12PLB76 Woofer

700 W continuous program power capacity

76 mm (3 in) aluminium voice coil

50 – 2000 Hz response

98.5 dB sensitivity

LF Drivers LF Nd Drivers Coaxials HF Drivers Horns

Specification

Nominal Diameter

320 (12) mm (in)

Nominal Impedance (1)

8 Ohm

Minimum Impedence

6.4 Ohm

Nominal Power Handling (2)

350 W

Continuous Power Handling (3)

700 W

Sensitivity (1W/1m) (4)

98.5 dB

Frequency Range

50 - 2000 Hz

Voice Coil Diameter

76 (3) mm (in)

Winding Material

Aluminium

Former Material

Glass Fibre

Winding Depth

16 (5/8) mm (in)

Magnetic Gap Depth

10.5 (0.4) mm (in)

Flux Density

1.05 T

Thiele & Small Parameters

Fs

50 Hz

Re

5.3 Ohm

Qes

0.24

Qms

5.2

Qts

0.23

Vas

75 (2.6) dm3 (ft3)

Sd

522 (80.9) cm2 (in2)

Eta Zero

3.8 %

Xmax

+/- 5 mm

Xvar

+/- 7 mm

Mms

51 g

Bl

18.6 Txm

Le

1.2 mH

 

Mounting and Shipping Info

 

 

Overall Diameter

316 mm (12.4 in)

Bolt Circle Diameter

296 mm (11.6 in)

Baffle Cutout Diameter

282 mm (11.1 in)

Depth

136 mm (5.35 in)

Flange and Gasket Thickness

16 mm (5/8 in)

Net Weight

7.4 kg (16.4 lb)

Shipping Weight

8.2 kg (18 lb)

Shipping Box

340x340x170 mm

 

(13.4x13.4x6.7 in)

1For different impedances, please ask.

22 hours test made with continuous pink noise signal (6 dB crest factor). Power calculated on rated minimum impedance.

3Power on Continuous Program is defined as 3 dB greater than the Nominal rating.

4Applied RMS Voltage is set to 2.83V for 8 ohms or 2.0V for 4 ohms Nominal Impedance

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B&C Speakers manual 12PLB76 Woofer, Specification, Thiele & Small Parameters, Mounting and Shipping Info

12PLB76 specifications

B&C Speakers, a renowned manufacturer in the audio industry, has gained a reputation for producing high-quality loudspeakers that cater to various applications. One of their exceptional offerings is the 12PLB76, a powerful 12-inch low-frequency transducer designed for professional audio applications, including concerts, mobile sound systems, and professional stage monitoring.

The 12PLB76 stands out with its impressive power handling capabilities, boasting a nominal power rating of 600 watts and a peak power rating of 2400 watts. This makes it ideal for high-demand environments where consistent and robust sound reproduction is essential. The loudspeaker's sensitivity rating of 97 dB ensures efficient sound output, allowing it to produce loud volumes with minimal amplifier power, making it a suitable choice for live scenarios where amplification needs can vary.

One of the key features of the 12PLB76 is its exceptional frequency response, which spans from 40 Hz to 4 kHz. This range allows for deep bass reproduction and clear midrange frequencies, giving it versatility for various applications, from music playback to vocal reinforcement. This wide frequency response is supported by a well-designed cone structure that features a specially formulated paper blend that enhances rigidity and reduces distortion.

In terms of technology, the 12PLB76 is equipped with a robust ferrite magnet system that provides high magnetic flux for optimal coil movement. This allows for increased efficiency and reliability, ensuring that the speaker can perform under the demanding conditions often encountered in live sound scenarios. The voice coil, made from high-temperature copper wire, enhances thermal dissipation, reducing the risk of overheating during prolonged use, which is critical during high-output situations.

The design of the speaker also emphasizes durability. The rugged suspension system and a heavy-duty steel frame give it the resilience needed for touring and repeated transport. Additionally, the design includes weather-resistant materials, making it suitable for outdoor use as well.

In conclusion, the B&C Speakers 12PLB76 is a robust and versatile 12-inch transducer that excels in various professional audio applications. With its exceptional power handling, broad frequency response, and durable construction, it is a reliable choice for sound engineers and audio professionals seeking superior performance in both live and recorded sound environments.