The DuTCH audio MC1.x passive monitorcontroller series are designed around a 64 steps relay-based parallel attenuator. Compared to a standard series-based attenuator or potmeter this approach is way more transparant and clean. The multifunctional encoder, easy to read display, sturdy push-buttons and the powerful headphones amp makes this the ideal monitoring workhorse for any studio.
If you want to compare all MC1 models and possibilities, please follow this link.