01Authentic 5E3 circuit emulation with 12AX7, 12AY7, 6V6GT, and 5Y3GT tube modeling
02Three speaker models: Jensen P12R, JBL D-120F, and Celestion 25-watt Greenback
03Five microphones: Shure SM57, Sennheiser MD-421, Royer R-121, Beyerdynamic M160, and Neumann U67
04Dual microphone mixing with phase-aligned combinations and off-axis positioning
05Four discrete input jacks (INST 1, INST 2, MIC 1, MIC 2) plus virtual Y-cable patching
06LINE/NORMAL input switch for gain compensation on hot signals
07High-pass filter on microphone channels at 82 Hz with 18 dB per octave slope
08Unison technology for impedance interactions and bidirectional gain control on Apollo