Scanspeak D2905/970000 Tweeter - Classic Range
Scanspeak D2905/970000 Tweeter - upgraded version of the excellent D2905/950000 with Symmetrical Drive.
High power handling of 225 W and frequency extension to above 30KHz. Hand coated textile dome and airflow optimised copper capped pole piece. The rear chamber features a resonance damping plug. The phase and distortion performance is still regarded as exceptional after 3 decades. A superb, sweet and highly detailed sounding tweeter. Found in many high end designs, this tweeter is a top choice for DIY / home-built high performance loudspeakers.
Symmetrical drive is a system incorporating copper caps / sleeve around the pole piece - this effectively forms a very low impedance shorted turn (called a Faraday ring) within the magnet circuit, the net result being that the tweeter voice coil impedance remains largely constant across it's operating frequency range, resulting in a more linear output with greater top end extension.
We stock a replacement dome for this tweeter here: D2905/970000 Dome
- Patented Symmetrical Drive (SD-2) motor
- Hand coated 1" Textile Dome Diaphragm
- Low Resonance Rear Chamber
- Black Aluminium Face Plate
- Low viscosity Ferro Fluid
|Resonant frequency (fs)||500 Hz||Nominal impedance (Zn)||6 Ω|
|Effective diaphragm diameter||28mm||DC resistance (Re)||4.7 Ω|
|Ferrofluid ? Y/N||Yes||RMS power handling||225 W|
|Recommended crossover||2.8kHz/12dB||Faceplate diameter||104.5 mm|
|Sensitivity (2.83V/1m)||89.5 dB||Cutout hole diameter||75 mm|
Here's the full datasheet: