HXII-KB/HKB-2X Speaker Station

The HXII-KB/HKB-2X Speaker Station from Clear-Com is a cutting-edge intercom solution engineered for high-performance communication in demanding broadcast and live event settings. Designed to seamlessly integrate with Clear-Com’s HXII and other intercom systems, this speaker station delivers exceptional audio clarity and reliability. The HXII-KB/HKB-2X is equipped with advanced features that enhance user control and communication efficiency, making it a vital tool for professionals in the industry.

Built with a focus on durability and ease of use, the HXII-KB/HKB-2X features a robust design that can endure the rigors of professional environments. Its intuitive interface includes programmable keys and a high-resolution display, allowing users to manage communication channels and settings with ease. The speaker station supports a variety of configurations and connections, ensuring it meets the specific needs of any production setup, whether it’s in a broadcast studio, on stage, or in a control room.

The HXII-KB/HKB-2X is not only about performance but also flexibility. It supports multiple HelixNet system hosts, making it adaptable to various communication needs. The unit’s advanced audio technology ensures clear, distortion-free sound, while its ergonomic design enhances user comfort and efficiency. With its combination of high-quality audio performance, flexibility, and user-friendly features, the HXII-KB/HKB-2X is an ideal choice for any professional intercom system.

Key Features

• High-quality audio performance for clear and reliable communication
• Seamless integration with Clear-Com HXII and other intercom systems
• Ergonomic design with user-friendly controls and high-resolution display
• Programmable keys for quick access to communication channels and settings
• Supports multiple HelixNet system hosts for flexible configurations

Technical Specifications

Dimensions
4.5″ x 8.2″ x 2.4″
(114 x 209 x 61mm)
Weight
HXII-KB: 15.2 oz (0.43 kg)
HKB-2X: 18.8 oz (0.53 kg)

Connectors
Powerline: Terminal Block 5 pole, 5mm pitch
Ethernet/PoE: RJ45
Headset: 4-pin XLR–M or 7-pin XLR-M with (2) PTT GPI (-X7)
Gooseneck Mic: 3-pin Tuchel
Power Connector: Terminal Block 2 Pole, 5mm

Microphone Pre-amplifier
Headset Mic Impedance: 200Ω (Dynamic)
Headset Mic Voltage: 1.7V (Electret selectable)
Limiter: +23dB
Mic Gain: 60dB (Dynamic), 45dB (Electret)
Frequency Response: 300Hz – 10 kHz ± 3dB, contoured for intelligibility
Distortion: <0.1% THD @ 1kHz
Noise: <-65dBu
Headphone Limiter: 0dB (selectable)

Headphone Amplifier
Load Impedance: >32Ω
Output Level: +12dBu before clipping
Sidetone: -12dB (selectable)
Max Gain: 0dB
Frequency Response: 40Hz – 10kHz ±3dB
Distortion: <0.1% THD @ 1kHz
Noise: -65dBu
Headphone Limiter: 0dB (selectable)

Loudspeaker Amplifier
Load Impedance: 8Ω
Output Level: +18dBu before clipping
Max Gain: 18dB
Frequency Response: 200Hz – 10kHz ±3dB
Distortion: <0.1% THD @ 1kHz
Noise: <-50dBu

Logic Inputs – PTT/GPI (-X7 only)
Input: 2
Style: Powered input, close contact to ground
Detection Voltage (Min): 3V
Input Voltage (Max): 5V
Output Voltage: 5V
Output Current (Max): 1mA

Device Power
Voltage: 48V DC
Current (Max): 0.3A
Power (Max): 14.4W
BTU (Max): 49BTU/hr
Input Power Connector: Terminal Block 2 Pole, 5mm
AC Adapter – Wall (not included)
Input Voltage Range: 100 – 240V AC
Input Frequency Range: 50 – 60Hz
Input Power Connector: Universal
Output Voltage: 48V DC
Output Power (Max): 15W
Output Power Connector: KPPX-3-P
PoE – Power over Ethernet
IEEE 802.3af-2003 – Class 0
PSE: 15.4W DC max @ Power Source Req.
PD: 12.95W DC max @ Powered Device Draw
Note: HelixNet Speaker Station must be earthed to a clean ground when PoE is used. Preferably with the screen of a shielded CAT5/6 cable.

Powerline
Input Voltage: ±29.5V DC
Input Current (Speaker Off): 0.3A
Input Current (Max): 0.5A
Powerline Utilization:
Speaker Station (Local Power) = 1 beltpack
Speaker Station (Speaker Off) = 2 beltpacks
Speaker Station (Speaker On) = 3 beltpacks
Note the maximum Powerline capacity of the HMS-4X.
Use HelixNet Cable Calculator to validate load and cable distance.

Environmental
32º – +113ºF (0 – +45ºC)
90% relative humidity

Network Specifications (Firmware Version 4.5+)
Network Protocols
Ethernet IPv4 – Unicast Audio and Control
mDNS – Multicast Device Discovery
Layer 3-Routable w. mDNS function limitations
HTTP-Management
I.V. Core–Decentralized Network Routing & Mixing
IVP-Proprietary intercom Audio and Control
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, Linking
Optional for device names and linking
Network Parameters
HMS-4X Endpoint Resource Use: 1
Bandwidth:
300 (max) kbps from each Speaker Station to Arcadia/HMS-4X
1200 (max) kbps from Arcadia/HMS-4X to Speaker Station
Network Jitter Tolerance: <= 128ms jitter buffer per audio stream receiver automatically adjusted to network performance
QoS tags: DSCP=34 Assured Forwarding (AF=41)
Link-Local Default IP address range: 169.254.0.0/16
System reserved IP range: 10.0.0.0/8 for endpoints
Recommended Ethernet Switches
• Managed Ethernet Switch – Layer 3
• 100/1000 Base-T ports for endpoints
• 1000 Base IP Trunks between switches
• QoS configuration
• Energy Efficient Ethernet bypass option
• IGMP Snooping bypass option