Mackie C300 Service Manual download pdf (Page 5)

5

Specifications

Low-Frequency Transducer

Diameter 300mm (12”)

Voice Coil Diameter 63.5mm (2.5”)

Sensitivity (

1W@1m) 98 dB

Nominal Impedance 8 ohms

Power Handling 300W

Frequency Range 50Hz – 3000Hz

High-Freq Driver and Horn

Diaphragm Diameter 44.5mm (1.75”)

Exit Throat Diameter 24.5mm (1”)

Diaphragm Material Titanium

Sensitivity (

1W@1m) 106 dB

Nominal Impedance 8 ohms

Power Handling 150W

Frequency Range 1000Hz – 20,000Hz

Low-Freq Power Amplifier

Rated Power 300 watts

Rated THD < 0.1%

Cooling: Convection Extrusion

Design: Class G, Parametric Servo

Feedback

High-Freq Power Amplifier

Rated Power 100 watts

Rated THD < 0.1%

Cooling: Convection Extrusion

Design: Conventional Class AB

System specs

Input Type Balanced Differential

Input Impedance Line: 20k ohms

Input Protection RFI and level protected

Sensitivity Line: +4 dBu (centered)

Mic: –36 dBu

Maximum Input Level Line: +22 dBu

Low-Cut Frequency 75Hz, Second-order filter

EQ Peaking +3 dB @ 55Hz,

+3 dB @ 20kHz

Over-Excursion Protection

Second-Order High-Pass

Filter

Thermal Protection Amplifier shutdown, auto-

reset

Low-Line Voltage Shut Down: 60% Nominal line

Acoustic Freq Response: 45Hz – 20,000Hz

Low-Freq –3 dB Point: 55Hz

Maximum SPL @ 1m: 123 dB

Low-Freq Crossover: 24 dB/octave, time offset

corrected

High-Freq Crossover: 24 dB/octave

Crossover Frequency: 1600Hz

Driver Protection Independent LF and HF

compressors

Low-Freq Roll-Off: Dynamic-signal level de-

pendent

Accessory Interface ±15V DC

Operating Temp Range –10ºC - 45ºC (14ºF - 113ºF)

Line Input Power

US 120V, 60Hz

Europe 230V, 50Hz

Japan 100V, 50/60Hz

Disclaimer

Since we are always striving to make our products

better by incorporating new and improved materi-

als, components, and manufacturing methods, we

reserve the right to change these specifications at

any time without notice.

©1999 Mackie Designs Inc.

All Rights Reserved.

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