Products description
T-S Parameters Notes: IEC specs. refer to IEC 60268-5 third edition. All Scan-Speak products are RoHS compliant. Data are subject to change without notice. Datasheet updated: January 30, 2013. Resonance frequency [fs] 28 Hz Mechanical Q factor [Qms] 2.30 Electrical Q factor [Qes] 0.30 Total Q factor [Qts] 0.27 Force factor [Bl] 8 Tm Mechanical resistance [Rms] 1.53 kg/s Moving mass [Mms] 20 g Compliance [Cms] 1.62 mm/N Effective diaph. diameter [D] 136 mm Effective piston area [Sd] 145 cm² Equivalent volume [Vas] 47.6 l Sensitivity (2.83V/1m) 88 dB Ratio Bl/√Re 3.41 N/√W Ratio fs/Qts 106 Hz Electrical Data Voice Coil & Magnet Data Nominal impedance [Zn] 8 Ω Minimum impedance [Zmin] 6.6 Ω Maximum impedance [Zo] 47.7 Ω DC resistance [Re] 5.5 Ω Voice coil inductance [Le] 0.4 mH Power Handling 100h RMS noise test (IEC 17.1) 100 W Long-term max power (IEC 17.3) 170 W Voice coil diameter 42 mm Voice coil height 19 mm Voice coil layers 2 Height of gap 6 mm Linear excursion ± 6.5 mm Max mech. excursion ± 10 mm Unit weight 2.3 kg Ein sehr hochwertiger Tiefton Klassiker mit besonderen Eigenschaften. Nicht zuletzt weil dieser Treiber mit sehr geringer bewegter Masse trotzdem sehr tiefreichend spielt.Das Ergebnis bei genügend großem Gehäuse äußerste Präzision weil sehr schnell aber trotzdem bis 30Hz herab reichend. Wir haben diesen Treiber vielfach erfolgreich eingesetzt um Träume im Bassbereich wahr werden zu lassen. net Parameters
Voice coil diameter 38 mm
Voice coil height -- mm
Voice coil layers --
Height of the gap -- mm
Linear excursion +/- 5 mm
Max mech. excursion +/- 10 mm
Flux density of gap -- mWb
Total useful flux -- mWb
Diameter of magnet -- mm
Height of magnet -- mm
Weight of magnet -- Kg
The Classic line consists of all the highly regarded transducers
that have been apraised and loved by so many customers over
the years. The goal has been to assemble all the diamonds,
developed over the years, speakers that fully live up to the
heritage of the brand.
Driver Highlights: Low loss rubber surround, carbon fibre/paper
cone, SD-1 motor
Classic
6½″ Midwoofer
 | 21 W 8554 - 00 | Kevlar cone, foam surround, SD motor | 8 ohm |
 | 21 W 4555 - 02 | 8 " hard paper cone, SD 1, 88.9dB | 4 ohm |
 | 21 W 8555 - 00 | Hard paper cone, low loss rubber surround, SD-1 motor | 8 ohm |
 | 21 W 8555 - 01 | Hard paper cone, low loss rubber surround, SD-1 motor | 8 ohm |
 | 25 W 8565 - 00 | Hard paper cone, low loss rubber surround, SD-1 motor | 8 ohm |
 | 25 W 8565 - 01 | Hard paper cone, low loss rubber surround, SD-1 motor | 8 ohm |
