Summary
- The Saramonic K9 XTX turns professional XLR microphones into wireless devices.
- It operates across digital UHF frequencies from 550 to 960 MHz.
- It supports 32-bit float recording, 64 GB of storage and timecode.
- It provides selectable phantom power from 3V to 48V.
- Battery life reaches up to 14 hours, while the listed price is 266 euros.
The Saramonic K9 XTX is a new plug-on wireless transmitter that turns professional XLR microphones into wireless audio solutions for film productions, documentaries and live events.
Saramonic has introduced the K9 XTX, a digital UHF transmitter that connects directly to microphones and audio sources equipped with an XLR connector, reducing the need for long cables between the microphone, boom and recorder.
The solution is particularly relevant for small crews and location productions, combining the use of existing professional equipment with backup recording, timecode and centralized management of multiple devices.
Wireless operation across a wide UHF range
The K9 XTX operates across the 550 to 960 MHz frequency range and uses a GPS-based frequency update system designed to adapt to the radio-frequency regulations of the region where a production is taking place.
Its use of UHF distinguishes it from many smaller wireless systems that depend on the often congested 2.4 GHz band. The aim is to provide a more stable connection and better performance in demanding environments, although real-world results will always depend on local conditions and the legally available frequencies in each country.
Turning professional XLR microphones wireless
The transmitter features a standard three-pin XLR connector and can be used with dynamic and condenser microphones, shotgun microphones, handheld interview microphones, boom microphones and devices providing a line-level signal.
Phantom power can be selected at 3V, 5V, 12V, 24V or 48V. It can also be disabled when dynamic microphones or other sources that do not require power are connected.
The XLR connection includes a locking mechanism to keep the transmitter securely attached during recording. For boom operators, removing the cable running back to the recorder can provide greater freedom of movement inside vehicles, at outdoor locations and on crowded sets.
32-bit float backup recording
The K9 XTX supports internal 32-bit float recording and includes 64 GB of storage. Recording takes place directly inside the transmitter, creating an additional backup in case of a brief wireless signal interruption or a problem elsewhere in the audio chain.
The 32-bit float format provides greater flexibility when recovering recordings containing sudden changes in level. Saramonic also states that the system offers a dynamic range of 130 dB.
According to the original report, internal recording is not available on the version intended for the United States.
Built-in timecode for multi-camera productions
The transmitter supports built-in wireless timecode synchronization as well as a wired timecode connection. This allows audio and multiple cameras to remain synchronized throughout a shoot.
In productions using several cameras or separate audio recorders, reliable synchronization can significantly reduce the time required to match the files during editing.
Remote management of up to 48 devices
Through the Saramonic System App, users can remotely manage up to 48 compatible devices from a single interface.
The application provides control over frequency coordination, firmware updates, device grouping and sleep mode. This is aimed primarily at multi-camera productions, crews using several transmitters and shoots involving multiple speakers or interview subjects.
Battery life and location use
According to Saramonic, the K9 XTX can operate for up to 14 hours using rechargeable batteries, while external power through USB-C is also supported.
The transmitter includes a large color display for monitoring settings and adjustable RF output power of up to 100 mW. An optional waterproof housing, sold separately, provides IP66-level protection for use in challenging weather conditions.
Price and availability
The Saramonic K9 XTX is available through the company’s official online store and authorized dealers. At the time of publication, the standalone transmitter is listed at 266 euros.
Find more here.
What we think
The K9 XTX does not attempt to replace professional XLR microphones, but instead brings them into a more flexible wireless system. Its combination of UHF transmission, phantom power, timecode and backup recording makes it an interesting option for productions that need faster setup and less dependence on cables. Its actual value will depend on connection reliability under real-world conditions, the compatibility of available frequencies and its performance during extended professional productions.
Frequently asked questions
What is the Saramonic K9 XTX?
It is a plug-on digital UHF wireless transmitter that connects to microphones and other audio sources through an XLR connector.
Which microphones are compatible?
It can operate with dynamic and condenser XLR microphones, shotgun and boom microphones, handheld interview microphones and devices with a line-level output.
Does it support phantom power?
Yes. It provides selectable 3V, 5V, 12V, 24V and 48V phantom power, which can also be disabled.
Does it have internal recording?
It supports 32-bit float recording with 64 GB of storage. According to the original report, the feature is unavailable on the United States version.
How much does it cost?
The standalone transmitter is listed at $299 on the official online store at the time of publication.
