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Eton

In Eton membranes, two Kevlar layers are connected by a honeycomb structure. This results in maximum stiffness with low diaphragm weight.

To our building proposals with Eton drivers.

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Eton ER4

order no. I-750615

EUR 432,00 excl. VAT: € 363.03 / $ 384.81

air motion transformer.

power handling (continuous/programme) = 60/120 W
frequency range = 2500-25 000 Hz
resonance frequency fs = 490 Hz
impedance R = 4 Ohm
sound pressure level SPL = 88 dB (2,83V; 1m)
DC resistance Re = 4 Ohm
effective piston radiating area Sd = 67 cm²
effective mechanical mass incl. air load mms = 0,66 g
mounting diameter d = 83 mm
overall diameter d = 110 mm
mounting depth (not countersunk) t = 9,75 mm

PDF data sheet

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The cabinet volume calculations are executed considering an external resistance of 0.3 Ohm. We are using, if no other data is known or available, the information supplied by the manufacturer.

Please note: the frequency response doesn't say much about the cut-off frequency inside the cabinet! Therefore, we mostly give you 2 examples with dimensioning considerations and an indication, how low the loudspeaker will reproduce.