Connectors

4-wire: (2) EtherCON RJ45

4-wire Option Module Inputs

Maximum Level Before Clipping: 18dBu
Nominal Input Level: 0dBu (selectable)
Input Impedance: >= 10KΩ

Route to 4-wire output at 0dBu in:
Frequency Response: 20Hz – 10kHz ±3dB
Distortion: <0.2% THD @ 1kHz
Noise: <-65dBu

4-wire Option Module Outputs

Maximum Level Before Clipping: 18dBu
Nominal Output Level: 0dBu (selectable)
Output Impedance: <= 100Ω
Route to 4-wire input at 0dBu in:
Frequency Response: 300Hz – 12kHz ±3dB
Distortion: <0.1% THD @ 1kHz
Noise: <-55dBu

Dimensions

2.2 x 7.4 x 1.5in (HxWxD)
(57 x 187 x 39mm)

Weight

13oz (0.38kg)

Network Specifications (Firmware Version 4.2+)

Network Protocols

Ethernet IPv4–Unicast Audio and Control
mDNS–Multicast Device Discovery
Layer 3 routable with mDNS function limitations
HTTP–Management
RTP–Audio Transport
WavPack–Audio Codec

Network Ports

Unicast:
Port 80 TCP–System Management
Port 6001 TCP–System Management
Port 6001 UDP–Audio Streams

Multicast:
Port 5353 UDP–mDNS, Names, Discovery

Network Parameters

HMS-4X Endpoint Resource Use: 1 per active port
Bandwidth:
300 (max) kbps from each active port to HMS
1200 (max) kbps from HMS to each active port
Network Jitter Tolerance: <= 128ms jitter buffer per audio stream receiver automatically adjusted to network performance
QoS Tags: DSCP=41, Assured Forwarding (AF)
System Reserved IP Range: 10.0.0.0/8 for endpoints