I have both the Black and the Bronze. I like both, but if forced to choose, I would pick the Bronze. The Black is more neutral and more detailed, though still reasonably warm and musical. The Bronze is just a shade less detailed but with a slight tonal sweetness which the Black does not possess.
It also depends on the turntable and arm. On my Kuzma Stabi Ref with 4 Point (now sold) - which was very neutral to the point of blandness - I found the Black sounded a little too restrained. But on a turntable and arm with more character - such as my PTP Solid 9 with Audio Origami PU7 - the Black sounded superb. The Bronze sounded great on any combination, and will sound better on a wider variety of turntables and arms.
I therefore think that the Bronze is a safer choice, and a great sounding cartridge. It is actually closer in sound the Windfeld Ti (which I also have) than the Black, since the WIndfeld also has a richer tonal signature.
It also depends on the turntable and arm. On my Kuzma Stabi Ref with 4 Point (now sold) - which was very neutral to the point of blandness - I found the Black sounded a little too restrained. But on a turntable and arm with more character - such as my PTP Solid 9 with Audio Origami PU7 - the Black sounded superb. The Bronze sounded great on any combination, and will sound better on a wider variety of turntables and arms.
I therefore think that the Bronze is a safer choice, and a great sounding cartridge. It is actually closer in sound the Windfeld Ti (which I also have) than the Black, since the WIndfeld also has a richer tonal signature.