Satori TW29BN-B-8 / Beryllium


  • Beryllium dome for non-resonant high frequency extension
  • Two part aluminium faceplate with integrated mechanical decoupling
  • Dual balanced compression chambers for improved dynamics
  • Dual copper caps for absolute minimum voice coil inductance and minimum phase shift
  • High saturation neodymium motor system with T-shaped pole piece
    for lower distortion
  • Non-reflective cast aluminium chamber with optimized damping for improved dynamics
  • Shallow flow optimized magnet structure for optimum coupling to
    rear chamber
  • CCAW voice coil for low moving mass
  • Long life silver lead wires
  • Low resonance frequency for extended range
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Additional information

Nominal Impedance

8 Ω

DC resistance

Re 6.2 Ω

Voice coil inductance

Le 0.04 mH

Effective piston area

Sd 9.6 cm2

Voice coil diameter

29.0 mm

Voice coil height

2.1 mm

Air gap height

2.5 mm

Linear coil travel (p-p)

0.4 mm

Moving mass incl. air

Mms 0.44 g

Free air resonance

Fs 750 Hz


(2.83 V / 1 m) 93.5 dB

Mechanical Q-factor

Qms 1.75

Electrical Q-factor

Qes 0.80

Total Q-factor

Qts 0.55

Force factor

Bl 4.1 Tm

Rated power handling

80 W

Magnetic flux density

1.5 T

Magnet weight

0.1 kg

Net Weight

0.4 kg


* IEC 268-5, high-pass Butterworth, 2600 Hz, 12 dB/oct.