EC 4.7
The Electrocompaniet EC 4.7 is a high resolution, high performance, DC coupled and fully balanced, remote controlled preamplifier.
EC 4.7 has six single ended inputs, where one is fully balanced.
One balanced and one single ended line output, and one fixed single ended output to be used as record.
The remote controlled motorized volume is developed to not influence or degrade the sonic performance of the EC 4.7.
Volume control and input sources can easily be navigated from the remote controller or via the navigators on the front panel.
The navigator's window displays the selected source, and the volume position in analogy shown by a blue lit.
The EC 4.7 features Electrocompaniets unique FTT technology, which is capable of deliver twice the current as conventional power supply designs.
This combination with a Toroid transformer and a reservoir of capacitance far beyond necessary will give you more than adequate control of your system.
Contains only high quality discrete components.
It is a perfect combination with our own products or other manufacturers High-end equipment.
Technical specifications
| All measurements are made at 120V / 240V //50Hz / 60Hz | ||
| Clipping point of the preamplifier is set to a level where total harmonic distortion (THD) is 0.2% | ||
| Preamplifier section | ||
| Single ended operation (gain) | 0 dB | |
| Balanced operation (gain) | 6 dB | |
| Input impedance single (fixed) | 330 kohm | |
| Input impedance balanced (fixed) | 165 kohm | |
| THD single ended (1 V in, 1 V out, 1 kHz) | < 0.001 % | |
| Equivalent input noise | < 3 µV | |
| THD balanced (1 V in, 1 V out, 1 kHz) | < 0.0005 % | |
| Max. input single | > 10 V RMS | |
| Max. input balanced | > 20 V RMS | |
| Channel separation (1 V output, 1 kHz) | > 90 dB | |
| Attenuation (minimum volume) | - 75 dB | |
| Output impedance single | 100 W (fixed) | |
| Output impedance balanced | 50 W (fixed) | |
| Max. output Single ended | 8 V RMS | |
| Max output Balanced | 16 V RMS | |
| Output noise (400 Hz - 30 kHz) | Single
ended : 5 µV Balanced : 10 µV |
|
| Signal to noise (400 Hz - 30 kHz) | > 100 dB | |
| Frequency response (DC - 65 kHz) | - 0.4 dB | |
| The EC 4.7 is DC coupled from input to output. | ||
| Power consumption (no load or signal) | 15 W | |
| Dimensions | ||
| Width | 483 mm / 19 inches | |
| Depth | 410 mm / 16.1 inches | |
| Height | 115 mm / 4.5 inches | |
| Weight | 8 kg. / 17.6 lbs. | |
HiFi & Records, Germany, Febryary 2003
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Audio Phile, Germany, 2002
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Haute Fidelite, France, Mai 2002
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Hifi News, UK, 06/2001
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Avdio Video, South Africa, February 2001
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Lyd&Bilde, Norway, Mars 2000
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Avdio Video, South Africa, October 2000
"Recommended product", Lyd&Bilde, Norway
