THEOS Dual-Channel Digital UHF System (Global)

Dual-Channel Wireless System
Capture two audio sources at once for efficient and flexible recording setups.

Wideband UHF Performance
Operates across a broad frequency range to avoid interference and ensure stable audio.

Reliable Digital Transmission
Delivers clean, consistent sound with minimal dropouts.

Built-In Backup Recording
Transmitter records audio internally to safeguard against signal loss.

32-Bit Float Recording Option
Protects your audio from clipping and level issues during recording.

Wireless Timecode Sync
Keeps audio perfectly aligned with video for faster and easier editing.

Remote App Control
Adjust settings, scan frequencies, and manage devices directly from your phone.

Full Color Display
Clear screen shows audio levels, battery status, and system information at a glance.

Flexible Output Options
Connect easily to cameras, recorders, or headphones with multiple output modes.

Swappable Antenna System
Change antennas to optimize signal or replace them when needed.

Durable Metal Construction
Strong aluminum body built for professional use on set.

Long Battery Operation
Designed to last through extended shooting sessions without interruption.

Ideal for Professional Filmmaking
Perfect for film, broadcast, and on-location audio recording.

General Specifications
Device Type: Digital Wireless Microphone System
System Configuration: Dual-Channel
RF Modulation: Proprietary Digital RF
Frequency Range: 550–960 MHz (Global UHF Wideband)
Frequency Step: 100 kHz
RF Bandwidth: 200 kHz (TX), 700 kHz (RX)
Minimum Frequency Spacing: 700 kHz
Control Interface: Sidus Audio App Remote Control
Display: Full-Color LCD
Chassis Material: CNC-Milled Aluminum

Transmitter Specifications (DBTX)
RF Power: 0 / 20 / 25 / 50 / 100 mW selectable
Dynamic Range: 123 dB
Distortion: <0.5%
Frequency Response: 20 Hz – 20 kHz
Low Cut Filter: Off / 75 Hz / 100 Hz / 150 Hz
Input Gain: 0 to +30 dBu
Mic Input: 3.5 mm TRS
Mic Power: 3 V, 5 V, Line
ADC Bit Depth: Dual 24-bit
Sampling Rate: 48 kHz
Antenna Connector: 50 Ω SMA

Internal Recording (Transmitter)
Recording Media: MicroSD Card (up to 128 GB)
File Format: WAV (BWF)
Recording Format: 24-bit / 32-bit float
Equivalent Input Noise: -132 dBV (-130 dBu)

Timecode
Timecode Type: LTC (SMPTE)
Clock Accuracy: 0.25 ppm
Frame Rates: 23.98, 24, 25, 29.97, 29.97DF, 30, 30DF
Sync Methods: Wireless (TC-1), 3.5 mm input

Receiver Specifications (D2RX)
RF Modulation: Proprietary Digital RF
Frequency Step: 100 kHz
RF Bandwidth: 700 kHz
Sensitivity: -95 dBm
Dynamic Range: 103 dB
Distortion: <0.5%
DAC Bit Depth: 24-bit
Antenna Connector: 50 Ω SMA / SSMA

Audio Output
Analog Output: Dual TRS balanced mono or stereo unbalanced
Digital Output: USB-C
Output Modes: Mono, Stereo

Power
Battery Type: 2 × AA batteries (per device)
Battery Life: Up to 12+ hours (TX), up to 8+ hours (RX)
External Power: USB-C

Physical Specifications
Transmitter Dimensions: 88.45 × 65 × 17.8 mm
Receiver Dimensions: 89.47 × 66.81 × 20.06 mm
Transmitter Weight: 88 g (no battery), 125 g (with battery)
Receiver Weight: 104 g (no battery), 147 g (with battery)
Operating Temperature: -20°C to +45°C

Connectivity
Antenna Ports: SMA (TX and RX)
App Connectivity: Sidus Audio (frequency coordination, gain control, recorder trigger)
Device Pairing: Multiple device control via app

Construction
Body Material: CNC-Milled Aluminum
Antenna Type: Detachable external antennas
Mounting Options: Belt clip, cold shoe compatible

System Features
Spectrum Type: Wideband UHF
Frequency Management: App-based scanning and coordination
Recording Backup: Built-in transmitter recorder
Timecode Sync: Wireless and wired
Intermodulation: Digital intermod-free transmission