The Concero 65 monoblock power amplifier series come in 3 versions, the Reference, the Signature and the highest level – the Limited Edition.
The Concero 65 Reference and Concero 65 Signature are both smaller versions of the Exsequor monoblock power amplifier, which is our top level 814 driving 813 circuit topology.
The Concero 65 Limited Edition is a different breed, and descends from our Legend Series Achilleas amplifier, based on our 813 driving 813 circuit topology. The Limited Edition version uses the same 813 directly heated triode on both the driver and the output stage, thus being a ‘one type’ tube amplifier.