Variable microphone input impedance
Ranges from 100 to 10K and, along with a variable high-pass filter and 3 variable, independent gain stages, allows flexible operation.
Internal high-voltage power supply
Promotes optimal performance.
Microphone-level, line-level and hi-Z instrument inputs
Plus a 12AX7A/ECC83 vacuum tube output and XLR and 1/4" outputs and inputs for versatile connectivity.
Stackable input design
Allows you to use the preamplifier in conjunction with other 2BA-221 preamplifiers (not included) to form a modular mixing device with individual outputs, inserts per channel and a final vacuum tube gain stage.