Bellari PA 555 Vacuum Tube Preamplifier
Description
Description
Bellari PA 555 Vacuum Tube Preamplifier
The PA555 uses a 12AX7 tube running at 150 volts. The input signal is connected directly to the grid of the tube and all of the gain of the PA555 is from the 12AX7 tube. The PA555 has a no feedback circuit or integrated circuits in the audio path, it is all analog.
Technical Specifications
Input Impedance
10K ohms
Max Output Gain
11.1 dB
THD
0.1%
S/N Ratio
103 db, unweighted
Frequency Response
5 Hz - 198 KHz +/- 3 db
Crosstalk
-75 dB
Output impedance
100 Ohms
Tube
12ax7
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