Thank you for choosing Sennheiser | Sennheiser EK 3053-U guide

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We have designed this product to give you reliable operation over many years.

Please take a few moments to read these instructions carefully, as we want you to enjoy your new Sennheiser product quickly and to the full.

Chapter	Contents	Page
1	Brief description / EK 3053-U stereo receiver	17
2	Suitable transmitters	17
3	Noise reduction with HiDyn stage	18
4	Connections and operating elements	19
5	Battery or accupack operation	20
6	Inserting / Changing the battery	20
7	Connecting the antenna	20
8	Connecting the headphones	21
9	Setting the receiving frequency	21
10	Switching the receiver on	21
11	Adjusting the volume	22
12	Stereo / FOCUS selection	22
13	Adjusting the balance	22
14	Switching the limiter on	22
15	Adjusting the squelch	23
16	RS signal and battery status indication	23
17	Attachment of the receiver	23
18	Attention! High volume!	24
19	Accessories	25
20	Technical data	25

1 Brief description

With this wireless monitoring system for stage and broadcast use, the listener can directly monitor the received sound signals without troublesome cables or monitor speakers being required. In addition, the monitoring system can also be used for any application where talk- back signals are to be transmitted.

The system has superb audio quality with an increased signal-to-noise ratio and dynamic range due to the inclusion of Sennheiser’s HiDyn stage noise reduction system.

EK 3053-U stereo receiver

The EK 3053-U is a miniature stereo receiver designed for receiving signals transmitted by the SR 3054-U and SR 3056-U transmitters. Its small size allows complete freedom of movement. With in-ear headphones (see chapter “Accessories”) connected to the receiver, the user can directly listen to the stereo audio signal received. 16 switchable UHF receiving frequencies ensure high flexibility and optimum reception.

Special features

Small and rugged stereo receiver supplied with belt clip

16 switchable receiving frequencies, PLL-controlled

HiDyn stage noise reduction system

Easy to use

LEDs for RF signal and ‘‘operation“ / ‘‘Low Batt” indication

FOCUS function for individual audio mix

2 Suitable transmitters: SR 3054-U / SR 3056-U

The SR 3054-U is a stereo transmitter with 16 switchable UHF transmission frequencies, the SR 3056-U consists of two complete ste- reo transmitters with 16 switchable UHF transmission frequencies each. Their ease of use and excellent mechanical stability make these transmitters an ideal choice for use in large shows and for touring artists.

Stereo/mono selector switch

16 switchable transmission frequencies per transmitter, PLL -controlled

Switching bandwidth max. 24 MHz per transmitter (3 TV channels)

HiDyn stage noise reduction system

LC display for frequency, RF output power, and deviation

19” 1 U housing with built-in mains power supply unit and rack mounts

Suitable for multi-channel applications