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CVA50MX-1
CVA50PMX-1
Owner's Manual
August 2013
www.stewartaudio.com
Important Safety Instructions
Before using your Stewart Audio Inc. Power Amplifier, please read this
Owner's Manual carefully to ensure optimum trouble-free perfor-
mance.
WARNING: TO REDUCE THE RISK OF ELECTRICAL SHOCK, DO NOT EX-
POSE THIS AMPLIFIER TO RAIN OR MOISTURE. DANGEROUS HIGH
VOLTAGES ARE PRESENT INSIDE THE ENCLOSURE. DO NOT OPEN THE
CABINET. REFER SERVICING TO QUALIFIED PERSONNEL ONLY.
CAUTION
RISK OF ELECTRIC SHOCK
CAUTION: TO REDUCE THE RISK OF ELECTRIC SHOCK,
DO NOT REMOVE COVER (OR BACK). NO USER-
SERVICEABLE PARTS INSIDE. REFER SERVICING TO
QUALIFIED SERVICE PERSONNEL.
The lighting bolt within arrowhead symbol, within an
equilateral triangle, is intended to alert the user to the
presence of un-insulated "dangerous voltage" within
the product's enclosure that may be of sufficient mag-
nitude to constitute a risk of electrical shock to person.
The exclamation point within an equilateral triangle, is
intended to alert the user to the presence of important
operating and maintenance (servicing) instruction in the
literature accompanying the appliance.
Important Safety Instruction – Please Read Prior to Product
Installation.
1.
Installation should be performed by a trained and licensed professional to
insure safe and lasting operation.
2.
All of the safety and operating instructions should be read before the am-
plifier is installed or operated. Retain these instructions for future refer-
ence. All instructions should be followed; all warnings on the amplifier
and in the operating instructions should be adhered to.
2
DO NOT OPEN
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Related Manuals for Stewart Audio CVA50MX-1
Summary of Contents for Stewart Audio CVA50MX-1
- Page 1 Important Safety Instructions Before using your Stewart Audio Inc. Power Amplifier, please read this Owner’s Manual carefully to ensure optimum trouble-free perfor- mance. WARNING: TO REDUCE THE RISK OF ELECTRICAL SHOCK, DO NOT EX- POSE THIS AMPLIFIER TO RAIN OR MOISTURE. DANGEROUS HIGH VOLTAGES ARE PRESENT INSIDE THE ENCLOSURE.
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Page 2: Table Of Contents
The amplifier should be situated so that its location and position does not Table of Contents interfere with its proper ventilation. For example, the amplifier must not be placed on a rug, bed, sofa or similar surface that impedes airflow Important Safety Instructions ······························································... -
Page 3: Welcome
2.2.1 Pole-Mounting Sub Compact 1/3 rack package The CVA50MX-1 / CVA50PMX-1 has mount holes on both the top as 4 input mono mixer amplifier well as the side of the unit which can be used with the AV-Pole bracket ... -
Page 4: Proper Cooling Considerations
2.2.2 Product Dimensions 2.4 Input Connections The CVA50MX-1 / CVA50PMX-1 has 4 inputs which are mixed into the final mono output. The first input channel is for a balanced microphone 6.25in and the rest are stereo, unbalanced inputs. All stereo inputs are 15.9cm... -
Page 5: Output Connections
2.4.2 Input 2—RCA 2.5 Output Connections Stewart Audio recommends using high-quality speaker wire and con- The second input channel is a stereo RCA jack which is then summed nectors to send the output signal of your amplifier to the speakers. The to mono before the final output. - Page 6 2.5.2 50W x 1 @ 8 ohms The CVA50MX-1 / CVA50PMX-1 allows for two output channels into 4 The CVA50MX-1 / CVA50PMX-1 can bridge it’s 4/8 ohm output into one or 8ohms at 25 watts a channel. Both channels will have identical 50W channel.
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Page 7: Operation
2.5.3 Constant Voltage (25V/70V/100V) 3 Operation The CVA50MX-1 / CVA50PMX-1can additionally be setup as a constant 3.1 Operating Precautions voltage amplifier for a distributed audio solution. It is capable of supply- ing both 25V and 70V output or 25V and 100V output. Refer to the fol- lowing diagrams below when connecting speakers. - Page 8 3.2.2 Controls Remote Volume Control Input Volume Controls Remote Muting All CVA50MX-1 / CVA50PMX-1 controls are located on the rear of the Master Volume Control unit. There is no power switch so the CVA50MX-1 / CVA50PMX-1 will Line Out Ducking Sensitivity Knob turn on whenever power is supplied to it.
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Page 9: Special Features
The rear panel of the CVA50MX-1 / CVA50PMX-1 includes a set of 4 3.3 Special Features DIP switches which control both the pre-gain of the microphone as well as the +48VDC phantom power. 3.3.1 Signal Sense Technology™ The “Mic Gain” setting will adjust for the sensitivity of microphones by Stewart Audio’s Signal Sense Technology™... -
Page 10: Troubleshooting
4 Troubleshooting 4 Troubleshooting (Cont.) Problem: Output sound is distorted or cracking. Problem: Power indicator does not turn on. Procedure: Check all cables for damage or loose connections and re- Procedure: Check that the amplifier is plugged into a live outlet. After duce the gain on the input signal at the mixer or preamp level. -
Page 11: Technical Specifications
>90dB 6.1.1 Eligibility Requirements. Remote Volume Control 0-10VDC Stewart Audio warrants against all malfunctions which come as a result Remote Muting Contact Closure of component or manufacturer defect. The amplifier is also covered from all failures which arise during the warranty period (3 years from Microphone Ducking 0 to –90dB (Adjustable) - Page 12 2. Do not ship any accessories (manuals, cords, hardware, etc.) with your unit. These items are not needed to service your product. If Stewart Audio is unable to contact the sender in 14 days, the mer- Stewart Audio will not be held responsible for these items if they chandise will be considered scrap and may be disposed of.
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Page 13: Accessories
7 Accessories 8 Notes The following accessories are available from Stewart Audio for your amplifier. All part numbers shown are Stewart Audio Part Numbers. Mounting Brackets AV-POLE Pole-mount bracket for compact amplifiers AV-BRACKET Universal mounting bracket for compact amplifiers Connection Adapters ADPT-RCA Mono Female RCA to male Euroblock. -
Page 14: Notes
8 Notes (Cont.) 14397 Cuesta Court Suite D1 Sonora, Ca. 95370 Phone: 209-588-8111 Fax: 209-588-8113 www.stewartaudio.com...
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