After about two years of development, the Soulution 757 deemphasis preamplifier (phono equalizer) is now compatible with optical cartridges.

For details, please see the following press release.

Soulution 757 deemphasis preamplifier press release

The Grand Master Extreme and the Soulution 757 deemphasis preamplifier will be demonstrated in the Soulution room at the Munich Audio Show.