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Manufacturer's Description from Fredenstein
The Fredenstein F610 Universal Entzerrer UE-1 is a digital controlled stereo analog quad band equalizer and 30 band spectrum analyzer in a double wide 500 series cassette.
For the first time in a 500 series module, we were able to implement a high resolution 3.5” LCD color display including a capacitive touch controller, thus welcoming the 500 Series to the 21st century.
The four filters are all identical and each can be tuned from 20 Hz to 20 KHz. The encoder rotary frequency knob allows access to about 190 different frequencies per filter, while the USB interface allows for 1 Hz frequency resolution. The maximum filter gain is +/- 16 dB. In case more gain is needed, additional filters can be set at the same frequency for a ridiculous up to 64 dB boost or cut. The Q-factor of each filter can be varied from 0.4 to 7.9. The gain can be adjusted from -16 dB to +16 dB in 0.25 dB steps, clearly fulfilling the demands of modern sophisticated mastering. The Filter 1 characteristic can be changed from band-pass to low-shelf and Filter 4 to high-shelf.
In addition, a variable 2nd order low-cut filter with a range from 20 Hz to 975 Hz is provided as well as a “Color” function giving a tube-like sound. The hard bypass allows for quick evaluation of the eq'ed results.
The 30-band spectrum analyzer features a 60 dB dynamic range with select-able sensitivity from +6 dBu to + 24 dBu in 6 dB steps. The choice to feed either the input or the output signal to the analyzer adds to the versatility of the F610.
Up to 99 complete settings can be stored in the internal non-volatile memory and a Micro-USB interface provides complete control from a connected host computer via RS232 over USB.
The F610 UE-1 name is an homage to the classic K&H UE-100. “Entzerrer” is the German technical term for equalizer.
About Manufacturer
Think about what is sonically missing in today's audio equipment and how you could achieve better results in recording and mastering? Now, many go back to well proven classic pieces of audio gear to fight the shortcomings of digital recording. Could that be the ultimate solution? Did the improvements in technology during the last 50 years really don't apply to recording? Using technologies from vacuum tubes to Digital Signal Processors, often in the same product, Fredenstein products combine the strength of each technology and avoiding their weaknesses. In addition we strongly believe in Zero-Negative-Feedback, negative feedback is a technique to make amplifiers more linear, but at the same time making them sounding harsh. This is one of the reasons modern equipment sounds so similar. Omitting negative feedback and using an internally and externally balanced designs which are very linear by design will yield a natural sound on a different level, warm, not dull or muffled, instead with a rich silky top-end and an impulse response will simply blow you away. Don't get us wrong, we are not talking about 「esoteric designs」, we believe very strongly in a scientific engineering approach.
We also provide pieces of long neglected equipment like precision analog meters. Even if you are working mostly inside the 「box」, metering your analog signal before it hits your converters is still very important and a great foundation for good recording. Fredenstein's state-of-the-art audio technology will help you throughout your chain to achieve truly outstanding results.
In addition, Fredenstein believes recording engineers deserve to have a more user friendly, more convenient and efficient pieces of equipment making the studio life easier and generate a more comfortable working environment. By minimizing the number of buttons and switches without sacrificing the functionality we deploy a clean user interface allowing you to get instantaneously familiar with the products.
Fredenstein Professional Audio Products are designed for audio professional in recording and broadcast studios as well as independent engineers and producers in their own facilities.
Fredenstein is focused to make a difference in Professional Audio. You can expect superior sound and high-end built quality from each of our products
Specifications
Frequency Response:
10 Hz – 30,000 Hz, - 0.5 dB
6 Hz – 60,000 Hz, - 3 dB
Distortion (THD&N): < 0.004 % at +24 dBu output level
Signal to Noise (S/N): -106 dB at +26 dB output level
Crosstalk at 10 kHz: < -102 dB
Max. Input Level: + 26 dBu
Max. Output Level: + 27 dBu
Input Impedance: 20 kOhms (electronically balanced)
Output Impedance: 44 Ohms (electronically balanced)
Power Consumption:
+16V Rail : < 400 mA
-16V Rail : < 350 mA
Downloads
Action
Name
Description
F610 Manual
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