In addition the Utilities Menu displays the output tube currents and the internal temperature.
The F676 deploys an ultra low noise magnetic levitation fan inside that has a very long life span.
But in case of circuit or fan failures, if the internal temperature reaches 85C (185F) the F676 will
automatically shut down.
Specifications:
Frequency Response:
20Hz – 20Khz +- 0.5dB
Distortion:
< 0.1% (Push-Pull Mode no DC Bias)
Input Noise:
-128dB at +30 dB gain
Gain Range:
0 dB to +76 dB without Pad
+20 db to + 56db with Pad
Input Impedance:
200 or 1000 Ohm user selectable,
470 KOhms for the DI input
Maximum Output Voltage:
+30 dBu
Mains Voltage :
110V to 120V in the 115V range
or 220V to 240V in the 230V range
(user selectable)
Power Consumption:
< 50W
Dimension (LxHxD): 242mm x 95mm x 270mm
Fredenstein F676 Manual V1.1 July 18, 2014 Page 7