SB Acoustics SB26STAC-C000-4 / Fabric Dome Tweeter

The SB Acoustics SB26STAC-C000-4 is a 26 mm fabric dome tweeter built with affordability and performance in mind. It’s part of SB Acoustics’ standard line and is well-regarded for offering natural, smooth high frequencies with solid build quality, all at a price point that’s hard to beat.

Features

• Cast aluminium faceplate
• Copper cap for reduced voice coil inductance and minimum phase shift
• Non-reflective rear chamber with optimized damping for improved dynamics
• Flow optimized vented pole piece for optimum coupling to rear chamber
• Fine weave soft fabric dome for smooth frequency response
• Saturation controlled motor system for low distortion
• CCAW voice coil for low moving mass
• Long life silver lead wires
• Low resonance frequency

Specs

• Nominal Impedance 4 Ω
• DC resistance, Re 3.2 Ω
• Voice coil inductance, Le 0.04 mH
• Effective piston area, Sd 6.2 cm2
• Voice coil diameter 25.4 mm
• Voice coil height 1.3 mm
• Air gap height 2.5 mm
• Linear coil travel (p-p) 1.2 mm
• Moving mass incl. air, Mms 0.3 g
• Free air resonance, Fs 750 Hz
• Sensitivity (2.83 V / 1 m) 91.5 dB
• Mechanical Q-factor, Qms 3.0
• Electrical Q-factor, Qes 1.78
• Total Q-factor, Qts 1.12
• Force factor, Bl 1.6 Tm
• Rated power handling* 120 W
• Magnetic flux density 1.15 T
• Magnet weight 0.22 kg
• Net weight 0.53 kg

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