A 4420C • 8 Channel Public Address Mixer
This 8 channel mixer incorporates a variety of practical features ensuring suitability for a wide scope of PA and sound reinforcement applications. Features include: selectable phantom power for electret/condenser type microphones on each input, optional VOX muting of line programs, bass and treble controls (microphone channels can be routed through tone controls or bypassed as desired), individual level controls together with master level control. A 600Ω/0dBm XLR balanced line output is provided, enabling connection to a maximum of 16 power amplifiers.
Key Features:
- 6 microphone and 2 line inputs
- All mic inputs are 3 pin XLR balanced
- Line inputs via twin RCA sockets
- Separate bass and treble tone controls
- Individual input and master volume controls
- Optional VOX muting of line inputs
- Optional phantom power for each mic input
- Microphone bass cut internally selectable
- Mic inputs routed via tone controls or bypassed
- 24VDC input
Developed, designed & assembled in Australia.
Since 1974 Redback PA products have been manufactured in Perth, Western Australia by Altronics. With over 50 years experience in the commercial audio industry, we offer consultants, installers and end users reliable products of high build quality with local product support.
Backed by an industry leading 10 Year Manufacturer Warranty.
Our Redback products have a long tried and tested history of bulletproof reliability. Altronics offers a 10 Year Warranty on all Australian Made Redback products. Our local in-house service department has all the know how to answer technical queries and provide timely service.
No. of Channels: 2
Sensitivity (master full): 260mV
Signal to Noise Ratio: better than 76dB
Frequency Response (±3dB): 60Hz – 20kHz
Input Impedance: 100k Ohm
Muting Level: -50dB
Mode: Unbalanced
Connector Type: Stereo RCA
Tone Control
Bass Control: ±9dB at 80Hz
Treble Control: ±10dB at 10kHz
Bass Cut Switch on Microphone: Switch “ON” -6dB/Octave from 150Hz
Phantom Power
Voltage: 12V
Output Impedance: 3.4k ohm
Microphone
No. of Channels: 6
Sensitivity (master full): 1.2mV
Signal to Noise Ratio: better than 71dB
Frequency Response (±3dB): 60Hz to 20kHz
Input Impedance: 600 Ohm
Mic Impedance: 200 – 600 Ohm nominal
Mode: Balanced
Connector Type: 3 Pin XLR Female
Output
Signal to Noise Ratio :
(all controls mid way) -85dB, ref 0dBm
(all controls maximum) -58dB, ref 0dBm
Impedance: 600 Ohms
Distortion: Less than 0.06%
Max Output Level: +19dBm
Mode: Balanced
Connector Type: 3 Pin XLR Male