Mode d'emploi - Radio Matériel
Mode d'emploi - Radio Matériel
Mode d'emploi - Radio Matériel
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NM250A 2-way, bi-amplifed, active loudspeaker system<br />
Specifications<br />
Speaker system<br />
2-way bass reflex, low turblence ports<br />
• Components<br />
custom designed<br />
- bass frequencies 8" high efficiency woofer<br />
Nominal diameter 8"<br />
Nominal impedance<br />
8 ohms<br />
Power capacity<br />
200 Watts<br />
- high frequencies 1" compression driver loaded by a<br />
90° x 60° horn<br />
Throat diameter: 1"<br />
Nominal impedance:<br />
8 ohms<br />
Voice coil diameter:<br />
25 mm<br />
• Impedance<br />
8 ohms<br />
• Frequency response 58 Hz ÷ 20 kHz ± 3dB<br />
- bass 58Hz ÷ 3300Hz<br />
- mid/high 3300Hz ÷ 20kHz<br />
• Electronic crossover 3300 Hz, 24 dB/oct<br />
• Sensitivity<br />
98 dB SPL @ 1W/1m on axis<br />
• Max SPL<br />
121 dB<br />
Built-in power amplifier 2 MosFet, class AB, dedicated power units<br />
with 2 independent dynamic processors;<br />
self-diagnostic circuit<br />
• Max. output power 250 Watts<br />
- bass 200 W (8 ohms / 0.1% THD)<br />
- mid/high 50 W (8 ohms / 0.1% THD)<br />
• Frequency response 10Hz ÷ 40kHz ±1dB<br />
• Input impedance line: 22kOhms - micro: 2 kOhms<br />
• Input sensitivity<br />
line: -10dB - micro: -40dB<br />
• Noise referred to input -118dB (A weighted)<br />
• Power supply<br />
230 V.A.C. 50÷60Hz - Fuse: T 1AL<br />
Connections<br />
Construction<br />
Dimensions (w x h x d):<br />
Weight:<br />
on request: 117 V.A.C. 50÷60Hz, fuse T 2A<br />
combined XLR and jack socket<br />
(Neutrik Combo ® ) for the balanced input<br />
(mic/line switchable);<br />
balanced XLR output (link)<br />
Injection moulded polypropylene<br />
cabinet. Steel protection grille.<br />
Stand adaptor. Threaded inserts (8M)<br />
25 x 42,5 x 23 cm<br />
9 Kg<br />
Response curve<br />
Block diagram<br />
24<br />
APPENDIX