CASTER

CASTER - Auracast™ icon
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  • Hearing Technology Innovator 2025 award badgeHearing Technology Innovator 2025Winner - Audio and Induction Loop Systems

CASTER is a professional Auracast™ transmitter delivering high-quality, low-latency audio across large-scale environments.

Built for real-world deployments, it enables crystal-clear audio broadcasting to unlimited listeners - from theaters and classrooms to museums and transportation hubs.

Flexible by design, CASTER supports both open and secure broadcasts, making it suitable for everyday use as well as sensitive and confidential environments.

With PoE in and PoE out, it enables clean installations and seamless cascading of power, audio, and control over Ethernet - combined with centralized management via Hive Central.

  • Low-latency audio broadcasting (<40 ms)
  • High-performance RF coverage with flexible antenna options (internal or external)
  • Open or secure broadcasting
  • Analog or Dante models
  • Flexible broadcasting modes (stereo or dual-mono)
  • Power, audio & control cascading
  • Advanced audio processing (AGC, LPF, HPF)
Cinemas Museums Music Venues Classrooms Courtrooms Sports Arenas Airports Houses of Worship

SKUs

CASTER X · White
BTR-CASTER-X-WHT
CASTER X · Black
BTR-CASTER-X-BLK
CASTER XD · White
BTR-CASTER-X-DNT-WHT
CASTER XD · Black
BTR-CASTER-X-DNT-BLK
Seamless Network Expansion
  • 1. Seamless Network Expansion

    Seamlessly expand your Auracast™ network to cover larger distance or to increase audio stream capacity over a single Ethernet connection.

  • 2. Adaptive RF Control

    Switch between internal and external antennas to optimize coverage for any deployment.

  • 3. Complete Hybrid Streaming Solution

    Seamlessly integrate CASTER with B-SHOW for high-quality, venue-wide audio coverage across Wi-Fi and Auracast™.

  • 4. Flexible Management & Control

    Choose between the intuitive web-based management panel and advanced Hive Central software to match your project requirements.

  • 5. Control System Integration via API

    Integrate CASTER with third-party control systems for seamless synchronization with control panels, calendars, and more.

  • 6. Analog or Dante Models

    Available in analog or Dante models to match your project requirements.

  • 7. Bridged or Isolated Networking (Dante®)

    Run CASTER XD your way. In Bridged mode, both LAN ports carry Dante® and control, so units daisy-chain with a single cable run. In Isolated mode, Dante® and Bettear control each get their own port, keeping audio and management on fully separate networks.

Product details

Audio

Analog Inputs (CASTER, CASTER X)
2 × balanced analog, 3-pin 3.5 mm pitch terminal block (IN 1 / IN 2)
Dante® Input (CASTER XD)
Over LAN 1 or LAN 2, patched in Dante Controller or from a Dante device with its own routing control
Input Modes
Stereo / Mono / Mix
Max Input Voltage
2.1 Vrms (4.2 Vrms balanced)
ADC SNR / THD+N
110 dB / -90 dB
Frequency Response
10 Hz - 22 kHz
Input Gain
-12 dB to +32 dB
Sample Rate
48 kHz
Processing
AGC; high-pass filter Off / 80 / 120 / 250 Hz; low-pass filter Off / 8 / 12 / 16 kHz

Radio

Technology
Bluetooth® 5.3 Low Energy (Auracast™)
Frequency Range
2402 - 2480 MHz (2.4 GHz ISM band)
Codec
LC3 (16 / 24 / 48 kHz)
TX Power
Selectable 5 - 20 dBm, from the management panel or Hive Central
Antenna
CASTER - internal. CASTER X and CASTER XD - internal or external, switchable from the management panel or Hive Central
Antenna Connector (CASTER X, CASTER XD)
RP-SMA jack (reverse polarity, male center pin), 50 ohm - fit a 2.4 GHz antenna with an RP-SMA plug
Broadcast Modes
Stereo / Dual Mono; Timecode on CASTER and CASTER X
Extender Mode (CASTER, CASTER X)
Receives audio from a master CASTER over the network to extend coverage
Hybrid Mode (CASTER, CASTER X)
Auracast™ and B-SHOW Wi-Fi streaming at the same time
Secure Broadcast
4 - 16-character password, AES128

Network

Ports
LAN 1 - 1 Gbps (PoE+ in); LAN 2* - 1 Gbps (PoE out)
IP Addressing
DHCP by default, falling back to 192.0.2.1; or static
Ports & Services
HTTP 80; UDP 1337 - 1339, 9000 (API), 5353; mDNS _caster._tcp
Control API
Text-based, UDP port 9000; Crestron driver available
Audio Sharing (CASTER, CASTER X)
Multicast (239.238.237.0/24 with IGMP) or unicast over Ethernet
LAN Port Modes (CASTER XD)
Bridged - Dante® and control on both ports, for daisy-chaining; Isolated - LAN 1 for Dante® only, LAN 2 for Bettear control only

* On CASTER and CASTER X, LAN 2 is disabled by default - the CASTER-S license unlocks it. On CASTER XD, both ports are always enabled, no license required.

Power

Power Supply
12 VDC (positive polarity), 2.5A
Power Consumption
Single-Caster mode: 3.2W / Cascade mode: 8W
PoE
IEEE 802.3at (PoE+, 30W)

* Power supply is not included within the CASTER box.

Regulatory

EU / UK
CE (RED 2014/53/EU); UKCA
USA / Canada
FCC (Part 15.247); ISED (RSS-247)
Japan
MIC / TELEC
Australia / NZ
RCM - AS/NZS 4268, CISPR 32, 2772.2, 62368.1
Environmental
RoHS, WEEE

Physical

Dimensions
200 × 200 × 51 mm; bracket Ø 84 mm
Weight
419 g (0.92 lbs); bracket 25 g
Shipping Weight
589 g (1.3 lbs)
Operating Temperature
-12 °C to +40 °C (10.4 °F to 104 °F)
Colors
White, Black
Mounting
Wall/ceiling bracket (included) or 3/8" threaded stand

In the Box

Supplied
CASTER unit and wall/ceiling mounting bracket
Required
12 VDC / 2.5 A power supply (not included), or power the unit over PoE+
External Antenna (CASTER X, CASTER XD)
2.4 GHz antenna with an RP-SMA plug - sold separately
Compatible Devices
RTX receivers; RTX GO; B-PASS; FORGE XD; Hive Central

Complementary Products

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