Thermionic Culture THE FREEBIRD 3 channel equalizer User Manual
Page 11

©Thermionic Culture Ltd., May 2011
10
6 Specification
Frequency response
±0.5dB
±1dB
(all controls flat)
20Hz-80kHz
15Hz-130kHz
Input impedance
10kΩ
Output impedance
200Ω
Distortion
THD @ +4dBu 1kHz
THD @ +4dBu 100Hz
≤0.05%
≤0.1%
MOL
(1% THD)
+22dBu
Noise
100dB below MOL
Gain
-17 to +5dB
NB. Noise and distortion measurements made unweighted,
with 30kHz filter to remove any radio pickup.
Loading=10kΩ. Can be loaded with 600Ω but MOL will be
reduced and distortion increased.
The BYPASS switch completely removes the electronics
from circuit.
The gain of the unit is set to zero for a 10k
Ω load. There is a
trimmer near to the gain control for fine adjustment. This is
accessed by removing the lid.