Fredenstein Artistic Microphone Preamplifier Plus
Color Control:
Controls the amount of color added to the signal. When active the yellow LED next to the Color
knob is lit.
Gain Control:
Microphone Preamplifier Gain Control, m20 dB, m65 dB
POL – Polarity Control:
Pushing the POL switch selects the polarity, when lit (blue), the output polarity is reversed.
Otherwise the true, non-reversed, polarity is selected (normal operation).
PAD – Input Attenuator:
Setting the PAD switch (orange light) activates a 20dB attenuator at the input allowing line level
signals to pass through the preamplifier.
Low Z – Low Inout Impedance:
When lit (green), the input impedance changes from 1500 Ohms to 300 Ohms. Some dynamic- and
ribbon-microphones only work linear on a low input impedance.
P48 Phantom Power:
Most FET condenser microphones as well as some other microphones with built-in amplifiers
r48V Phantom Power. Setting the P48 switch (red light) e48V through the balanced
microphone line. Please check your microphone documentation if you are not 100% sure. Enabling
P48 on microphones not designed for P48 might cause severe damage to the microphone. The DI
input is not supplied with Phantom Power.
DI – Direct Input:
The most common use for the DI input is to connect instruments like guitars directly to the Artistic
MicPre Plus. The input impedance is greater than 2M Ohms to insure compatibility with most
instrument pickups. After inserting a balanced (Tip-Ring-Sleeve) or an unbalanced (Tip-Sleeve)
plug, the balanced microphone input through the box or rack is automatically disabled.
Technical Data:
Frequency Response :
20 Hz – 20,000 Hz, +/- 1 dB
Distortion
:
< 0.02% at +4 dBu output level (Color off)
Input Noise
:
< -127 dB
Input Impedance
:
> 1500 Ohms normal or 300 Ohms Low-Z on
DI Impedance
:
> 2 MOhms
Max. Input Level
:
+ 24 dBu, Pad activated
Max Input Level DI :
+ 18 dBu balanced or unbalanced
Output Impedance
:
600 Ohms
Max. Output Level
:
+ 26 dBu
Input Attenuator
: - 20 dB (switchable Pad)
Fredenstein Artistic MicPre Plus Manual V1.0 DEC 17, 2018 Page 3
