ER18RNX is an 18 cm (6,5’’) cone driver, developed for use as a long throw high
fidelity woofer or woofer/midrange unit.

Edge coated reed/paper pulp cone together with perfectly matched moving parts
gives a smooth, extended frequency response.

Bumped back plate in the magnet system, together with the very long and light
weight copper clad aluminium voice coil, allow extreme coil excursion with low
distortion.

Heavy copper ring below the T-shaped pole piece will reduce non linear and modulation
distortion.

Extremely stiff and stable injection moulded metal basket keeps the critical components in perfect alignment.

Large windows in the basket both above and below the spider reduce sound reflection, air flow noise and cavity resonance to a minimum.

Technical data:

Long Term Power Handling RMS: 80W
Short Term Power Handling: 250W
Nominal Impedance Z: 8 Ohm
Voice Coil Resistance Re: 5,9 Ohm
Recommended Frequency Range: 45 – 3000 Hz
Characteristic Sensitivity SPL (2,83V/1 m): 88,5 dB
Free Air Resonance Fs: 37 Hz
Voice Coil Inductance Le: 0,67mH
Effective Piston Area Sd: 136cm2
Voice Coil Height Hvc: 18mm
voice Coil Diameter Dvc: 39mm
Xmax: +-6mm
Xmech: +-11mm
BL: 7,2
Mms: 14g
VAS: 32L
Qms: 1,58
Qes: 0,39
Qts: 0,33