Fredenstein F603A - Manual (Page 2)

Fredenstein F603A Equalizer
The F603A is a high performance High-Q four band equalizer for tracking and mixing (Q = 2). The
F603A features passive LC (Inductor / Capacitor) filters combined with a very short signal pass.
The low and high frequency filters are shelving types, while the mid frequencies are band pass
filters. Each shelving filter has four different frequencies while the band pass filters offer six. The
active filter range is indicated by LEDs. To facilitate sound comparisons, a true “hard” bypass is
available. The gain range for each filter is +- 16 dB. All filters are switched by relays to guaranty
the highest possible sound quality. The F603A exhibits unrivaled silkiness , but at the same time an
extremely detailed sound stage. The high power output stage with an impedance of less than 20
Ohms and a driving capability of up to +- 200mA ensures no loss of performance with even the
most demanding complex loads.
As all Fredenstein products, the F603 is designed by a German-American team and manufactured in
Taiwan.
Overview:
Clip Indicator
Threshold + 24 dBu
Rotary Controls:
HI : High Frequency Gain
HI MID : High Mid Gain
LOW MID : Low Mid Gain
LOW : Low Frequency Gain
Switches:
HI : up/down to select High Frequency
shelving filter band
HI MID : up/down to select Hi Mid band pass
filter frequency
LOW Mid : up/down to select Low Mid band pass
filter frequency
LOW : up/down to select Low Frequency
shelving filter band
BYPASS : Hard Bypass function when lit
Fredenstein F603A Manual V1.3 July 18, 2014 Page 1