• 4 Channel Microphone Preamplifier + Instrument Di• Fully Discrete, Transformer Coupled, Through-hole Component Topology• Altran Usa Custom Wound, Premium Input And Output Transformers• X520 Discrete Op-amp In Every Channel, Socketed For Convenience. Can Be User-replaced With • Most 6 Pin, Discrete Op-amps For Varying Flavor & Tone• 65db Of Gain• +48 Volt Phantom Power• Led Metering• Output Trim Knob For Precise Level Control And Tone Sculpting• Internal Power Supply (Grounded, 3 Pin Iec Cord)