User manual ART SLA1

[. . . ] The ART SLA-1 Studio Linear Amplifier TABLE OF CONTENTS Safety Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . AC Power Hookup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [. . . ] Using one speaker per channel, it must be rated at 4 or more ohms. Using two speakers per channel, they must each be rated at 8 or more ohms. When in Bridge Mode, the speaker should be rated at 8 or more ohms. -4- CONTROLS & INDICATORS ­ FRONT PANEL POWER SWITCH The Power Switch is located on the front of the unit, directly in the center. During initial installation, make sure the attenuators for channels one and two are set to a low volume level before applying power. CHANNEL ATTENUATORS The dials for channel one and channel two's volume attenuators are located to the left and right of the Power Switch. When set to zero (fully clockwise), there is no attenuation of volume. As the attenuation amount increases by turning counterclockwise, the volume is reduced. SIGNAL LED INDICATOR This LED indicates that a signal is present. The LED will glow when the amplifiers output signal is within approximately 30dB of full scale. CLIP LED INDICATOR This LED indicates that the Power Amp is clipping. This LED comes on when the output signal from the amplifier begins to distort. When there is significant clipping, lower the input gains to reduce clipping, as well as the risk of damage to the amplifier and speakers/monitors. PROTECT LED INDICATOR The LED will glow when the channel goes into protect mode. In protect mode, the output signal to the speakers will be muted (channel specific). If there is a fault condition at the speaker outputs (due to a severe load or short) the LED will light until the fault is removed. -5- REAR PANEL CONNECTIONS It is easy to interface the SLA-1 with a wide variety of equipment. All inputs and outputs are located on the rear panel. Standard ¼" and XLR inputs and binding post outputs make patching simple. INPUTS The SLA-1 has two styles of input connections: XLR and ¼". Use these connections to connect the output signal from a mixer, preamplifier, crossover, or EQ to the amplifier. The balanced XLR connection is recommended for cable runs longer than 20 feet. For cable runs under 20 feet, the ¼" option may be preferable. You may also use the two different types of input cables to jump a parallel connection to another amp. [. . . ] A R T shall not be liable for any consequential damages, including without limitation damages resulting from loss of use. Some states do not allow limitations of incidental or consequential damages, so the above limitation or exclusion may not apply to you. This warranty gives you specific rights and you may have other rights, which vary, from state to state. For units purchased outside the United States, an authorized distributor of Applied Research and Technology will provide service. - 11 - SERVICE The following information is provided in the unlikely event that your unit requires service. [. . . ]