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Summary of Contents for Fredenstein F676
- Page 1 F676 Microphone Preamplifier Operating Manual...
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Page 2: Installation
The final result is a preamp with a very pleasant sonic footprint, lush smooth highs without being harsh and very detailed mids 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 manufactured by several German companies. - Page 3 After turning on the MAINS SWITCH 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 still powered-off. Fredenstein F676 Manual V1.1 July 18, 2014 Page 2...
- Page 4 To turn the F676 on, please push the rotary control. The F676 will power up and go through a tube calibration cycle. During this cycle you will see the anode currents in both halves of the push-pull Class A amplifier.
- Page 5 Amplifier Gain: The gain of the F676 can be adjusted in 1 dB steps in the range of 0 db and +76 dB. To adjust the gain move the cursor with the rotary control to the gain field and then press the rotary control.
- Page 6 The output stage can be changed from normal push-pull to single-ended mode. This will change the sound characteristics. Values in between can also be achieved. Please note that the output level in single-ended mode is 6 dB lower. Fredenstein F676 Manual V1.1 July 18, 2014 Page 5...
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Page 7: Utilities Sub Menu
Utilities Sub Menu: Store Configurations: The F676 allows to store 99 complete setups. Please select the storage location by turning the rotary control. If the location was previously used, it is indicated, but you can overwrite Recall Configuration: You can recall the store configurations. Only previously stored configurations will be displayed and allowed to recall. -
Page 8: Specifications
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. - 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 www.fredenstein.com...
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