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Conference and Discussion System Control Unit - CU-300

SKU: CU-300
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Conference and Discussion System Control Unit - CU-300

The heart of the CS-300 Conference and Discussion System. Controls and powers delegate and chairman microphone units, as well as other audio input and output.

Overview

The CU-300 Control Unit is the core of the ENERSOUND CS-300 Conference and Discussion System controlling chairman and delegate microphone units, as well as other audio inputs and outputs. It also supplies power for up to 50 delegate and chairman units.

The innovative ENERSOUND CS-300 Conference and Discussion System is equipped with a high-quality ECM capsule, intelligent automatic mixing technology and integrated acoustic and mechanical design, providing a turn-key solution and delivering consistently natural, clear audio performance in any environment. The CS-300 is ideal for discussions and meetings of up to 150 participants. Each CU-300 Control Unit can handle up to 50 contribution microphones and with a maximum of 3 CU-300 Control Units per system you can handle up to 150 contribution microphones.

With the Enersound CS-300 push to talk conference microphone system, each microphone is connected to the next one through the attached single cable. The last microphone is connected to the control unit to complete the loop. The control unit has an audio output that combines all of the microphones’ signals, eliminating the need of a multi-channel mixer and an operator to control the various microphones. Consequently, there is only one cable in the system that interconnects all the microphones. This makes the set-up easier, cleaner and eliminates unnecessary cables that may cause noise, failures and visual clutter. In addition, each unit has a button to activate/ deactivate the microphone, a lighted ring that lights up when the microphone is activated to give a visual indication that the mic is active, and a speaker to listen to the audio of the other contribution units and auxiliaries.

A CS-300 Conference and Discussion System consists of:

(1) Control and power supply unit (CU-300)
Maximum of (50) delegate or chairman microphone units (CH-300 & DU-300)
Peripheral audio and/or telecommunication equipment

Features

Quick and easy installation

Set up in a few minutes

Portable and lightweight

Single-cable run daisy chain connectivity

Controls up to 150 delegate and chairman microphone units

Provides power for up to 50 microphone units

Intelligent automatic mixing technology

Stand alone, plug and play operation

Front panel LCD display and controls for simple configuration

Audio IN/OUT RCA connections

3.5mm headphone connection

Integrated speakers

Teleconferencing interface (Analog RCA input & output)

External XLR microphone input

Recording input & output

Specs

Operating voltage: 100-240 VAC, 50/60 Hz (auto-switching)

Current consumption: MAX 0.9A (100VAC) 0.3A (240VAC)

DC supply to contribution units: ±15V Line, Telephone Coupler and Insertion

In/Outputs (Unbalanced)

Input sensitivity: -14dBV/+11dBV (nominal/maximum)

Input impedance: 33Kohm

Output level: -14dBV/+11dBV (nominal/maximum)

Output impedance: 500ohm

Recorder In/Out (Unbalanced)

Input sensitivity: -20dBV/+5dBV (nominal/maximum)

Input impedance: 47Kohm (for L & R channel)

Adjustment: -20dBV/+5dBV

Output level: +0/-30dB

Output impedance: 500ohm

External Microphone Input (Balanced)

Input sensitivity: -56dBV

Adjustment: +6dB/-6dB

Phantom Power: 12V+/-1V, 2 x 680ohm (+/-2%)

Output connection: 3.5mm stereo jack

Headphone Output

Output level: -8dBV/+2dBV

Output Impedance: 22ohm

Temperature range

Storage and transport: -4 to 131°F / -20 to 55°C

Operating temperature: 41 to 113°F / 5 to 45°C

Ambient humidity

Storage and transport: 0% – 99% RH

Operational: 20% -95% RH

Dimensions (HxWxD): 360 X 150 X 90 mm

Weight: 2 lbs 11 oz / 1215 g

FCC statement:
This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions:
(1) this device may not cause harmful interference, and
(2) this device must accept any interference received, including interference that may cause undesired operation.

FAQs

Q: What are the differences among the Enersound push to talk conference microphone system, standard wired and wireless microphones?

A: Each standard wired microphone is connected directly into one channel of an audio mixer using a cable. For example, if 10 standard wired microphones are required, you will need to run 10 cables into a 10-channel mixer and have an operator opening and closing the microphones to avoid excessive noise and feedback for having all the mics opened. If you think this is complicated with 10 microphones, imagine having 50 or more mics.

Each standard wireless microphone is comprised of a wireless microphone transmitter, and a base receiver that is connected into one channel of an audio mixer using a cable. Going back to the same example above, if 10 wireless microphones are required, you will need 10 wireless microphone systems working in 10 different interference-free frequencies, a 10-channel mixer and an operator. The more wireless microphones you need, the better quality the microphones need to be and the greater chances of interference you have. The only benefit to the above wired microphones is the elimination of some cabling but the rest of the challenges still remain and a new challenge is posed that is the availability of interference-free frequencies.

With the Enersound CS-300 push to talk conference microphone system, each microphone is connected to the next one using the attached single cable and the last microphone is connected to the control unit. The control unit has an audio output that combines all of the microphones’ signals, eliminating the need of a multi-channel mixer and an operator to control the various microphones. Consequently, there is only one cable in the system that interconnects all the microphones. This makes the set-up easier, cleaner and eliminates unnecessary cables that can cause noise, failures and visual clutter. In addition, each microphone has a button to activate/ deactivate the microphone, a lighted ring that lights up when the microphone is activated to give a visual indication that the mic is active, and a speaker to listen to the audio of the other contribution units and auxiliaries.

Q: How many push to talk microphones can I have in the Enersound CS-300 conference microphone system?

A: The CS-300 Conference and Discussion System is ideal for discussions and meetings of up to 150 people. Each CU-300 Control Unit can handle up to 50 contribution microphones and with a maximum of 3 CU-300 Control Units per system you can handle up to 150 contribution microphones.

Additional Information

CU-300 User Guide

CU-300 Brochure

SKU: CU-300

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