AA.1 is designed to be your bridge between the world of guitar pedals and the world of Eurorack modular. This compact 4HP amplifier attenuator module has everything you need to interface your modular with your guitar effects pedals as well as with your guitar or bass. Amplifier: Gain: +18dB Max Input Level (before soft clipping): 2.25Vpp Max Output: 18Vpp Input Impedance: 1 MΩ Output Impedance: 1 kΩ 20Hz – 20kHz, +/- 1dB Attenuator: Gain: -18dB Max Input Level (Nominal): 20Vpp Max Output Level (Nominal): 2.5Vpp Input Impedance: 8 kΩ Output Impedance: 880 Ω 20Hz – 20kHz, +/- 1dB