Nice review, thanks. I bought a Mani 2 for a family member to bypass the built in phono pre in their Audiolab 6000A integrated which is just so so (the only thing so so about it). I just plugged it in at home to test it in my system.
First off, the Mani 2 power supply is dead silent. Connected to the pre with power on, or with the pre power off. Nothing. No hum coming out of the power supply. With the turntable idle but the preamp on, I start to hear a little noise through the speakers at 3/4 volume. Unremarkable, in a good way. Playing music at normal listing levels there is no noticeable noise at all. I have the Mani 2 power supply plugged into a power strip with a Shunyata Venom Defender power conditioner which has zapped any noise associated with some notoriously buzzy cartridges, fwiw. If I plug the Mani 2 PS directly into a wall socket in the same circuit with a dimmer light switch, there is a VERY SMALL amount of hum audible, but only if I put my ear right on it. Again, unremarkable, and why my rig is on a dedicated circuit.
How does the Mani 2 sound? Right out of the box stone cold, it sounds good. Paired with a AudioTechnica AT 150Sa MM cartridge, the Mani 2 sounds fast, detailed, decent sound stage between the speakers, and capable of very deep and accurate bass, startlingly good bass (with no filters in). It doesn’t quite have the intoxicating midrange of the Project Tube Box DS with Genalex Gold Lion tubes and an aftermarket linear power supply that I am used to, but in other ways it is better. The Mani 2 is just providing the facts, and a lot of good facts at that. For $149, what’s not to like? Well played Schiit Audio.