DETAILS

The Citronic TU4-C is a PLL Tuneable Quad Channel UHF True Diversity Wireless Microphone System supplied with two handheld transmitters and two bodypack transmitters with neckband and lavalier microphones.

The Citronic TU4-C is the flagship configuration in the TU-series wireless microphone range, combining two handheld microphone transmitters and two bodypack transmitters in a single four-channel system — providing the maximum possible flexibility for demanding stage performances, theatrical productions, conferences, panel events and any other application requiring four simultaneous wireless microphone feeds.

With two vocalists or presenters on handhelds and two performers or speakers using hands-free headset or lavalier microphones, all operating simultaneously from a single 1U rack-mount receiver, the TU4-C provides a complete, professional and ready-to-use four-channel wireless solution that would otherwise require multiple separate systems.

Intelligent Channel Management Across Four Channels

At the heart of the TU-series is a sophisticated channel management system that handles all four channels with equal precision and ease. The full-colour TFT display and rotary encoder on the receiver's front panel allow complete programming of carrier frequency, EQ settings, transmission power and display backlight colour for each of the four channels independently — making it straightforward to identify and manage four different transmitters simultaneously. Each channel wirelessly syncs to its paired transmitter via IR connection, automatically configuring each transmitter to match its receiver channel settings without the need for manual adjustment. An auto frequency sweep function identifies and locks onto the clearest available frequencies across all four channels for reliable, drop-out free operation throughout even the busiest RF environments.

Two Handheld & Two Bodypack Transmitters

The TU4-C is supplied with two full metal handheld microphone transmitters, each fitted with a high-quality dynamic capsule for clear, natural vocal reproduction on stage and in spoken word applications. Two compact and lightweight bodypack transmitters — each weighing just 74g without batteries — are also included, each supplied with both a neckband microphone and a lavalier microphone, giving each bodypack user the flexibility to choose their preferred microphone option. All microphone connections feature fully balanced signal connections for clean, interference-free audio across all four channels. A wireless range of up to 60 metres provides ample freedom of movement for all four performers or presenters simultaneously. Two AA batteries are supplied per transmitter.

Flexible Connectivity & Tuning

Each of the TU4-C's four channels features an independent 7-band EQ for precise tonal shaping to suit different voices, microphone types and acoustic environments. Individual XLR outputs per channel allow direct connection to mixing desks and PA systems, whilst a single mixed jack output provides a convenient alternative for simpler setups. Twin BNC antennas with true diversity reception and internal antenna distribution can be connected at the rear of the receiver or repositioned to the front panel when rack-mounted using the supplied BNC extension cables. The system operates licence-free within the 863–865MHz UHF band in the UK and EU, with additional channel 65 frequencies (823–832MHz) also available with a PMSE licence.

Citronic TU4-C Key Features:

• Four-Channel Mixed Transmitter Configuration: Two handheld and two bodypack transmitters for the ultimate in four-channel wireless versatility — ideal for complex stage, theatrical and conference applications.
• Quad Channel True Diversity UHF Reception: Four independently managed channels with dual antenna true diversity and internal distribution for reliable, interference-free wireless performance up to 60 metres.
• Full 1U Rack-Mount Chassis: Fits neatly into any standard 19" rack enclosure for professional fixed or touring installations.
• PLL Tuneable Channels: Each channel individually tuneable across 8 groups of 8–16 carrier frequencies within the licence-free UHF and regulated duplex gap bands.
• Full-Colour TFT Display: Front panel display with rotary encoder for independent programming of frequency, EQ, transmission power and backlight colour per channel.
• Wireless IR Transmitter Sync: Receiver wirelessly syncs each channel's settings to the paired transmitter via IR connection for effortless four-channel setup.
• Independent 7-Band EQ Per Channel: Precise tonal control across all four channels for different voices and microphone types.
• Auto Frequency Sweep: Automatically identifies and locks onto the clearest available frequencies across all four channels for drop-out free operation.
• 2 x Premium Full Metal Handheld Transmitters: Robust metal housing with high-quality dynamic capsule for clear, natural vocal reproduction.
• 2 x Compact Lightweight Bodypacks: Each weighing just 74g without batteries for comfortable extended wear.
• Neckband & Lavalier Microphones Included Per Bodypack: Two microphone options per bodypack for maximum versatility across stage, theatrical and presentation applications.
• Fully Balanced Microphone Connections: All supplied microphones feature fully balanced signal connections.
• Individual XLR Outputs & Mix Jack Output: Flexible output options for mixing desks, PA systems and simpler setups.
• Licence-Free UK & EU Operation: 863–865MHz licence-free, with PMSE-licensed 823–832MHz also available.
• Front or Rear BNC Antenna Connection: Supplied extension cables for flexible rack-mounted or desktop use.
• Batteries Included: 2 x AA batteries supplied per transmitter.
• Mains Adaptor Included: 12–18V DC, 1000mA power supply supplied.

SPECS & DOWNLOADS

Download the PDF User Manual Here >

Citronic TU4-C Specifications:

Receiver

• System Type: True diversity UHF PLL tuneable, quad channel
• Carrier Frequencies: 823–832MHz (PMSE licence required) / 863–865MHz (licence-free)
• Channel Groups: 8 groups of 8–16 frequencies
• Outputs: Individual XLR per channel, single mix jack output
• Antenna Connection: 2 x BNC (rear or front panel via supplied extension cables)
• Display: Full-colour TFT with rotary encoder
• EQ: Independent 7-band per channel
• Power Supply: 12–18V DC, 1000mA (mains adaptor included)
• Dimensions: 482 x 185 x 44mm (1U)
• Weight: 1.513kg

Handheld Transmitters (x2)

• Capsule Type: High-quality dynamic
• Housing: Full metal
• Wireless Range: Up to 60 metres
• Batteries: 2 x AA per transmitter (included)
• Dimensions: 258 x 47mm Ø
• Weight: 354g each (without batteries)

Bodypack Transmitters (x2)

• Wireless Range: Up to 60 metres
• Batteries: 2 x AA per transmitter (included)
• Dimensions: 90 x 60 x 25mm
• Weight: 74g each (without batteries)

Neckband Microphones (x2)

• Connection: Fully balanced
• Dimensions: 180 x 140 x 60mm
• Weight: 28g each

Lavalier Microphones (x2)

• Connection: Fully balanced
• Dimensions: 27 x 12mm Ø
• Weight: 23g each

In the Box

• 1 x 1U rack-mountable receiver
• 2 x handheld transmitters
• 2 x bodypack transmitters
• 2 x neckband microphones
• 2 x lavalier microphones
• 2 x UHF antennas (BNC)
• 2 x BNC extension leads
• 12V DC power adaptor
• 2 x AA batteries per transmitter