MD4420

FAVO MD4420 Digital Amplifier

The MD4420 model is designed for use at festivals, concert tours, clubs, and all live/touring events. It provides a unique combination of immense power for extended periods, advanced DSP processing, and represents a significant advancement in audio technology.

It shares the same features and size as the eight-channel model MD4820, but each of its four channels can deliver 5000 watts (up to 10000 watts per pair in bridge mode). We are not talking about transient, peak, or burst power, but pure RMS power delivered by all channels simultaneously, under parallel load, even with the densest audio material. With our amplifiers, you do not need to worry about power distribution to channels or "Power sharing." This has been confirmed multiple times in dozens of installations and live situations around the world, as well as in independent tests (e.g., www.Production-Partner.de).

KEY FEATURES

5000 Watts per channel across 4 channels with DSP, at full load, without the need for power sharing
Oversized, high-capacity power supplies ensure full power delivery at 2-ohm loads on all channels, while maintaining high efficiency — including operation on constant voltage lines: 25V, 70V, and 100V
Analog and digital audio inputs: AES3 and Dante™
Intuitive front panel operation, plus remote control and monitoring via Software Engineer 8
Device and loudspeaker module grouping, with multilayer zone correction for EQ, DELAY, and GAIN
Advanced inter-system integration features and a wide range of compatible connectors and control platforms (Q-Sys, Symetrix, Crestron, AMX, and others)
Full preset library for FAVO AUDIO loudspeaker modules, with support for third-party brands
Manufactured in the United Kingdom, fully programmed, tested, and supported by FAVO AUDIO – Poland

TECHNICAL DATA

GENERAL SPECIFICATIONS

Number of channels: Four
Total power output, all channels driven: 20,000, Watts RMS
Audio inputs: 4x Analogue, 2x AES3 and 4x Dante™ / AES67 (factory fitted option)
Digital Signal Processing: high performance DSP processing on all inputs and outputs
Control, monitoring and system status alarms:
- Ethernet network
- volt-free relay and contact closure port
Power-save modes:
- standby after user defined time, instant wake up on audio
- deep ECO sleep after user defined time, wake up on command
System sleep and wakeup: front panel switch, network command, and audio detection

POWER OUTPUT

Power specification: RMS output power per channel, all channels driven with continuous program material and a nominal ambient temperature of 40°C / 105°F
Crest Factor of 4 (12dB), 2-Ohm nominal load: 5,000W
Crest Factor of 2.8 (9dB), 4-Ohm nominal load: 3,000W
Crest Factor of 2 (6dB), 8-Ohm nominal load: 1,500W
Bridged, per channel pair, 4-Ohm nominal load: 10,000W
100V line (CV) operation, Crest Factor 4 (12dB): 5,000W
70V line operation, Crest Factor 4 (12dB): 3,500W
25V line operation, Crest Factor 4 (12dB): 1,250W

AUDIO PERFORMANCE

Amplifier topology: Linea Research high performance Class D
Amplifier modulation scheme: Low feedback, multiple loop, with feed-forward error correction
Dynamic range: Analogue input, better than 113dBA typical
Measured relative to the amplifier output: AES / Dante™ input, better than 114dBA typical
Gain (with all DSP level controls set to 0dB): 32dB
Frequency response, 4 Ohm load: <7Hz to >30kHz, 4 Ohms, -2.5dB points
Total harmonic distortion, THD: <0.05% typical, 1kHz signal, AES17 filter, 4 Ohm load
Inter-channel crosstalk, worst case combination: better than -85dBr at 1kHz and -75dBr at 10kHz
Maximum analogue input level: +20dBu
Analogue input sensitivity range for full output: 0dBu to +20dBu, continuously adjustable
Analogue input and link: Input 20k Ohm, electronically balanced, link directly connected to input
Analogue ground scheme: AES48 standard compliant
AES3 input: Transformer isolated with unique active cable equalisation for extended range
AES3 link: Active AES3 signal regeneration. Automatic direct bypass to the AES3 input ensuring the audio signal will still flow even when the amplifier is powered down
AES3 supported sampling rates: 24kHz to 192kHz (auto locking)

DIGITAL SIGNAL PROCESSING

Resolution: 40 bit, Linea Research proprietary algorithms
Sample rate: 96kHz throughout
Physical inputs to DSP drive modules: 4x analogue, 2x AES & 4x Dante™ / AES67 inputs can be routed to four DSP drive modules
Drive module input processing:
- input signal routing, delay, gain, HPF, Phase, Mute
- EQ: 2x low shelf, 6x PEQ / band pass, and FIR shelving filters
Drive module output processing:
- source, delay, gain, Phase, Mute, crossover filters, VX limiters
- EQ: low shelf, 8x PEQ / band pass, and shelving filters
Preset management:
- 10 snapshots for device wide setup, 50 presets for loudspeaker settings
- presets can be recalled to sets of outputs or individual outputs as required
Unique high performance processing
Overlays:
- twelve additional independent overlays of EQ, Delay, and Gain
- flexible grouping for effective control of many amplifier channels in large systems
Class leading VX limiters: see the ‘speaker protection systems’ section
Hardman crossover filters: better out of band rejection than Linkwitz-Riley
LIR crossover filters: linear phase without the compromises of FIR filters

POWER SUPPLY

Topology (main power supply): Linea Research high performance Series Resonant
Topology (auxiliary and standby supplies): low quiescent Eco-Flyback
Internally stored energy: >600 Joules
Nominal mains input voltage range: 85V to 240V Power supply automatically detects voltage and configures accordingly
Mains input frequency range: 47Hz to 63Hz
Mains inrush current (max for <10ms): 6A at 115V and 12A at 230V

PHYSICAL

Cooling: dual vari-speed fans, front to back airflow. Washable, toolless change filter media.
Analogue IN and LINK: 4x female and 4x male Neutrik™ XLR
AES3 dual channel IN and LINK: 1x female and 1x male Neutrik™ XLR
Amplifiers output: 4x Neutrik Speakon™ NL4 connectors
Mains input connector: Neutrik 32A Powercon™
Dante Primary and Secondary: 2x Shielded RJ45
Relay output & contact closure inputs: Phoenix™ pluggable terminal block (supplied)
Front panel display (backlit): graphical, high contrast, daylight visible
Front panel encoders: two, indented, velocity sensitive
Front panel push buttons: large, tactile, illuminated
LED indicators: bright, easily differentiated
Enclosure: standard 19” 2U (88mm), 357mm (14”) deep with handles and optional rear support
Net Weight: 12.5kg (27.5 pounds).

Download System Engineer - DSP amplifier control and telemetry software

System Engineer 8 (ZIP file) - for FAVO MD series amplifiers and LSP448 Processor - Windows only
System Engineer 7 (ZIP file) - for FAVO MD series amplifiers and LSP448 Processor - Windows only

Download brochure, data sheet and operation manual:

Download - FAVO MD BROCHURE EN PDF
Download - FAVO MD POWER CONSUMPTION AND HEAT DISSIPATION SPECS EN PDF
Download - FAVO MD LSP OPERATION MANUAL EN PDF

Latest presets memory block for FAVO MD4420

Be careful - this procedure will delete old presets and replace with new settings
DOWNLOAD - DEVICE FACTORY FILE (DFA) save on Your hard drive and unpack ZIP file
Use System Engineer 7 to upload DFA file - SE7 ZIP DOWNLOAD -
Use command: File/Load Factory Settings

30-months warranty for electronics

Favo provides a 30-months warranty on all electronic devices in the case of production defects. It also provides the fastest technical support in the event of a failure and offers a comprehensive post -warranty service.