Sennheiser
EW 100 G2 wireless

RightMark Audio Analyzer test

by John Beale Feb. 7 2006

Testing chain: CD->SennG2->UB802->Echo Mia
Sampling mode: 16-bit, 44 kHz

DUT: Sennheiser EW 100 G2 wireless Tx/Rx system set to 656.075 MHz

Transmitter: SK 100 bodypack
Receiver: EK 100 bodypack (designed for camera-mount)

Test signal: CD (44.1kHz, 16 bit) with RMAA v5.4 CAL and TEST signal
Attenuator: -17 dB (to reduce CD line out level for Tx mic input)

CD DIRECT: CD line out -> Attn. -> UB802 mixer ->Echo Mia
SENN G2: CD line out -> Attn. -> SK100 TX -> EK100 RX -> UB802 mixer -> Echo Mia

Note: I wouldn't take this test too seriously since my reference signal path wasn't very clean. In fact, with the Senn G2 system in the signal path, the noise level is actually lower! Maybe the Senn mic preamp is better than my mixer's. It does demonstrate that the Sennheiser G2 wireless system is capable of good audio performance, which is confirmed by a listening test. The chart doesn't show it clearly, but I measured the -3 dB bandwidth for the G2 system to be 90 Hz up to 18.3 kHz. -J.Beale 2/7/2006

Summary

Test	CD direct	Senn G2 100-EW
Frequency response (from 40 Hz to 15 kHz), dB:	+0.36, -2.04	+0.43, -25.26
Noise level, dB (A):	-68.1	-69.1
Dynamic range, dB (A):	67.8	68.4
THD, %:	0.043	0.069
IMD, %:	0.138	0.508