F676
Microphone
Preamplifier
Operating Manual
Page 1: ...F676 Microphone Preamplifier Operating Manual...
Page 2: ...and lows The F676 will make a difference in any studio The name F676 is a homage on the famous V76 microphone preamplifier designed by the German Broadcast System NWDR in the early 1950 s and manufact...
Page 3: ...on the rear panel the unit performs a self test and after successful completion you will see the following screen At this point the unit is in stand by mode and the audio circuitry and the tubes are...
Page 4: ...ng this cycle you will see the anode currents in both halves of the push pull Class A amplifier After the currents settled the unit is fully operational and the user will be forwarded to the main menu...
Page 5: ...ones requiring such a power source Please be sure the connected microphone is made for P48 before turning it on Most FET based condenser microphones use P48 while almost all tube based condenser dynam...
Page 6: ...quencies above 30Hz are amplified 60Hz all frequencies above 60Hz are amplified Polarity Due to placement of microphones sometimes the polarity phase needs to be changed An example would be a bottom m...
Page 7: ...elect the storage location by turning the rotary control If the location was previously used it is indicated but you can overwrite it Recall Configuration You can recall the store configurations Only...
Page 8: ...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...
Page 9: ...Contact Info Fredenstein Professional Audio by Orion Communication 7F 1 No 582 Ruei Guang Rd Neihu District Taipei 114 Taiwan Phone 886 2 2657 2618 Email info fredenstein com Web www fredenstein com...
