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Specifications
System
IE 4 earphones
EK 300 IEM G2 receiver
RF characteristics
Modulation wideband FM stereo, MPX pilot tone
Frequency ranges 518–554, 572–608, 626–662, 740–776, 786–822,
830–866 MHz
Transmission/receiving frequencies 8 channel banks with up to 12 factory-preset channels each
1 channel bank with up to 12 freely selectable channels
(1,440 frequencies, tunable in steps of 25 kHz)
Switching bandwidth 36 MHz
Nominal/peak deviation ± 24 kHz/± 48 kHz
Frequency stability ≤ ± 15 ppm
AF characteristics
Noise reduction system Sennheiser HDX
AF frequency response 40–15,000 Hz
MPX pilot tone (frequency/deviation) 19 KHz/±4 kHz
S/N ratio (at 1 mV and peak deviation) ≥ 91 dB(A)
THD (at nominal deviation and 1 kHz) ≤ 0,9 %
General data
Temperature range –10 °C to +55 °C
(with SR 350 IEM G2: –10 °C to +45 °C)
Dimensions of carrying case [mm] 380 x 370 x 70
Weight of carrying case approx. 3 kg
Frequency response 40–20,000 Hz
Max. SPL 106 dB (1 kHz, 1 mW)
Impedance 16 Ω
RF characteristics
Receiver principle non diversity
Sensitivity (with HDX, peak deviation) < 2.5 μV at 52 dBA
rms S/N
Adjacent channel rejection ≥ 70 dB
Intermodulation attenuation ≥ 70 dB
Blocking ≥ 80 dB
Squelch 4 steps: OFF
LO: 5 dBμV
MID: 15 dBμV
HI: 25 dBμV
Pilot tone squelch (MPX pilot tone) can be switched off
AF characteristics
Headphone output 3.5 mm jack socket
AF output voltage (peak deviation, 1 kHz
AF
) PHONES 2 x ≥ 100 mW at 32 Ω
Overall device
Power supply 2 AA size batteries, 1.5 V
Nominal voltage 2.4 V
Max. power consumption at nominal voltage approx. 190 mA (2 x 30 mW)
Power consumption with switched-off receiver ≤ 250 μA
Operating time (with batteries) 6–10 hrs (depending on volume level)
Operating time (with BA 2015 accupack) 6–10 hrs (depending on volume level)
Dimensions [mm] 82 x 64 x 24
Weight (incl. batteries) approx. 170 g
ew300_350_IEM_INT.book Seite 38 Freitag, 7. März 2008 8:55 08