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evolution wireless 

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550 Series

RF Wireless Systems |

 evolution wireless 

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Optional Accessories

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 A 1031-U passive omni-directional antenna 

Cat. No. 004645

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 A 2003-UHF passive directional antenna 

Cat. No. 003658

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  AB 2 antenna booster

AB 2-A: 518–554 MHz 

Cat. No. 009817

AB 2-B: 626–662 MHz 

Cat. No. 009818

AB 2-C: 740–776 MHz 

Cat. No. 009819

AB 2-D: 786–822 MHz 

Cat. No. 009820

AB 2-E: 830–866 MHz 

Cat. No. 009821

General Description

The  professional  ew  550 

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  series  has  been  designed  to  meet  the  high  demands 

of  professional  sound  equipment  providers  and  musicians  on  tour.  At  the  heart  of 
the series is the EM 550 

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 true diversity twin receiver which can be combined with 

any 500 series transmitter. The EM 550 

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 has nine ferquency banks with up to 20 

presets each for direct channel selection. It has all the features of the EM 500 

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 and 

is  additionally  fitted  with  an  integrated  antenna  splitter,  which  allows  several 
receivers  to  be  cascaded  without  the  need  for  additional  equipment.  Other  fea-
tures  for  the  true  professionals  include  two  transformer-balanced  audio  outputs 
and an integrated power supply unit.

Technische Daten

Receiver

Frequency ranges  ............ 518–554, 626–662, 740–776, 

786–822, 830–866 MHz

Transmission/receiving frequencies.........................1,440
Compatible frequencies per frequency bank .... up to 20
Compander ........................................................................HDX
Signal-to-noise ratio..................................................115 dB
AF frequency response .................................40–18,000 Hz
Pilot tone squelch ............................... can be switched off
Scan function ............................scans all frequency banks
Adjacent channel rejection ......................................> 70 dB
Intermodulation attenuation .................................. > 70 dB
Sensitivity (with HDX, at peak 
deviation, 52 dBA

rms

 S/N) ...................................typ. 1.5 µV

EQ presets .............................................Flat (40–18,000 Hz)

Low Cut (–3 dB @ 200 Hz)

Hi Boost (+6 dB @ 10 kHz)

Low Cut & Hi Boost 

Max. AF output voltage............................XLR, transformer 

balanced: –22 to +18 dBu 

(adjustable in steps of 2 dB) 

Dimensions ............................................436 x 215 x 43 mm 
Weight ........................................................... approx. 3,500 g

Cat. No. 021650

Product Variants

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  EM 550 

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-A-US: Frequency range 518–554 MHz/

Power supply unit US 

Cat. No. 009788

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  EM 550 

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-A-UK: Frequency range 518–554 MHz/

Power supply unit UK 

Cat. No. 009789

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  EM 550 

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-B-EU: Frequency range 626–662 MHz/

Power supply unit EU 

Cat. No. 009790

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  EM 550 

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-B-US: Frequency range 626–662 MHz/

Power supply unit US 

Cat. No. 009791

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EM 550 

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-B-UK: Frequency range 626–662 MHz/

Power supply unit UKS 

Cat. No. 009792

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  EM 550 

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-C-EU: Frequency range 740–776 MHz/

Power supply unit EU 

Cat. No. 009793

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  EM 550 

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-C-US: Frequency range 740–776 MHz/

Power supply unit US 

Cat. No. 009794

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  EM 550 

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-C-UK: Frequency range 740–776 MHz/

Power supply unit UK 

Cat. No. 009795

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  EM 550 

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-D-EU: Frequency range 786–822 MHz/

Power supply unit EU 

Cat. No. 009796

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  EM 550 

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-D-US: Frequency range 786–822 MHz/

Power supply unit US 

Cat. No. 009797

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  EM 550 

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-D-UK: Frequency range 786–822 MHz/

Power supply unit UK 

Cat. No. 009798

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  EM 550 

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-E-EU: Frequency range 830–866 MHz/

Power supply unit EU 

Cat. No. 009799

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  EM 550 

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-E-US: Frequency range 830–866 MHz/

Power supply unit US 

Cat. No. 009800

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  EM 550 

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-E-UK: Frequency range 830–866 MHz/

Power supply unit UK 

Cat. No. 009801

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