12″ SB34SWPL76-4 / Paper

Features

  • Long stroke design
  • Linear high stability suspension
  • Low damping rubber surround
  • 3’’ copper voice coil
  • Non-conducting reinforced fibre glass coil former
  • Very stiff hard paper cone (made in-house)
  • Vented cast aluminium chassis
  • Large vented motor system and vented coil former
  • Long life silver lead wires
Category:

Additional information

Nominal Impedance

4 Ω

DC resistance

Re 3.5 Ω

Voice coil inductance

Le 5.3 mH

Effective piston area

Sd 458 cm2

Voice coil diameter

76 mm

Voice coil height

38 mm

Air gap height

8 mm

Linear coil travel (p-p)

30 mm

Magnetic flux density

0.62 T

Magnet weight

2.4 kg

Net Weight

7.68 kg

Free air resonance

Fs 19 Hz

Sensitivity

85 dB

Mechanical Q-factor

Qms 8.6

Electrical Q-factor

Qes 0.34

Total Q-factor

Qts 0.33

Moving mass incl. air

Mms 266 g

Force factor

Bl 18.0 Tm

Equivalent volume

Vas 78.5 liters

Compliance

Cms 0.26 mm/N

Mechanical loss

Rms 3.7 kg/s

Rated power handling

300 W

Note

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

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