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INSTALLATION 

 

The SLA-4 may be used in a wide variety of applications from project 
or professional studio environments to commercial sound installations. 
Self-contained in a steel and aluminum enclosure, the unit is designed 
for many years of use. For greater reliability, we recommend that you 
not place the unit directly under or on top of other sources of heat. It is 
important that any rack-mountable unit is properly ventilated, and the 
SLA-4 is no exception.  

 

AC POWER HOOKUP 
 

The SLA-4 has an internal power supply designed to operate at 120 
VAC @ 50 to 60 Hz. Units manufactured for use outside of North 
America have been modified to comply with the required electrical 
specifications. 
 

AUDIO INPUT CONNECTIONS 
 

Audio connections to the SLA-4 are balanced or unbalanced ¼” [Tip = 
Hot (+), Ring = Cold (-), Sleeve = (Ground)]. 
 
Euroblock connections: can be wired balance or unbalanced. 
See diagram on page 11 
 

SPEAKER LOAD SAFETY 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 one speaker per channel, it must be rated at 4 Ohms or greater. 
When using two speakers per channel, in parallel, they must each be 
rated at 8 Ohms, or greater. 

  

 
When in bridge mode, the speaker load should be 8 Ohms, or greater. 
 

 

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Содержание SLA-4

Страница 1: ...SLA 4 FOUR CHANNEL STUDIO LINEAR AMPLIFIER USER S GUIDE...

Страница 2: ...2...

Страница 3: ...Cover 7 CONTROLS AND INDICATORS FRONT PANEL 8 9 Power Switch 8 Channel Level Controls 8 Signal Indicator LED 8 Clip Indicator LED 8 Protect Indicator LED 9 REAR PANEL CONNECTIONS 10 13 Inputs 10 Input...

Страница 4: ...ion slots or position the unit where the air required for ventilation is impeded If the unit is to be operated in a rack case or other furniture ensure that it is constructed to allow adequate ventila...

Страница 5: ...sily delivers the power you need for professional audio applications Features Extremely Low Noise Discrete Linear Design 4 x 100 Watts Ch 8 Ohms 140 Watts Ch 4 Ohms 2 x 200 Watts Ch 16 Ohms 280 Watts...

Страница 6: ...ufactured for use outside of North America have been modified to comply with the required electrical specifications AUDIO INPUT CONNECTIONS Audio connections to the SLA 4 are balanced or unbalanced Ti...

Страница 7: ...uded with the SLA 4 Simply set the channel level controls to the desired gain settings and press the knobs into the chassis until they lock into their recessed position Then remove the two small phill...

Страница 8: ...vel is at maximum The level is reduced as you turn the control counterclockwise Full attenuation is at infinity The level controls are detented and calibrated in dB SIGNAL INDICATOR LED This LED indic...

Страница 9: ...kers 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 Channels One and Two share a Protec...

Страница 10: ...le runs under 20 feet the unbalanced connections can be used You may also use the two different types of input connections to jump a parallel connection to another amp For example connect a cable to t...

Страница 11: ...ff and that your speakers are wired appropriately when changing the mode switches OUTPUT BINDING POST The SLA 4 Outputs are multi connection jacks You can use banana jacks spade connectors or bare wir...

Страница 12: ...re that the red and black caps on the binding posts are tightened down completely and that they are securely connected to avoid the possibility of the banana plugs from popping out SMARTFAN The SLA 4...

Страница 13: ...INPUT The SLA 4 features an internal power supply Plug the detachable cable into a standard wall outlet Be sure that the supplied voltage matches that of the required voltage labeled on your amplifie...

Страница 14: ...Use the front level controls to regulate the output volume Be sure not to raise the volume past the clip level however an intermittent clip signal is acceptable BRIDGE OPERATION Be sure the amp is shu...

Страница 15: ...s Fahrenheit the amplifier will mute until it cools down enough for safe operation Make sure there is adequate ventilation around the heatsinks if you plan on rack mounting the SLA 4 in an enclosed sp...

Страница 16: ...ns This warranty does not apply in the event of misuse or abuse of the product or as a result of unauthorized alterations or repairs This warranty is void if the serial number is altered defaced or re...

Страница 17: ...nce or directly request a Return Authorization for service in the resources area of the website 3 If you are returning the unit for service pack the unit in its original carton or a reasonable substit...

Страница 18: ...ohms bridge short term CMRR 60dB typical 1kHz Frequency Response 10Hz to 40kHz 5dB Hum and Noise 100dB below clipping Total Harmonic Distortion THD 0 05 typical Slew Rate 20V uS Damping Factor 100 Tr...

Страница 19: ...19...

Страница 20: ...www artproaudio com E mail support artproaudio com 2008 Applied Research Technology Four Channel Studio Linear Amplifier SLA4 5004 101 20...

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