09/02
Technical Manual
ND310II
Northridge™Series
ACOUSTIC & ELECTRICAL SPECIFICATIONS:
•Nominal Impedance 8 ohms
•Max Amp Power 250 watts*
•Frequency Response 37Hz – 20kHz
•Sensitivity 91dB (1 watt @ 1 meter)
•Crossover Frequencies 1000Hz, 5000Hz
SYSTEM COMPONENTS:
•Enclosure ND310II (not for sale)
•Grille 337804-001
•Low-Frequency 10" (254mm) Polyplas™
,shielded
Transducer (2) 335573-002
DC Resistance 10.8 ohms ±10%
•Mid-Frequency Transducer 4" (102) Polyplas™
,shielded
335588-002
DC Resistance 4.4 ohms ±10%
•High-Frequency 3/4" (19mm) titanium-laminate
Transducer dome, shielded 338035-001
DC Resistance 3.0 ohms ±10%
•Crossover Network 335624-002
AURAL SWEEP TEST SPECIFICATIONS:
•System Aural Sweep Test 6.0V Input 30Hz to 20kHz
•L.F. Aural Sweep Test 6.0V Input 30Hz to 2kHz
•M.F. Aural Sweep Test 4.0V Input 500Hz to 6kHz
•H.F. Aural Sweep Test 2.83V Input 4kHz to 20kHz
PHYSICAL SPECIFICATIONS:
•Enclosure Dimensions 42" x 14-1/2" x 12"
(H x W x D) 1067mm x 368mm x 305mm
•Weight 55 lb/25kg (each)
WARRANTY:
• Refer to Warranty Statement packed with each product.
*The maximum recommended amplifier power rating will
ensure proper system headroom to allow for occasional
peaks. We do not recommend sustained operation at
these maximum power levels.
