Black 2-way 8" 80W 70/100V wall speaker With a modern design and high quality sound,  the NWB series includes a range of models available in  black or white.  The speakers feature  8" woofers plus 1" dome tweeters.  Power outputs range from 10W to 80W.  Transformers are available for both 70V  and 100V  applications . The NWB series is IP55 rated and EN 54-24 certified Characteristics - Two-way speaker for alarm and transmission systems - 70V / 100V / 8 ohm. - Woofer size: 8", Tweeter 1" - Frequency range 55Hz-20kHz - RMS power 80 watts - Maximum power 160 watts - Impedance: 8 ohms - Minimum impedance on 70V line: 62 Ohm - Maximum impedance on 70V line: 500 Ohm - Minimum impedance on 100V line: 125 Ohm - Maximum impedance on 100V line: 1K Ohm - Protection: IP55 - Black colour - Weight 6.2 kg