Audio Technica MCB4 Audio-Technica MCB4 Antenna Combiner

Audio-Technica MCB4 Antenna Combiner allows the signals of up to four M3 Wireless In-Ear Monitor stereo transmitters to be combined onto a single transmitting antenna, reducing rack clutter.

A wide-band unit that operates over the 440-865 MHz range, the MCB4 is designed to complement Audio-Technica M3 Wireless In-Ear Monitor Systems. It is also suitable for many other in-ear wireless systems (with external BNC antenna connections) operating within the 440 to 865 MHz range. The MCB4 provides one output and four isolated transmitter inputs. All RF connectors are BNC-type.

Four jacks on the rear panel (controlled by the unit's power switch) provide 12V DC (centre positive) to power as many as four transmitters operating on 12 volts at up to 600 mA each. Included with the unit are four DC cables appropriate for use with M3T (or like-powered) transmitters. The 12-volt supplies for powering transmitters are short-circuit protected. The unit features all-metal construction for extreme durability and protection from radio frequency interference.

• Broadband UHF operation (440-865 MHz range)
• Combines the signals of up to four wireless in-ear monitor transmitters into one antenna
• Centralized power supply with ability to power four individual transmitters
• Maintains clean signals with low distortion
• Includes hardware for front-mounting the antenna for improved performance
• Includes adapters to allow the unit to be mounted into a single rack space

• Description: 4-Way Active Combiner
• Bandwidth: 440–865 MHz
• VSWR:
• System Gain (per channel): 0dB Typical (within specified bandwidth)
• Impedance: 50 ohms, typical (within specified bandwidth)
• Termination Type: BNC Female (5 total)
• Maximum RF Input Power: +20 dBm or 100 mW
• Third Order Intercept Point: Greater than 25 dBm
• Weight: 1.0 kg (2.2 lbs.)
• Dimensions: 210 mm (8.27“) W x 176 mm
  (Base unit only) (6.93“) D x 46 mm (1.80“) H
• Power Supply: Desktop Switching Power Supply
  Rated at 5A @ 12VDC or 60 Watts
  Input Voltage 100-240VAC via detachable IEC 320/C14 cable
  Output is provided on an overmolded 3-pin Molex style termination
• Accessories: IEC 320/C14 power cable (for power supply); 5 - 22" RF (BNC to BNC) cables; 4 – DC power cables; Rack kit for front-mounting antennas and adaptation to a 19" rack
• Transmitter power (optional): 600mA @ 12VDC – 4 outputs

Round off your Sennheiser Tourguide System with the EK 2020-D receiver. Whether conferences, guided tours or hearing assistance: this extremely sturdy and versatile bodypack receiver provides excellent audio and ease of use for your guests. The EK 2020-D can be used with headphones or an induction neckloop for transmitting the sound to hearing aids equipped with a T coil. Digital transmission ensures optimum reception quality, with a range of up to 100 metres outdoors and around 50 metres indoors. The backlit receiver display shows all settings at a glance. Of course, the bodypack receiver can be used in mixed systems with stethoset receivers.

EK 2020-D: just right for everyone. All your guests need to do is connect their headphones or induction neckloop to the receiver. That's it! The receiver can conveniently be clipped to the shirt pocket or worn on a lanyard. When no signal is received, or when the headphones or neckloop are disconnected, the receiver will automatically switch off to save battery life. The operating time is up to 16 hours.

• Digital RF signal transmission

• Intuitive operating concept

• 16 hours battery life

• Free choice of headphones or induction loop

• Backlit LC display

• Sturdy housing

The M3R belt pack receiver is part of the M3 system. Rugged, ergonomic compensate housing includes a field-replaceable flexible-whip antennas. Digital LCD display with soft touch controls. The stereo monitor system offers Personal Mix Control, which gives each musician volume and mix control of two independent signals on stage, via easy-to-use controls on the M2R stereo body-pack receiver. Any number of M2R stereo receivers may be used on the same frequency with a single M2T stereo transmitter. On board 3 level limiter (defeatable) helps protect your hearing from sudden peaks. Includes Audio-Technica earphones with proprietary dynamic drivers offer full frequency response and outstanding isolation with 3 sizes of rubber eartips plus an ear-conforming foam tip. Also, an auxiliary input offers a connection point for an ambient microphone, click track, or other mic- or line-level input.

These rugged systems are built to stand up to the inevitable bumps of life on the road, delivering clear, natural sound for touring and installed-sound uses.

• Receiving System: Double conversion superheterodyne
• RF Sensitivity: 20 dBuV (at 60 dB S/N ratio, 50 ohms termination)
• Headphone Output Connector: 3.5 mm TRS stereo phone jack
• Headphones Output Power: 65 mW (at 32 ohms)
• Antenna Input: SMA-type, 50 ohms
• Aux. Input Connector: 3.5 mm TRS stereo phone jack
• Batteries: 2 x 1.5V AA (not included)
• Battery Life: 8 hours (alkaline) Depending on battery type and use pattern
• Dimensions: 70.0 mm (2.76“) W x 25.0 mm (0.98“) D x 110.0 mm (4.33“) H
• Net Weight: 133 g (4.7 oz), without batteries
• Accessories Included: EP3 earphone; flexible antenna

The ATW-T310b wireless UniPak® body-pack transmitter has both low and high impedance inputs plus a 5V DC bian connection allowing it to be used with condenser and dynamic microphones, as well as Hi-Z instrument pickups. The locking 4-pin HRS-type audio input connector is recessed to protect the connection from damage. Operating on two standard AA batteries, the transmitter features high and low-level RF output settings. The low-level setting allows two additional hours of bttery life while retaining a strong RF signal link. Soft-touch controls provide convenient access to a variety of functions including: RF power, audio input level, power/mute locks and frequency selection. Each transmitterʼs backlit LCD display presents a great deal of setup and operating information clearly and conveniently including battery fuel remaining, mute, and operating frequency. A flashing "Lo-Batt” alert visually signals the battery life is almost depleted. A dual-colour status LED illuminates green when power is on, and red when the transmitter is muted. Programmable power/mute locks limit the functioning of the transmitterʼs power/mute button as desired for particular users and applications. To match the audio input level to the transmitter, a four-position audio input gain setting selected through the function menu is provided.

The body-pack transmitter features a safety cover to protect the soft-touch controls from being accidentally activated and a recessed input connector to increase the life of the microphone cable. Constructed of high impact materials, the body-pack transmitter features a field replaceable whip antenna and captive locking battery cover door.

• RF Power Output: High: 30 mW, Low: 10 mW (switchable), at 50 ohms
• Spurious Emissions: Following federal and national regulations
• Input Connection: Four-pin Locking Connector
  Pin 1: GND, Pin 2: INST INPUT,
  Pin 3: MIC INPUT, Pin 4: DC BIAS +5V
• Batteries: Two 1.5V AA, not included
• Battery Life: High: 6 hours (alkaline), Low: 8 hours (alkaline)
  Depending on battery type and use pattern.
• Dimensions: 66.0 mm W x 24.0 mm D x 87.0 mm H
• Net Weight: 81 g without batteries

 Battery disposal information [77,1 KB]
  User's manual [7,82 MB]

The LD Systems MEI 1000 G2 is an advanced LICENSE FREE* 96 channel UHF in-ear monitoring system delivering natural sound with extended dynamics and low crosstalk in both the 823 - 832 and 863 - 865 MHz bands.

Switchable mono, stereo and focus modes select the perfect monitoring applications while adjustable EQ and limiter functions have been integrated for consistent sound reproduction from 60Hz - 16 kHz with a high S/N ratio and low THD. The LD MEI 1000 G2 allows the use of up to 5 systems simultaneously.

* license free: ISM-Band license free in Europe, please check duplex gap on a country-by-country basis

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• Product type: Transmitter
• Radio frequency range: 823 - 832 and 863 - 865 MHz
• Channels: 96 (8 groups of 12 channels)
• Transmission method: FM, stereo
• RF output: 10 mW
• Frequency response: 60 Hz - 16 kHz
• S/N ratio: 85 dB
• Inputs: 2
• Input connections: XLR/ 6.3 mm jack (combo)
• Input impedance: 14 kOhm
• Antenna connector: TNC
• Controls: up, down, set, power, volume headphone, input level, pad
• Indicators: LC display
• Power supply: 12 - 18 V DC
• Width: 200 mm
• Height: 44 mm
• Depth: 96 mm
• Accessories (included): Antenna, power supply, headphones

The long throw antenna system is made up of three components; The ATCS-A60MX mixer the ATCS-A60RX receiver antenna and the ATCS-A60TX transmitting antenna.

ATCS-A60MX IR transmitter/receiver mixer
•  The master antenna mixer can power up 4 transmitter antennas and 4 receiving antennas.
•  Infrared transmission keeps the signal in the room. Therefore multiple conference systems can be used in
adjacent rooms and the conference stays secure.
•  The ATCS-A60MX includes rack mount adaptors

ATCS-A60RX IR Receiving Antenna (green indicator)
•  The high-power receiving antenna can work up to 15 meters for large conference rooms or high ceiling
meeting rooms.
•  The A60RX can be stand mounted and wall mounted

ATCS-A60TX IR receiver antenna (red indicator)
•  The high-power transmitting antenna can work up to 20 meters for large conference rooms or high ceiling
meeting rooms.
•  The A60RX can be stand mounted and wall mounted

• IR transmitting unit terminal: BNC×4(75 ohms)
• IR receiving unit terminal: BNC×4(75 ohms)
• I/O terminal: BNC×1(75 ohms)
• Operating temperature range: 0 to +40C°
• Power consumption: 50W
• Power supply: 100 to 240VAC, 50/60 Hz
• Dimensions: 44 (H) x 420 (W) x 225 (D) mm
• Weight Approx.: 3.0 kg
• Accessories: AC cord, Rack-mount adapter x 2, Screw to attach the rack-mount adapter x

• Communication method: IR wireless system
• Operating frequency band: 8 to 10 MHz  1 to 5 MHz
• IR wavelength: 870 nm
• Modulation method: Frequency modulation
• Operating distance*: 20 m (TX) 15 m (RX)
• Operating temperature range: 0 to 40C°
• Connecting terminal: BNC jack
• Power supply: 24V dc supplied from the ATCS-A60MX
• Dimensions: 44 (H) x 149 (W) x 97 (D) mm
• Weight: 351 g (TX) 386 g (RX)