Active Loudspeaker System

44 ACTIVE LOUDSPEAKER SYSTEM The loudspeaker system published last month is ideal for being combined with the active phase linear network published last year and Sanyo"s new series of output amplifier modules. EE April 1988 The closed box design for the Uniphase Loudspeaker System 0) is ideal for an active three-way system based on the Ac- tive Phase-linear Cross-over Network (2) and Sanyo"s Type STK-4036XI 50-watt output amplifier module. The position- ing of the drive units in this box is such that the phase differences at the cross- over points of the three units is virtually zero. This further accentuates the ex- cellent phase behaviour of the phase- linear network. Many output amplifier modules have not been well received by some audio designers in the past. Much depended, of course, on the type and manufacturer of these devices. However, the manufac- turers have not been idle, and nowadays there are a number of excellent modules on the market. For a number of reasons, the ch...