The Scan-speak D2904/7100 tweeter is a 1" soft dome with wide surround, using the same chambering as the Ring Radiator. The carefully designed dome and surround result in a linear response and an exceptionally good off axis response. Note the smooth roll off on the low end, making this tweeter a good choice for simple slopes A specially designed venting system uses a needle to cut down on turbulence in the air cavity. Better dynamics are achieved by not using ferrofluid, voice coil cooling is performed by the venting system and conduction through copper rings. The new SD-2 neodymium magnet system improves transient response.
TECHNICAL DATA: Sensitivity 2.83V/1M 94.5dB Free air resonance Fs 520 Hz DC resistance 3.0 ohm V.C. inductance 0.01 mH Power 12dB@Hz 160W@2.5K Effective cone area 7 cm2 V.C. diameter 28 mm Lin. & max. excursion ±0.2 / ±1.6mm Force factor BL Product 2.8 Tm Moving mass incl. air 0.35 g Net weight 0.42 kg Outside diameter: 104mm Cut out: 70mm Depth: 30.9mm 25.4mm = 1" = 2.54cm