Vintage Style electronics. No integrated circuits in the signal path.
UK-made Carnhill in- and output transformer. The output is balanced and fully floating and can drive a 600 ohm load up to level of about 28 dBu.
Maximum gain in MIC mode is 80 dB, enough to handle passive ribbon mics with quiet sound sources.
The total gain range goes from -10 to +80 dB. The 20 to 70 dB range (in MIC mode) is handled by a turn switch and a toggle switch selects an additional 5 or 10 dB gain.
Switchable impedance on the mic input, 1200 or 300 ohms, will change the tone of many mics.
The input can be configured to accept line level signals by another switch, the level is then lowered by about 30 dB and the input impedance increased to about 10 kohm.
A selectable two-position 6 dB / octave highpass filter with fres of about 45 or 180 Hz.
A flexible front panel instrument input for electric guitar or bass that can be switched between a high impedance active or a mid-Z passive mode. These two DI-options makes it possible to get different tones from instruments. Mains connected sound modules or other signal sources should be connected to the MIC/LINE input of the 500-rack, unless they have a fully floating, transformer balanced output stage.
