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D Squared = four channel evolution

D Squared = four channel evolution

D Squared = four channel evolution

The D Squared wireless system provides 24-bit, 48kHz digital audio

Incorporating Lectrosonics’ fourth-generation digital architecture, the D Squared wireless system includes a DSQD four-channel digital receiver, DBu digital beltpack transmitter and a DHu digital handheld transmitter. System features include 24-bit, 48kHz digital audio, two-way IR sync, three levels of encryption and a tuning range from 470–614MHz.

The DSQD receiver incorporates high-resolution colour display, analogue or Dante digital outputs and rear BNC antenna ports with loop-thru buffered BNC outputs to another receiver. It is compatible with the DB Series and DHu, the stereo DCHT and the half-rack M2T. Three different receiver diversity schemes can be used, including switched, digital ratio diversity or digital frequency diversity. The DSQD includes digital talkback capability when used with any talkback-enabled transmitter such as the DBu and DHu digital transmitters.

A headphone jack is included on the DSQD for audio monitoring per channel. Additionally, Ethernet and USB ports allow the receiver to connect to the Wireless Designer software for programming and monitoring, while a serial port enables connection between receivers for data sharing and frequency coordination. Antenna bias power can be called up in the menu and front-panel LEDs show the status.

The DBu beltpack and DHu handheld transmitters are capable of extending their operating time on two AA batteries, offering RF power selections at 25mW and 50mW, respectively. Input gain is adjustable over a 45dB range in 1dB steps to allow an exact match to the input signal level, reportedly maximising the dynamic range and signal-to-noise ratio. Two-way IR ports allow for encryption key transfer and other data sharing between units.

The DBu beltpack unit features a removable antenna with SMA connector, incorporating a TA5 connector with servo-bias input for use with a wide range of lavalier and dynamic mics together with line-level sources. A multi-function switch on top of the aluminium transmitter can be configured as power on/off, mute, talkback or bypassed altogether.


The DHu handheld transmitter is compatible with the HHC cardioid condenser capsule for use with capsule heads incorporating standard 1.25-inch openings and 28-thread pitch. A programmable button on the outside of the housing can be configured as a push-to-talk, cough or mute and power switch.

M2C
M2C

Lectrosonics has also announced the release of the M2C active antenna combiner. Designed as a matching component to the manufacturer’s digital transmitters including the DCHT portable stereo unit and the Duet M2T dual stereo unit, up to eight transmitter sources can feed a single antenna to minimise cabling in multichannel systems. The M2C inputs are reportedly isolated to minimise crosstalk and intermodulation between RF channels. Front-panel LED indicators display active status of RF inputs, and a USB port is provided for firmware updates. The M2C is a 1U, AC mains-powered, fan-cooled unit with eight 50Ω BNC input ports and a single 50Ω BNC output port. The frequency range is 470–614MHz and the unit accepts input sources up to 100mW.



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