I bought the the A-102 Diode LPF as a companion to my A-108 filter. Where the A-108 delivers a smooth powerful and predictable sound, the A-102 is very different. Turning up the resonance on the A-102 results in a warm distortion mixed with static like you get between AM radio stations. Apparently each A-102 unit will sound different from the next, due to variations in the diodes that form the heart of the filter. I really like the idea that each A-102 is in some way unique.
Highly recommended, but perhaps not as your only filter!