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Aurasound NS4-255-4F Wideband 4" Speaker
4 ohm
This is the last run out of the old factory. We are selling it as a special and await production of this driver from the new factory.
- High excursion
- Very low distortion
- No stray magnetic fields
- Wide bandwith
- Aluminum cone
- NRT neodymium radial magnet system
- Rubber surround
Fs 66Hz
Impedance 4 ohm
Sensitivity 84dB (1W/1m) about 87dB @ 2.83V
20W RMS power
Frequency range 60-10kHz
Qts 0.42
Vas 2.67 ltrs
See pdf for complete specs.
Sealed box of 95 cubic inches (1.5 ltrs) has an F3 of 115Hz
Vented box of 150 cubic inches (2.5 ltrs) with 1" diameter port by 4" long has an F3 of 68Hz
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