User guide

Model 2BA-221 Microphone Preamplifier 19
Microphone Impedance Chart
Blue Blueberry 150 N/DYM N/D767 300 Evolution E609 350
Blue Mouse 150 N/DYM N/D468 150 Evolution E825 350
Blue Cactus 150 N/DYM N/D478 300 Evolution E835 350
Blue Kiwi 50 N/DYM N/D868 150 Evolution E845 350
Beyerdynamic MC740 150 RE RE27ND 150 Evolution E855 350
Beyerdynamic MC834 180 RE RE510 150 Evolution E865 200
Beyerdynamic MCE90 190 RE RE16 150
Shure
SM57 150
Beyerdynamic MCe91 190 RE RE20 150 Shure SM58 150
Beyerdynamic MCE93 190 RE RE200 200 Shure Beta 58A 150
Beyerdynamic MCE94 190 RE RE1000 200 Shure KSM27 150
Beyerdynamic Opus81 190
Neumann
M147 50 Shure KSM32 150
DPA
4003 75 Neumann M149 50 Shure KSM44 150
DPA 4004 75 Neumann TLM103 50 Shure Beta B52 150
DPA 4006 75 Neumann U47 Shure Beta B56 150
DPA 4007 75 Neumann U87 200 Shure Beta 57A 150
DPA 4011 220 Neumann U89 150 Shure Beta 58A 150
DPA 4012 75 Neumann KMS105 20 Shure Beta 87A 150
DPA 4015 220 Neumann KM183 20
Stedman
C15 250
DPA 4016 220 Neumann KM184 20 Stedman N90 250
DPA 4041SP 200 Neumann TLM170 20 Stedman SC3 250
Earthworks
M30 600 Neumann TLM193 20 Stedman TR1 150
Earthworks M550 600
Röde
NT1 40 Stedman LD23 150
Earthworks QTC1 600 Röde NT1000 100 Stedman LD50 150
Earthworks SR68 600 Röde NT2 40 Stedman 1100B 150
Earthworks SR69 600 Röde NT3 200 Studio Project C3 200
Earthworks SR77 600 Röde NT4 200 Studio Project T3 200
Earthworks SR78 600 Röde NTK 200 Studio Project B1 200
Earthworks SRO 600 Röde Classic II 200 Studio Project B3 200
Earthworks TC30K 600
Royer
R121 300 Studio Project C1 200
Electrovoice
Royer R122 300 Studio Project TB1 250
Cobalt Co4 600 Royer SF12 300
Cobalt Co5 600 Royer SF1 300
Cobalt Co7 600
Sennheiser
MD421 200
Cobalt Co9 600 Evolution E602 250
Cobalt Co11 250 Evolution E602 350
N/DYM N/D167 600 Evolution E604 250
N/DYM N/D267 300 Evolution E608 350
Microphone Impedance Chart
Brand Model Ω Brand Model Ω Brand Model Ω