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APPLICATION:
• Ideal for high quality subwoofers, two way in multiway systems, where sizable amounts of low frequency acoustic power is desired, combined with uncompromised mid frequencies output.
123NPM
SPECS PDF
DRAWING PDF
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NEODYMIUM WOOFER
Ordering code: 123NPM-185
CONT. POWER
SENS.
Fs
Freq. Range
VC Dia.
IN-OUT WOUND
VC Wire
Cone /
Surround
Magnet
Type
1,600 WATTS
97 dB
39 Hz
35-
3,000 Hz
4"
OUTSIDE
AL-R
PAPER w. CF
FABRIC
NEO
The 123NPM is a truely unique full range woofer. We have designed cutting edge product, using the best avail-able materials and highly optimized design for the best performance in its class. It delivers very high efficiency, (97 dB 1watt / 1 meter), incredibly linear frequency response characteristics with extended HF frequency response, extreme high power handling capability, while generating ultra low harmonic distortion artifacts. The 123NPM uses a lightweight carbon fiber loaded cone assembly along with a high excursion triple roll constant geometry surround. This combination provides remarkable strength, high efficiency and a peak to peak linear excursion of 22mm (0.9in).
Magnetic Circuit
The magnetic circuit features two aluminum shorting rings, double air-gap front plate. The cooling system and the air flow has been designed using the modern FEM techniques and further optimized to provide the highest levels of cooling efficiency. The magnetic circuit design is optimized to generate the minimum amount of flux modulation, providing exceptional stability.
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GENERAL SPECIFICATIONS:
Nominal Diameter
320 mm (12 in.)
Rated Impedance
8 ohm
Power Handling
AES Power
800 watts
PROGRAM Power
1,600 watts
PEAK Power
3,200 watts
Power Compression
@ -10dB
0.55 dB
@ 0dB
1.3 dB
@ Max. Power
1.9 dB
Max. Recommended X-OVER Freq.
2,800 Hz
Recommended Enclosure Volume
15 - 90 Liters
Cone Design / Cone Material
Exp. Gmtry, REDCATT Pulp
Voice Coil Diameter / Winding
4" / AL-R
Voice coil Winding Height
23.5 mm
Front Plate Thickness
12 mm
T/S Parameters:
Fs
39 Hz
Re
6.2 Ohm
Sd
551 cm2 (85.4 in.2)
Qms
6.47
Qes
0.43
Qts
0.4
Vas
70 Liters
Mms
94 g
Bl product (Force Factor)
19 Tm
Peak To Peak Displacement
22 mm
Le (mH @ 1kHz)
0.6
Mechanical Parameters:
Overall Diameter
302 mm (11.9 in.)
No. Of Mounting Holes
8
Bolt Circle Diameter
302 mm (11.9 in.)
Front Mount Baffle cutout
284mm (11.18 in.)nominal
Rear Mount Baffle cutout
295 mm ( 11.6 in.)nominal
Total Depth
140.5 mm (5.53 in.)
Flange and gasket thickness
11.3 mm (0.44 in.)
Packaging info:
Net Weight
6.3 kg (13.9 lbs.)
Shipping Weight
7.6 kg (16.8 lbs.)
Packaging Dimensions
34x34x17cm (13.5x13.5x7 in.)
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