Response Curve; Block Diagram - Montarbo NM250A Manuel D'instructions

NM250A
2-way, bi-amplifed, active loudspeaker system
Specifications
Speaker system 2-way bass reflex, low turblence ports
• Components custom designed
- bass frequencies 8" high efficiency woofer
Nominal diameter 8"
Nominal impedance 8 ohms
Power capacity 200 Watts
- high frequencies 1" compression driver loaded by a
90° x 60° horn
Throat diameter: 1"
Nominal impedance: 8 ohms
Voice coil diameter: 25 mm
• Impedance 8 ohms
• Frequency response 58 Hz ÷ 20 kHz ± 3dB
- bass 58Hz ÷ 3300Hz
- mid/high 3300Hz ÷ 20kHz
• Electronic crossover 3300 Hz, 24 dB/oct
• Sensitivity 98 dB SPL @ 1W/1m on axis
• Max SPL 121 dB

Response curve

24
APPENDIX
Built-in power amplifier 2 MosFet, class AB, dedicated power units
with 2 independent dynamic processors;
self-diagnostic circuit
• Max. output power 250 Watts
- bass 200 W (8 ohms / 0.1% THD)
- mid/high 50 W (8 ohms / 0.1% THD)
• Frequency response 10Hz ÷ 40kHz ±1dB
• Input impedance line: 22kOhms - micro: 2 kOhms
• Input sensitivity line: -10dB - micro: -40dB
• Noise referred to input -118dB (A weighted)
• Power supply 230 V.A.C. 50÷60Hz - Fuse: T 1AL
on request: 117 V.A.C. 50÷60Hz, fuse T 2A
Connections combined XLR and jack socket
(Neutrik Combo
(mic/line switchable);
balanced XLR output (link)
Construction
Injection moulded polypropylene
cabinet. Steel protection grille.
Stand adaptor. Threaded inserts (8M)
Dimensions (w x h x d): 25 x 42,5 x 23 cm
Weight: 9 Kg

Block diagram

® ) for the balanced input