Summit Audio - 22BA-221 (Mic & Line Preamp)

Featuring microphone-level, line-level, and hi-Z instrument inputs, the 2BA-221 continuously variable impedance microphone preamp utilizes separate and individually controlled solid-state input controls to mix the microphone input with the hi-Z or line input into the variable vacuum tube output.

Mix them together through the 12AX7A/ECC83 vacuum tube output or seperately through individual solid-state outputs. The 2BA-221 also features a stackable input design; multiple 2BA-221's can be linked together to form a modular mixing device with individual outputs, inserts per channel, and a final vacuum tube gain stage.

Its swept highpass filter, multiple simultaneous tube and solid-state outputs, insert jack, and internal power supply make the 2BA-221 a powerful tracking and mixing tool.


Number of Channels Single
Inputs 1 x XLR Microphone
1 x 1/4" TRS phone Line
1 x 1/4" TS phone Instrument (front panel)
1 x 1/4" TRS phone "Stacking Input"
1 x 1/4" TRS phone Insert
Output 1 x XLR
1 x 1/4" TRS phone
1 x 1/4" TRS phone "Stacking Output"
Phantom Power 48V
Multi Function No
Gain Range 0dB to 70dB
Maximum Output Level Not specified by manufacturer
Frequency Response 10Hz to 50kHz, -0.5dB unweighted
Noise -98dB
Dimensions (WxDxH) 9 1/2" x 8" x 1/3/4"
Weight Not specified by manufacturer
Specialties Multiple simultaneous outputs with variable tube output gain
Packaging Info
Package Weight 5.65 lb
Box Dimensions (LxWxH) 13.9 x 9.75 x 2.05"

Customer Reviews

No reviews yet