Saramonic K9 Dual-Channel Digital UHF Wireless Microphone System

Saramonic K9 Dual-Channel Digital UHF Wireless Microphone System — A two-channel digital UHF system for production sound, with two bodypack transmitters, a camera-mount receiver, and two 3 mm IP67 lavalier microphones. The system tunes across 550 to 960 MHz, the Saramonic System app assigns the legal band for its location, and the receiver scans for clean frequencies and sends them to the transmitters. Digital transmission carries a 130 dB input dynamic range at the transmitter and a 120 dB analog output dynamic range at the receiver, with 6.3 ms latency.

Each transmitter records 24-bit or 32-bit float WAV files to microSD (up to 256 GB, with two 32 GB cards included) and carries SMPTE LTC timecode, synced wirelessly from a Saramonic TC-NEO or the app, or by cable from a third-party timecode box. K9 systems sold and operated in the US cannot transmit wirelessly and record onboard at the same time. The receiver’s two locking 3.5 mm outputs and USB-C digital output connect to cameras, mixers, recorders, phones, and computers, and output B can run as a monitor feed for IFB. Transmitters and receiver run on two AA batteries or USB-C power, and one phone controls up to 48 devices through the app.

Features

Two bodypack transmitters and a dual-channel camera-mount receiver
550 – 960 MHz digital UHF with automatic frequency scanning
130 dB transmitter input dynamic range and 120 dB analog output
24-bit or 32-bit float onboard recording to microSD
SMPTE LTC timecode with wireless or wired sync
Selectable 10, 25, 50, or 100 mW RF power
Two ⌀3 mm IP67 lavaliers with locking 3.5 mm connectors
Receiver with front color display and top OLED status screen
Saramonic System app control for up to 48 devices
AA or USB-C power, up to 9 hours on the transmitters

Specifications

System
Channels	2
Transmission Range	100 m (328.08 ft) line of sight
Latency	6.3 ms
US Operation	Units sold and operated in the US cannot transmit wirelessly and record onboard simultaneously
Transmitter (K9TX)
RF Modulation	Proprietary digital RF modulation
RF Frequency Range	550 – 960 MHz (local legal bands assigned by region)
RF Power	10, 25, 50, 100 mW
RF Frequency Step	100 kHz
RF Bandwidth	200 kHz
Channel RF Spacing	700 kHz
Antenna Connector	50 Ω SMA
Dynamic Range	130 dB
Distortion	<0.5%
Frequency Response	20 Hz – 20 kHz
Low Cut	Off, 75 Hz, 100 Hz, 150 Hz
Mic Power	MIC 3 V, MIC 5 V, LINE
Mic Connector	Locking 3.5 mm TRS
Gain Range	0 – 30 dB
ADC Sampling Rate / Bit Depth	48 kHz / 24-bit
Clock Accuracy	0.15 ppm (1 frame in 48 hours)
Timecode	LTC (SMPTE)
Timecode Frame Rates	23.98, 24, 25, 29.97, 29.97DF, 30
Recording Media	microSD (up to 256 GB)
Recording Format	WAV, 48 kHz, 24-bit or 32-bit float
EIN	−132 dBV (−130 dBu) max A-weighted, 30 dB gain, 150 Ω source impedance
Power Supply	2 × AA batteries or USB-C
Battery Life	Up to 9+ hours with 2 AA batteries
Dimensions	8.00 × 6.20 × 1.90 cm 3.15 × 2.44 × 0.75 in
Weight	85 g (3.00 oz) without batteries and antenna 120.5 g (4.25 oz) with batteries and antenna
Operating Temperature	−20 to 45 °C −4 to 113 °F
Storage Temperature	−30 to 60 °C −22 to 140 °F
Receiver (K9RX)
RF Frequency Range	550 – 960 MHz (local legal bands assigned by region)
Antenna Connector	2 × 50 Ω SMA
Audio Outputs	2 × locking 3.5 mm analog (A / B) USB-C digital
Analog Output Dynamic Range	120 dB
Distortion	<0.5%
DAC Bit Depth	24-bit
Output Modes	Mono, Stereo, Headphone
Power Supply	2 × AA batteries or USB-C
Battery Life	Up to 8+ hours with 2 AA batteries
Dimensions	8.81 × 6.61 × 2.36 cm 3.47 × 2.60 × 0.93 in
Weight	112 g (3.95 oz) without batteries and antenna 157.5 g (5.56 oz) with batteries and antenna
Operating Temperature	−20 to 45 °C −4 to 113 °F
Storage Temperature	−30 to 60 °C −22 to 140 °F
Lavalier Microphone
Polar Pattern	Omnidirectional
Max SPL	118 dB
Dynamic Range	110 dB
Sensitivity	−35 dB (1.5 V, 2.2 kΩ, 1 kHz)
Self-Noise	25 dB typical (A-weighted)
Signal-to-Noise Ratio	>68 dB
Operating Voltage	1.3 – 5.0 V
Frequency Response	20 Hz – 20 kHz
Distortion	<3%
Weatherproof Rating	IP67
Tensile Strength	≥50 N maximum pulling force
Capsule Size	⌀3 × 17.5 mm
Operating Temperature	−20 to 70 °C −4 to 158 °F
Weight	11 g (0.39 oz)
Cable Length	1.8 m (5.91 ft)
Connector	Locking 3.5 mm TRS (Sennheiser pin-out)