I've just bought a Hypex stereo amplifier with low, medium, and high gain settings. My digital source selector is an RME ADI-2 Pro fs r black edition, from which I send two different digital outs to a MiniDSP Flex 8 for final D/A conversion and line out to the amp. The MiniDSP device has a max 2V output. The speakers are DIY Heissmann DXT-Mon-182, which are nominal 4 ohms. I high-pass them at 60hz if that matters. Do these specs help me determine what gain setting to use for the Hypex amp?