Eton ER-4 Air Motion tweeter

A tweeter with air-motion technology for the most demanding high-end applications. The diaphragm material provides for a neutral and detailed sound and its large diaphragm surface and low specific weight allow a high sound pressure without generating significant diaphragm amplitudes. Quick reaction and effortlessness are among the outstanding sound characteristics of this chassis.

Specifications

Nominal impedance Zn 4 Ω

DC resistance Re 3.8 Ω

Resonance frequency 1W fr 490 Hz

Resonance frequency TSP fr - Hz

Suspension compliance CMS - mm/N

Mechanical Q Qms -

Electrical Q Qes -

Total Q Qts -

Mechanical resistance RMS - kg/s

Total moving mass (incl. air mass) MMD 0.66 g

Effective piston area SD 67 cm2

Voice coil inductance Le - mH

Force factor BLxl - Tm

Xmax electrical +/- - mm

Xmax mechanical +/- - mm

Equivalent volume VAS - dm3

Characteristic SPL 1W/1m 88 dB SPL

Rated power 60* W