Sennheiser EK 3052 Product Sheet

General Features j Wireless monitoring system for stage and broadcast use j Stereo and mono transmission j “HiDyn stage” noise reduction system j Easy to use j Suitable for multi-channel applications j Can also be used as a talkback system EK 3052-U j Small and rugged stereo receiver j 16 switchable receiving frequencies, PLL-controlled j LED for operation and “Low Batt” indication j Volume control can be covered to prevent accidental adjustment j Delivery includes: 1 EK 3052-U stereo receiver with antenna, 2 B 2013 battery boxes, 1 attachment clip, 1 screwdriver General Description The EK 3052-U is a miniature stereo receiver designed for receiving signals trans- mitted by the SR 3054-U and SR 3056-U transmitters. Its small size allows com- plete freedom of movement. 16 switchable UHF receiving frequencies ensure high flexiblil ity and optimum reception. Technical Data Receiving frequencies .......................................................16 Frequency range...........................................450–960 MHz Switching bandwidth.............................................. 24 MHz Modulation.........................................wideband FM, stereo Nominal/peak deviation ................± 40 kHz / ± 56 kHz RF squelch........................................ 0–100 µV, adjustable Sensitivity......................................................≤ 3 µV (mono) ≤ 15 µV (stereo) Noise reduction system .............................“HiDyn stage” AF frequency response............................... 45–15,000 Hz Signal-to-noise ratio ....................................typ. 87 dB(A) THD (1 kHz) ................................................................≤ 0.3 % Stereo channel separation..................................... ≥ 45 dB AF output power..............................2 x 50 mW (at 16 Ω), min. load 2 x 8 Ω Power supply.......................... 2 x 1.5 V AA size batteries or BA 2013 accupack Operating time - with alkaline battery .................................approx. 8 hrs - with accupack..........................approx. 4 hrs (BA 2013) Dimensions................................................95 x 57 x 17 mm Weight incl. battery ....................................approx. 130 g In compliance with.................ETS 300 422, ETS 300 455 Cat. No. 004437

j B 2013 battery box Cat. No. 003437 j BA 2013 accu pack Cat. No. 003436 j L 2013 charger Cat. No. 003324 j NT 2013 plug-in mains unit for L 2013 NT 2013 european version Cat. No. 003433 NT 2013-120 USA version Cat. No. 003434 NT 2013-UK UK version Cat. No. 003435 57 mm 95 mm 17 mm EK 3052-U dimensions EK 3052-U/EK 3053-U RF Wireless Systems | 3000 Series Wireless Monitoring System 108 mm 23 mm 65 mm EK 3053-U dimensions

RF Wireless Systems | 3000 Series Wireless Monitoring System EK 3052-U and EK 3053-U receivers The transmitters of the system are optimally matched by the EK 3052-U and EK 3053-U stereo pocket receivers. 16 switchable UHF receiving frequencies within a switching bandwidth of 24 MHz max. ensure high flexibility and optimum reception. Both receivers can be used in multi-channel systems. The EK 3052-U can be powered by either the B 2013 battery box (supplied) or the BA 2013 accupack. The B 2013 battery box takes two 1.5 V AA size cells. The BA 2013 accupack is charged from its associated L 2013 charger. During the charging process, the BA 2013 accupack can remain attached to the receiver. For powering the EK 3053-U, you can either use a 9 V PP3 battery (IEC 6 LR 61) or a rechargeable 9 V accupack. The headphone output on the receivers is designed as a 3.5 mm stereo jack socket. If you use the receivers as part of the monitoring system, please connect earphones. If the receivers are used for other applications, you can also connect any Sennheiser stereo headphones. To switch the EK 3052-U on, set the on/off switch on the receiver to “ON”. The EK 3053-U has a volume control with an integral on/off switch. (The receiver is switched off by turning the volume control fully anti-clockwise until it clicks). Besides the volumes control, both receivers also feature a balance control and a squelch control. A switchable limiter in the receivers prevents peak volume levels that might cause hearing damage. The EK 3053-U additionally features a stereo/FOCUS selector switch. During stereo operation, the left-right signals are available as usual (transmitter in stereo mode). During FOCUS operation, the left-right signals are mixed and are available as a mono signal in both headphone channels (transmitter in stereo mode). Please note: In FOCUS mode, the balance control serves to adjust the relative levels of the two separate channels in the mixed mono signal. (For example: Transmit vocals on the left and backing music on the right. In FOCUS mode, you listen to a mono signal with complete personal control of the balance between vocals and backing). Both receivers have an LED for operation and battery status indication. A flashing LED indicates that the battery is going flat. An additional LED on the EK 3053-U indi- cates that an RF signal is being received. With the supplied clip, the receivers can be attached to the belt. 1 Cover plate 2 Squelch control 3 Volume control 4 Balance control 5 Channel selector switch 6 On/off switch 7 B 2013 battery box 8 Antenna socket (2.5 mm mono jack) 9 Headphone socket (3.5 mm stereo jack) 10 Operation and “Low Batt” indicator 11 Limiter switch (covered by volume control) 1 2 3 4 5 6 11 10 9 8 7 EK 3052-U operating controls EK 3053-U operating controls 1 Special co-ax antenna socket 2 Headphone socket (3.5 mm stereo jack) 3 On/off/volume control 4 Balance control 5 Stereo/FOCUS selector switch 6 Limiter switch 7 Squelch control 8 Channel selector switch 9 Cover plate 10 Operation and “Low Batt” indicator 11 RF signal indicator (indicates signal is above the squelch threshold) 1 2 3 4 5 6 11 9 10 8 7