When developing the AM400 Signature power amplifier, we took into account all the parameters, compared and listened to each component with great attention to detail. The power amplifiers have 8 MOS-FET transistors per channel, providing considerable energy that is perfectly controlled thanks to carefully designed audio stages. The connection cables between the main board and the speaker outputs are made of pure copper, deoxygenated, silver-plated and insulated with Teflon. One of the best French audio cable manufacturers manufactures these cables on request. The filter capacitors with low series resistance are also made to measure by a leading specialist.