A fully balanced dedicated DAC + fully balanced HP/Pre amp.
Two models exist: The NFB-10ES with the Sabre32 ES9018 DAC chip and the NFB-10WM with dual Wolfson WM8741 DAC chips.
In fall 2011, the original NFB-10 was discontinued and replaced by the NFB-10SE, using dual Wolfson WM8741 chips exclusively. No Sabre ES9018 version has been offered since the NFB-10ES. The NFB-10SE was significantly reduced in price as point-to-point hand soldered internals were extensively replaced by automated manufactured PCB occupying a smaller, lower cost enclosure. Amplifier power output was moderately reduced. Other changes included access via software to internal DAC filters through front panel input. Subsequent NFB-10 models, including the most recent NFB-10.32 maintained these changes. The current version is offered with an optional remote.