This is a kit of bare PCB of a pure class A MOSFET amplifier, output power 100W at 8 ohms loading. The design is reference to Pass A-2. The boards consists of one main board and two mirrored design output boards. This allows flexibility for user to put into the housing during implementation. As in original design, the output consists of six pairs of MOSFET for output and six pairs of MOSFET as the current source. The amplifier can deliver 100Wrms operating at class A with ease. Heat dissipation is important so massive heatsink is a must. This is a kit of bare PCB for one channel of amplifier. For stereo application two sets are needed. PCB thickness : 1.6mm, 2 oz ( 75um thickness copper) deposition which is FOUR times normal process of copper thickness. Board dimension : Main board - 160mm x 75mm ; output board - 160mm x 40mm Tin plated surface. We provide schematic to buyers by EMAIL( to be attached with shipment notice). We do air shipping worldwide at US$7.00. We welcome combine shipping. Track Page Views With Auctiva's FREE Counter On Mar-05-09 at 01:26:53 PST, seller added the following information: Sellers: Get your own map of past buyers. Fast. Simple. On Apr-08-11 at 12:16:26 PDT, seller added the following information: SquareTrade AP6.0 SquareTrade squaretrade warranty v2.0