Two box preamp unit for sale. The first contains a exceptionally high quality 6-way single ended switch and a captive lead for connecting to the second box that contains a high quality welwyn stepped attenuator and the new WNA Mk 3 buffer amp with high performance AD8065 opamps fitted. This second box has a single unbalanced input and three pairs of balanced outputs. Ideal for bi or tri-amping. Comes with cascode PSU. New cost around £900 assembled by Dr White himself. Looking for £450. Easily beat the TEAD "The Vibe" with Pulse PSU. Selling due to purchase of Django tvc preamp after upgrade to active from tri-amped system.