I have two pairs of the Black Mamba and one older Alpha. The Black Mamba is used on my dual power supply phono stage and the alpha on my preamp. They seem to work very well and I don’t perceive any problems. But, the newer versions of these Alpha NR are rated way better are have better noise dissipating technology which are beneficial in today’s extremely high EMI/RFI environment.
The original Alpha and Mamba have been used for years and I don’t really feel highly compelled to upgrade, but, curiosity killed the cat, LOL.
The original Alpha and Mamba have been used for years and I don’t really feel highly compelled to upgrade, but, curiosity killed the cat, LOL.