The MP507 is a single channel preamp that utilizes a single 12ax7 vacuum tube. It has a MU-Metal audio transformer to decrease noise and enhance the sound quality of the XLR input. The design of the MP507 utilizes a high speed self regulated switching power supply to generate 230V of clean usable plate voltage for the 12ax7 vacuum tube. The result is a clean and powerful sounding tube preamp.
- Input Impedance: XLR: 600 Ω (Transformer balanced)--- 1/4”: 1m Ω
- Output Impedance: XLR: 100 Ω --- 1/4”:100 Ω
- THD: .15%
- S/N Ratio: >110 dB
- Maximum Input Level: -30 dB mic +4 line XLR, -10 dB 1/4”
- Maximum Output Level: +16 dB XLR, +10 dB 1/4”
- Pad: - 37 dB
- Frequency Response: 20 - 25kHz +/-3 dB
- Power: 15 VDC