω
  • Minimum impedance [Zmin] 5.4 Ω
  • Maximum impedance [Zo] 10.9 Ω
  • DC resistance [Re] 4.7 Ω
  • Voice coil inductance [Le] 0.07 mH
  • Power Handling 100h RMS noise test (IEC 17.1)* 150 W

Voice Coil and Magnet Data

  • Voice coil diameter 28 mm
  • Voice coil height 3.3222 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)
£86.25 +vat+p&p

 

PDF datasheet

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