The VMAX is a high output two-way active speaker/monitor speaker system designed to deliver HI-FI sound quality for high SPL sound reinforcement applications. The VMAX has two separate power amplifiers capable of producing more than of 400 watts of power in the VMAX12 and 400 watts of power in the VMAX 15. Each amplifier receives its input signal from an internal 4th order crossover network specifically designed to provide optimized phase and frequency response at each crossover point. The internal amplifiers are based on ISP Technologies patent pending D-CAT (Dynamic Current Amplifier Technology) amplifier technology. The D-CAT technology is capable of delivering extremely high output current providing an improvement in transient response, output current and a noticeable improvement in PUNCH. The D-CAT amplifier technology utilizes a monolithic power amplifier driver that reduces parts count and greatly improves reliability. The D-CAT amplifiers provide improved reliability by including a several protection points and over temperature protection for both the amplifiers and the power transformer. The VMAX offers XLR balanced inputs for two microphone/hne inputs and a dedicated line input as well as, an XLR link output for connecting multiple speakers. Each input channel has an input level adjustment.