I had one of Nelson' Aleph stereo amps plus I've owned several M-22s and M-25s. I would place the M-22 above the Aleph stereo primarily due to the "magic" factor. The M-22 is one of the greatest low powered amplifiers that I've had the privilege to own and audition. Its magic is based upon a to-die-for liquid midrange coupled with simply holographic image placement. I prefer it to the excellent Classe DR2/3. The Aleph did nothing wrong, it just did not have that certain something we all strive for. It is not remembered as classic. Just a good basic amp. The mono blocks bettered it.
Peter
Peter