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The level dependence is that same thing that happens with all vintage analog gear. This is not about
making a color by adding a little LF boost or a little HF cut; it is changes in amplifier linearity.
The microphone input has 3 input impedance choices which are 2.2K ohms for normal microphone
operation, 300 ohm and a Hi-z choice for different microphone sounds. The instrument input has an
impedance of 1.2 Meg ohms which is ideal for guitars.
The gain over all is adjustable in 1db steps from 0 to 66db on the mic input and 0 to 30 db on the
instrument input. Gain is displayed on a 2 digit led display.
The low cut filter which is a 3 pole, 18db per octave has 8 frequencies 148 Hz, 130 Hz, 117 Hz, 100
Hz, 81 Hz, 63 Hz, 48 Hz, 33 Hz, and off.
One thing to note, is on power up, a number is displayed in the left most gain digit. This is the
firmware version number.
0VU on the meter is +4dbu, tha top of the meter shows 20 db above +4. A maximum lever lof +24dbu
clipping is somewhere b24 and +25 dbu on the output. The maximum input is +24 balanced
and about +17dbu unbalanced.
Содержание EUROPA I
Страница 1: ...2011 Dave Hill Designs version 20110201 PREAMPLIFIER QUICK START GUIDE EUROPA I...
Страница 7: ...EVEN HARMONIC DISTORTION WITH LEVEL...
Страница 8: ...ODD HARMONIC DISTORTION WITH LEVEL...
Страница 9: ...LOW CUT FILTER...