Several years ago we released the highest grade hybrid passive attenuator [control meister CM-2000] that does not contain an active circuit and is distinct from the previous preamplifiers.
We adopted an ideal volume adjustment circuit that acquired a patent based on a new idea in the volume adjustment mechanism which can be said to be the key for an audio playback. Furthermore, we have newly developed an attenuator transformer that is also compatible with balanced input/output, and have achieved an even sharper, more detailed, and a more expansive sound playing field than before.
 
By re-examining the attenuator transformer, we are now releasing the [Control Meister CM- 2200], the world's only passive attenuator with a +6dB amplification function that can be used with ease in all situations, including high volume playback coming from modern low-efficiency speakers and low-gain amplifiers. The CM-2200 is the only passive attenuator with a +6dB amplification function.