Thermionic Culture THE FREEBIRD 3 channel equalizer User Manual

Page 11

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©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.

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