User manual ART SLA1
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Manual abstract: user guide ART SLA1
Detailed instructions for use are in the User's Guide.
[. . . ] 5 Clip LED Indicator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Protect LED Indicator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 ¼" Input Jacks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [. . . ] AC POWER HOOKUP The SLA-1 has an internal power supply designed to operate at 115 VAC @ 50 to 60 Hz. Units manufactured for use outside the United States of America have been modified to comply with the required electrical specifications AUDIO CONNECTIONS Audio connections to and from the SLA-1 are balanced XLR [Pin 2 = Hot (+), Pin 3 = Cold (-), Pin 1 = (Ground)] and balanced or unbalanced ¼" [Tip = Hot (+), Ring = Cold (-), Sleeve = (Ground)]. OPERATION PRECAUTIONS Warning: For optimum performance and reliability, do not operate the amplifier with a speaker load of less than 4 ohms per channel, or any combination of speakers that together are less than 4 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.
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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. The LED will glow when the amplifiers output signal is within approximately 30dB of full scale. 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.
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REAR PANEL CONNECTIONS
It is easy to interface the SLA-1 with a wide variety of equipment. 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. For example: connect an XLR cable to the input of channel one, then connect a ¼" cable to the input jack of channel one and jump that cable to the input of another amp. [. . . ] 3) Contact our Customer Service Department at (716) 297-2920 for your Return Authorization number or questions regarding technical assistance or repairs. Customer Service hours are 9:00 AM to 5:00 PM Eastern Time, Monday through Friday. 5) Include with your unit: a return shipping address (we cannot ship to a P. O. Box), a copy of your purchase receipt, a daytime phone number, and a description of the problem. [. . . ]
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