10″ SB29NRX75-8 / Norex


  • Hard paper cone for improved piston operation (made in-house)
  • Vented pole piece for minimum compression
  • Vented cast aluminum chassis for optimum strength and low compression
  • 3″ copper voice coil for improved power handling
  • Long life silver lead wires
  • Low damping rubber surround for improved dynamic linearity
  • Non-conducting fiber glass voice coil former for minimum damping
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Additional information

Nominal Impedance

8 Ω

DC resistance

Re 6.2 Ω

Voice coil inductance

Le 1.34 mH

Effective piston area

Sd 312 cm2

Voice coil diameter

75.6 mm

Voice coil height

28 mm

Air gap height

6 mm

Linear coil travel (p-p)

22 mm

Magnetic flux density

0.9 T

Magnet weight

2.1 kg

Net Weight

5.40 kg

Free air resonance

Fs 26 Hz


(2.83V/1m) 88 dB

Mechanical Q-factor

Qms 7.06

Electrical Q-factor

Qes 0.39

Total Q-factor

Qts 0.37

Moving mass incl. air

Mms 58.9 g

Force factor

Bl 12.4 Tm

Equivalent volume

Vas 85.6 liters


Cms 0.63 mm/N

Mechanical loss

Rms 1.4 kg/s

Rated power handling

200 W


* IEC 268-5, T/S parameters measured on drive units that are broken in.



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