Sytek mpx-4a - 4 channel preamps that I've owned since 2005. MPX4A comes equipped with 48v Phantom Power, Mute, and Phase reverse options.
These preamps are great for clean and fast sounds. I used them on drum overheads, room m. Background vocals, electric guitar amps, acoustic instruments, percussion. Preamps are based on the same preamps found in Neotek consoles.
These Do Not have the Burr Brown option, as I preferred the cleaner opamp sound for my purposes. There is some minor rack rash. Here's a little technical info. With modern techniques, the MPX-4Aii's transformerless input design rivals and even surpasses the best transformer-input designs that were the standard in the industry earlier. This is especially true in low-level input applications to achieve extremely low noise floor, minimum distortion, wide bandwidth and linear phase response.
This approach can be obtained achieving a warm sound, crystal clear and fast response, getting a step closer to the human ear characteristics. The item "Sytek MPX-4A MPX4Aii 4 Channel Microphone Preamp Mic Pre" is in sale since Friday, February 1, 2019. This item is in the category "Musical Instruments & Gear\Pro Audio Equipment\Preamps & Channel Strips". The seller is "talkieparade" and is located in Brooklyn, New York. This item can be shipped to United States.