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System Amplifiers

MA-4.600

The MA-4.600 is a compact 4-channel digital amplifier with a 4 × 4 routing matrix. It is ideal for smaller and medium-sized projects and it's extremely flexible and cost effective. It can be easily integrated into media controls and is effortlessly configured with the Fohhn Audio Soft via a USB-C socket.

Main features

  • Output power: 4 × 600 W / 4 ohms / 100 V / 70 V
  • Available in two variants: With Analog Inputs (MA-4.600 ANA) or Dante Input (MA-4.600 DAN)
  • Compact and light: 1 U, 5.2 kg
  • Mounting brackets for rack included
  • Two freely programmable switching contacts
  • With Fohhn Airea connection
  • Can be remotely operated and controlled over Fohhn Net
  • Temperature controlled, low noise fan
  • Auto Power Save for minimum standby power requirements
  • Fohhn speaker presets ensure maximum safety, reliability and excellent sound quality
  • 100% engineered and made in Germany

Colours

Fohhn technologies

Possible interfaces

Technical data

Features

weight
5.2 kg
dimensions (W × H × D)
1 U / 19", 440 × 45 × 370 mm

Electronic features

amplifier technology
Class D
amplifier outputs
4
DSP routing (matrix)
4 × 4
frequency response
20 Hz – 20 kHz
signal/noise ratio
> 103 dB/A
THD+N
0,15% (1 kHz, 8 ohms, 3 dB below clipping)
dynamic range
> 120 dB
password protection
yes
auto power save
adjustable from 1 s to 12 h, or never active
protective circuit
over voltage protection, over current protection, over temperature protection, short-circuit protection, DC protection, power on delay, soft start and inrush current limit
power supply
100 – 240 V AC 50/60 Hz, universal power supply with Power Factor Correction (PFC)
power consumption
maximum 700 W, idle state 35 W, Auto Power Save 2 W, standby 2 W
heat dissipation
max. 120 W, 410 BTU/h, 104 kcal/h
temperature range
0 – 40°C
cooling
temperature-controlled fan
output power
4 × 600 W / 4 ohms / 100 V / 70 V, 4 × 300 W / 8 ohms (1 kHz, THD+N <1 %)
minimum impedance
4 ohms
input channels
4

Controller

digital signal processors
1
independent limiters
20
FIR filter
yes
input gain
-80 dB – +12 dB
routing gain
-80 dB – +12 dB
output gain
-80 dB – +12 dB
EQ
8 × 10 fully parametric filters, gain +/-12 dB, frequency 10 Hz – 20 kHz, Q 0.1 – 100
selective 3-band limiting
bass / mid / high
limiter / compressor
8
noise gate
8
delay
4 × 0 – 145 ms (0 – 50 m) outputs, 4 × 0 – 30 ms (0 – 10 m) inputs
X-over
8 × Linkwitz/Riley 4th order, 24dB/oktave, highpass 10 Hz – 20 kHz, lowpass 10 Hz – 20 kHz
user presets
100
speaker presets
100
system latency
1.2 ms
band-specific time constants
yes
filter technology
80-bit double precision
input
Analog or DANTE 32 kHz – 96 kHz, 16/24 bit, AES/EBU
input DSP processing
yes

Remote control and remote monitoring

remote control
Fohhn Net over RS-485, Fohhn Audio Soft, USB-C
remote monitoring
temperature, protect, signals, power supply, Fohhn Net, Fohhn Audio Soft
switching contact
load preset, standby on / off

Display (front)

ready LED
blue = power on, blue flashing = sign
protect LED
red = error / protect / standby
USB Config LED
blue = host, remote control over USB

Connections and controls

outputs
1 × Phoenix 8-pin, max. 3.3 mm² flexibel, 3.3 mm² rigid
USB Config
1 × USB-C socket
Airea Net
1 × RJ-45
mains connection
1 × C14 IEC socket
switching contact 1 and 2
1 × Phoenix 3-pin

Display (rear)

receive / send LED
remote control, Fohhn Net

Input interface analog

latency
1.0 ms
S/N ratio
> 108 dB/A
THD
< 0,005 % typ., < 0,003 % 1 kHz 0 dBu
signal inputs
analog, max. signal +18 dBu, phantompower (24 V DC) switchable
inputs
4 × analog
input impedance
10 kOhms
frequency response
20 Hz – 20 kHz

weight: net weight without optional equipment
heat dissipation: pink noise, 6 dB crest, 1/4 Pmax

Connection variants

Input interface Dante

Features

Support for AES67
yes
latency
Dante + 0.6 ms
inputs
1 × RJ-45 100BASE-T Ethernet, Dante, 4 × 48 kHz

Contact us

+49 7022 93323-0

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