iSP Technologies LT2 series Owner's Manual page 3

The exclamation point triangle is used to alert the user to important operating or
maintenance instructions.
Caution: Exposure to extremely high noise levels can
cause permanent hearing loss.
The LT2, LT2S and LT2XF speaker system is capable of producing in excess of 129db 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 LT2 active speaker system. The LT2 is a high
output three-way active speaker system designed to deliver HI-FI sound quality for high SPL
sound reinforcement applications. The LT2 is designed with a 400 watt 15 inch woofer, a 300
watt 8-inch midrange driver and a high performance, 2 inch high frequency compression driver.
The LT2 has three separate power amplifiers capable of producing upwards of 900 watts of
th
power. Each amplifier receives its input signal from an internal 4 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