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APPLICATION:

• Ideal for two-way and multi-way (line arrays) enclosure designs where sizable amount of mid frequencies is required

121NPM

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NEODYMIUM MID-WOOFER

Ordering code: 121NPM-079

CONT. POWER

SENS.

Fs

Freq. Range

VC Dia.

 IN-OUT WOUND

VC Wire

Cone /

Surround

Magnet

Type

650 WATTS

101 dB

46 Hz

50-

4,000 Hz

3"

IN-OUT

CCAW

PAPER w. CF

FABRIC

NEO

      The 121NPM is a ultra high efficiency, (101dB 1watt / 1 meter) 12-inch mid bass woofer with incredibly linear frequency response characteristics, extreme high power handling capability while generating low harmonic distortion artifacts.-

The 121NPM uses a lightweight carbon fiber loaded cone assembly along with a precision double roll constant geometry surround. This combination provides remarkable strength, high efficiency and a excursion linearity of 7.5mm.

 

Magnetic Circuit

REDCATT engineers have developed a lightweight, neodymium outside ring based magnetic circuit capable of delivering the highest level of performance providing a consistent, high integrity magnetic flux gap, ultra low distortion characteristic and high efficiency cooling system. The magnetic circuit design is optimized to generate the minimum amount of flux modulation, providing exceptional stability.

 

 

 

 

 

 

GENERAL SPECIFICATIONS:

Nominal Diameter

3200 mm (12 in.)

Rated Impedance

8 ohm

Power Handling

 

AES Power

450 watts

PROGRAM Power

650 watts

PEAK Power

1,300 watts

Power Compression

 

@ -10dB

0.7 dB

@ 0dB

1.5 dB

@ Max. Power

2.2  dB

Max. Recommended X-OVER Freq.

2,000 Hz

Recommended Enclosure Volume

8 - 40 Liters

Cone Design / Cone Material

Exp. Gmtry, REDCATT Pulp

Voice Coil Diameter / Winding

3"

Voice coil Winding Height

13 mm

Front Plate Thickness

10 mm

T/S Parameters:

 

Fs

46 Hz

Re

6.74 Ohm

Sd

531 cm2 (82.3 in.2)

Qms

8.3

Qes

0.199

Qts

0.195

Vas

82 Liters

Mms

56 g

Bl product (Force Factor)

24 Tm

Peak To Peak Displacement

6.5 mm

Le (mH @ 1kHz)

0.59

Mechanical Parameters:

 

Overall Diameter

315 mm (12.4 in.)

No. Of Mounting Holes

8

Bolt Circle Diameter

298 mm (11.7 in.)

Front Mount Baffle cutout

283 mm (11.1 in.) Nominal

Rear Mount Baffle cutout

282 mm (11.05 in.) Nominal

Total Depth

135.8 mm 5.35 in.)

Flange and gasket thickness

14 mm (0.55 in.)

Packaging info:

 

Net Weight

3.7 kg (8.2 lbs.)

Shipping Weight

4.5 kg (9.9 lbs.)

Packaging Dimensions

34x34x17cm (13.5x13.5x7 in.)

 

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