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 | |
• | 10" (254mm) Polyplas, shielded |
| ™ |
Transducer (2) | |
DC Resistance | 10.8 ohms ±10% |
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DC Resistance | 4.4 ohms ±10% |
• | 3/4" (19mm) |
Transducer | dome, shielded |
DC Resistance | 3.0 ohms ±10% |
• Crossover Network | |
PACKAGING
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| Upper/Lower |
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| Foam |
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| Owner’s Manual |
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| Warranty Card |
| OWNER’S | |
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| MANUAL | Survey Card |
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™ Series |
| Plastic Bag (2 pcs.) |
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ND310NorthridgeII |
| Outer Carton |
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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 |
(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.
WIRING DIAGRAM |
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| Network |
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| Driver Mid | YELLOW/BLACK | + |
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| Frequency |
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Driver Low |
| WHITE |
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Frequency |
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— | + | — |
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| GREEN |
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| GREEN | GREEN/BLACK |
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GREEN/BLACK |
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| ND310II | SCHEMATIC |
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| L1 |
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RED | 2.8mH |
| GREEN 21" |
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| 250 | + | |||
+IN |
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| GREEN 16" | 250 | + | |
INPUT |
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| L.F. |
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| GREEN/BLACK 21" | 205 | – | |||
BLACK |
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R1 | L2 |
| GREEN/BLACK 16" 205 | – | |||
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| C1 |
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| 7.5/10W | 640∝H |
| 15∝F, 100v |
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| WHITE/BLACK 34" 110 | – | ||
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| M.F. |
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| WHITE 34" | 250 | + |
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| C2 |
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| 4∝F, 100v |
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| L3 | YELLOW 36" 205 | + | |
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| H.F. | |
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| 300∝H |
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| YELLOW/BLACK 36" | 110 | – | |
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JBL Consumer Products, 250 Crossways Park Dr., Woodbury, New York 11797 | 09/02 |
