Manufacturer: Fohhn Audio AG
Model: AM-4.4 DAN

The Airea matrix AM-4.4 is the central interface for Fohhn Airea active loudspeakers. 
It has both a 4 × 8 DSP mix matrix with Fohhn DSP and 4 Fohhn Airea Powered outputs for up to 16 loudspeakers. 
Remote control and monitoring is possible via Fohhn Net input or USB-C socket. 

Technical Data

Physical features
dimensions (w × h × d): 		211 × 45 × 330 mm, 1 HE / 1/2 19″
weight [1]: 				2,05 kg

Electronic features
system latency:				1.2 ms
DSP routing (matrix):			4 × 8
frequency response:			5 Hz – 20 kHz
signal/noise ratio:			>140 dB/A
THD+N:					0,00005%
dynamic range:				>140 dB
password protection:			yes
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)
Airea Net Load total:			4 × 200 W
power consumption:			Maximum (RMS) 500 W, Standby 5 W
heat dissipation [2]:			Max. 15 W, 51 BTU/h, 13 kcal/h
temperature range:			0 – 40° C
cooling:				temperature controlled fan

Controller
digital signal processors:		1
independent limiters: 			12
FIR filter:				yes
input gain:				-80 dB – +12 dB
routing gain:				-80 dB – +12 dB
output gain:				-80 dB – +12 dB
EQ:					10-band parametric EQ, gain, +/-12 dB, frequency 10 – 20 kHz, Q 0.1 – 100
limiter / compressor:			12
noise gate:				12
delay:					highpass 10 Hz – 20 kHz, lowpass 10 Hz – 20 kHz, 8 × 0 – 72 ms, (0 – 25 m) outputs, 4 × 0 – 30
					ms, (0 – 10 m) inputs
X-over:					8 × Linkwitz/Riley 4th order, 24dB/oktave
user presets:				100
filter technology:			80-bit double precision
input DSP processing:			yes

Remote control and remote monitoring
remote control:				Fohhn Net over RS-485, USB-C
remote monitoring: 			temperature, protect, power supply
switching contact: 			Load Preset, Standby On/Off

Connections and controls
mains connection: 			1 × C14 IEC socket
switching contact 1 and 2: 		1 × phoenix 3-pin
outputs: 				4 × RJ45, Fohhn Airea powered
USB Config: 				1 × USB-C socket

Display (rear)
receive / send LED: 			remote control

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

Input interface Dante (DAN)
inputs:					1 × RJ-45 100BASE-T Ethernet, Dante, 4 × 48 kHz
latency:				Dante + 0.6 ms
support for AES67:			yes


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