The Audio2000'S AKJ7004 system is a truly pleasantly sounded professional karaoke mixer. In order to provide a complete mastery on the control of a karaoke joy and karaoke performance, the AKJ7004 is configured with all the essential karaoke features: 16-bit digital key controls, an echo volume control, echo high or low tone controls, an echo repeat adjustment, an echo speed adjustment, a video input or output routing, and smooth vocal sound reinforcement capabilities.;;In addition, the music balance or treble or bass controls and microphone treble or bass controls enable the users to master the music and microphone sound in a variety of acoustic environments. Three microphone inputs on the AKJ7004 are intended to be plentiful for multiple users. Two MIC INSERT's at the rear panel allow the user to add various sound effects to the vocal sound through external sound effectors.;;The AKJ7004 is carefully engineered to present a high-fidelity direct sound field in a small-room acoustic environment, in a large-room acoustic environment, or in a open performance field.;;As a performance extension of the AKJ7404 system, the AKJ7004 enjoys the delicate engineering and the acoustic power of the market-proven AKJ7404 solid performance history. Also, the AKJ7004 inherits the Audio2000'S product tradition of quality, reliability and versatility.