ISP Technologies VMAX 150C - Manual (Page 3)

Caution: Exposure to extremely high noise levels can
cause permanent hearing loss.
The VMAX speaker system is capable of producing in excess of 124db SPL at 1 meter.
Continued exposure to noise levels in excess of 90db may cause permanent hearing loss.
Below is a chart of the OSHA (Occupational Safety & Health Administration) regulations for
Occupational Noise Exposure. Please note: OSHA requires hearing protection for any work
environment when the sound levels exceed those shown in Table G-16 when measured on
the A scale of a standard sound level meter at slow response.
INTRODUCTION
Thank you for purchasing ISP Technologies VMAX Series Active speaker system. 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 4
th
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/line 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.