The EK 3253 is a stereo
bodypack receiver designed
for professional wireless
monitoring applications.
The compact, lightweight
but very rugged receiver
allows the user complete
freedom of movement. The
EK 3253 has an integrated
display and offers great
ease of use. 16 of its
32 receiving frequencies are
tunable in steps of 5 kHz.
A switching bandwidth of
36 MHz and the effi cient
Sennheiser HDX noise
reduction system ensure
reliable, high-quality signal
reception.
EK 3253
Product
News
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Easy to use
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Rugged metal housing
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FOCUS function for individual audio mix
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Pilot tone squelch control (during stereo operation)
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36 MHz switching bandwidth
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Receiving frequencies tunable in steps of 5 kHz
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Scan function for scanning for free channels
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Delivery includes: 1 EK 3253 bodypack receiver,
2 batteries,
IE 4 earphones,
instructions for use
Technical Data
Specifi cations EK 3253
Frequency ranges 518 – 554, 626 – 662, 740 – 776, 786 – 822, 830 – 866 MHz
Receiving frequencies 16 factory-preset channels, 16 freely selectable channels
(tunable in steps of 5 kHz)
Switching bandwidth 36 MHz
Modulation FM stereo working on the pilot tone principle
Nominal/peak deviation ± 24 kHz/± 48 kHz
Noise reduction system Sennheiser HDX
AF frequency response 40 – 15,000 Hz
Signal-to-noise ratio > 90 dB(A)
Sensitivity (HDX, peak deviation) typ. 1,5 µV at 52 dBA
Squelch 4 steps: 0 – 25 dBµV
THD (at 1 kHz and nominal deviation) ⱕ 0,9 %
Headphone output 3.5 mm jack socket
AF output power (peak deviation, 1 kHz AF) PHONES 2 x 100 mW at 32 ⍀
Power supply 2 AA size batteries, 1.5 V
Operating time
with batteries 6 – 10 h (depending on volume)
with BA 2015 accupack 6 – 10 h (depending on volume)
Dimensions (mm) 82 x 64 x 24
Weight (incl. batteries) approx. 200 g
Type approval IC 2099A-SREK3K
ETSI EN 300454-1/-2
(refers to overall link with SR 3254)
rms
S/N
rms
Recommended Accessories
Description Product Cat. No.
Stereo transmitter SR 3254 500659
Twin stereo transmitter SR 3256 500507
Earphones IE4 500432
Accupack BA 2015 009950
Charger for BA 2015 accupack L 2015 009928
Ear sleeves, large, 10 pieces 512814
Ear sleeves, medium, 10 pieces 512815
Ear sleeves, small, 10 pieces 512816
Variants
EK 3253 A Cat. No. 500522
Frequency range 518 – 554 MHz
EK 3253 B Cat. No. 500523
Frequency range 626 – 662 MHz
EK 3253 C Cat. No. 500524
Frequency range 740 – 776 MHz
EK 3253 D Cat. No. 500525
Frequency range 786 – 822 MHz
EK 3253 E Cat. No. 500 526
Frequency range 830 – 866 MHz
513594 01/06 Printed in Ge rmany Sennheis er is a registered trademark o f Sennheiser e lectronic GmbH & Co.KG. www.sennheiser.com