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Citation : The unit’s A to D Input ¼ inch phone jacks are set to accept +4dBu professional interface nominal input levels, balanced or unbalanced.

When the A and B Digital input level pots are fully clockwise, this nominal input signal level results in a -14dBfs signal at the converter output.

The A and B Digital level pots are passive cut only circuits, in order to provide the cleanest, straightest wire path possible into the converters. They are designed to be operated fully clockwise. In other words, to turn the level pots fully clockwise means that the input signals are fully unattentuated. This provides for a +18dBu max input signal for 0dBfs at converter out.

As our mic pre is capable of +28dBu out before clipping, the user will be trimming back those A and B Digital level pots with higher level mic pre signals to avoid clipping the converter inputs. This allows you to crank the mic pre, or even drive it into distortion, while still being able to trim the converter levels back in order not to “exceed the zero”.

Also, we designed the unit to have 3 red leds on the output meters to give a full 6dB of warning before you hit 0dBfs. This doesn't mean you should avoid using those first 2 red leds, just that you’ll want to stay off 0dBfs.

Citation : The Hi-Z front panel input goes directly to the op-amp, allowing a low level input such as a guitar or bass to be amplified without a matching transformer or direct box. This Hi-Z input can take input levels as high as +22, making it perfect for keyboards and other high level devices. The rear output is an XLR connector.