The Summit Audio TPA - 200B is a dual - channel, tube/solid - state hybrid microphone preamp. It offers three input types: microphone, line level, and front - panel Hi - Z. The continuously variable input and output gain let you overdrive the tubes as you like, making it great for both tracking and mixing. Jensen input transformers give an open and airy top end, enhancing various signals, even those with dense frequencies like voices and electric guitars. A 2 - position pad switch further enhances the signal, and individual phase reverse switches solve issues in multi - microphone setups. This preamp combines a classic tube and transformer front - end with a modern solid - state output stage, providing ultra - clean gain that brings out the tube's warmth and rich harmonics. You can set the gain from clean to thick harmonic distortion with many variations in between. Each channel has its own input and output gain knobs. For cleaner sound, set low input gain and max output gain; for more harmonics, increase input gain and decrease output gain. Key features include overload and overdrive indicators, global switchable +48V phantom power, a universal internal power supply, and it's hand - crafted in the USA. Technical specs show it has 2 channels, multiple input and output options, a +48V phantom power, a maximum gain of 75dB, and more.
Using the Summit Audio TPA - 200B is easy. First, connect your microphone or other audio source to the appropriate input. You can choose from microphone, line level, or front - panel Hi - Z inputs. If you're going for a cleaner sound, set the input gain lower and the output gain to the maximum. For a more distorted and harmonic - rich sound, increase the input gain and decrease the output gain to balance the overall signal. When using multiple microphones, use the individual phase reverse switches to fix any issues. Remember to turn on the global switchable +48V phantom power if your microphone requires it. As for maintenance, keep the preamp in a clean and dry place. Avoid exposing it to extreme temperatures or humidity. If you notice any problems like overload or overdrive, check the indicators and adjust the gain settings accordingly. Also, since it has vacuum tubes, be careful when handling and follow the instructions for tube replacement if needed.
