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Table of Contents
Related Manuals for Hill Audio VMA-1120
Summary of Contents for Hill Audio VMA-1120
- Page 1 RevB 06-2017...
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Page 2: Important Safety Instructions
USER MANUAL - VMA1120 INSTALLATION MIXING AMPLIFIER Welcome Thank you for choosing Hill Audio for your sound system. To make sure that this product meets your expectations and provides long-term, reliable performance, please read and follow this instruction manual carefully. -
Page 3: Health Advice
USER MANUAL - VMA1120 INSTALLATION MIXING AMPLIFIER Description The VMA-1120 is a combination of a basic mixer for music and three microphones, a media player, and a mono constant voltage power amplifier for installed sound systems. This comprehensive combi- nation of basic features makes the VMA-1120 the ideal all-in-one solution for small to medium sized installed sound systems in commercial environments. -
Page 4: Configuration Setup
USER MANUAL - VMA1120 INSTALLATION MIXING AMPLIFIER Configuration setup Before using the VMA-1120, it must be configured to match the application. Make sure the unit is unplugged from AC mains and remove the top cover to gain access to the internal elements, then set switches and jumpers and arrange connctions as per following instruction. - Page 5 USER MANUAL - VMA1120 INSTALLATION MIXING AMPLIFIER JP302 - Mic Emergency. This jumper decides whether the internal mics remain active when an emergency signal is present at the emergency input. Shown position = active (default) Move jumper to de-activate internal mics in emergency. Front PCB Low-Z or LINE (Transformer) output configuration Amp PCB...
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Page 6: Controls And Connections
USER MANUAL - VMA1120 INSTALLATION MIXING AMPLIFIER Controls and Connections Connections - Rear PAGE 5... - Page 7 USER MANUAL - VMA1120 INSTALLATION MIXING AMPLIFIER Controls - Front 34 35 36 24 25 26 PAGE 6...
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Page 8: Functional Description
USER MANUAL - VMA1120 INSTALLATION MIXING AMPLIFIER Functional Description The VMA-1120 is a combination of a triple-microphone & music mixer, a media player, and a mono constant voltage power amplifier which can optionally be wired for low-impedance operation. Packed in a rugged 19’’ | 2U case and fitted with forced fan cooling, it’s a comprehensive and reliable centre piece for commercial sound systems in retail and hospitality. - Page 9 USER MANUAL - VMA1120 INSTALLATION MIXING AMPLIFIER GAIN control for input channels. This allows the sensitivity (input gain) for every line input to be adjusted, so that sources of different output level can be played at properly balanced levels. Microphone inputs. This are balanced ¼” TRS connectors, which can be internally set to either carry phantom power (+12V DC) or not, thus this input can be used both with condenser and dynamic microphones (see chapter “setup configuration”, jumper JP102, JP104, JP106 - default is phantom power = OFF).
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Page 10: Media Player
USER MANUAL - VMA1120 INSTALLATION MIXING AMPLIFIER Utility volume control. Controls the volume of the line level source connected to the rear-side UTILITY input (9). Utility On/Off switch. Enables (pressed) or disables(released) the Utility input. A LED indicates the enabled status. MUSIC source selector. - Page 11 USER MANUAL - VMA1120 INSTALLATION MIXING AMPLIFIER USB memory socket. Insert a FAT-formatted USB memory stick of max 16GB with WMA or MP3 files here. Note that only one of the two media sockets can be used at a time; either the USB socket (31) or the SD socket (32).
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Page 12: Operation
USER MANUAL - VMA1120 INSTALLATION MIXING AMPLIFIER Operation A. Connections For connecting this unit to AC mains, please note: Check whether the AC mains voltage and frequency is the same as this product is specified for (see rear panel of product). Whenever the specified voltage or your AC plug should not match the local conditions, do NOT plug the AC cord into the wall outlet and contact you dealer immediately. - Page 13 USER MANUAL - VMA1120 INSTALLATION MIXING AMPLIFIER Connections This unit uses the below connector types, for which the pin assignment must comply with the following specification. Always make sure to use good connectors and cables to ensure proper operation. Balanced connections are to be preferred over unbalanced connections where applicable and feasi- ble.
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Page 14: Technical Specifications
USER MANUAL - VMA1120 INSTALLATION MIXING AMPLIFIER Technical Specifications Power (RMS) ..1x120W@4 Ohms (LoZ) / @40Ohms (HiZ) AC IN (230V setting)......AC220-250V~ 50Hz Signal/Noise..........＞72dB (Line) AC IN (115V setting)......AC110-120V~ 60Hz Crosstalk Damping........＞65dB (Line) Power consumption.........max. 295W THD............＜0.05% (Line) Dimensions......W483.0×H88.0×D263.0mm Frequency response (LoZ w/o HPF)....20Hz – 20 kHz Weight..............8.16 kg Block Diagram -8dBu~+12dBu... -
Page 15: Maintenance And Warranty
USER MANUAL - VMA1120 INSTALLATION MIXING AMPLIFIER Maintenance and warranty While we have chosen the best components to make this product as rugged and reliable as possible, some parts in audio products (potentiometers, faders, switches) are subject to wear which is a matter of operation cycles, and not of time. While providing a full time-based warranty according to the country’s of purchase requirements on the function of the electronic circuitry, we hence have to limit the warranty on such electro-mechanical parts to 90 days from the date of purchase. -
Page 16: Ec Declaration Of Conformity
Burnham-on-Crouch, 30.06.2017 Place and date of issuing Authorized Signature www.hill-audio.com Hill Audio products are developed, manufactured and distributed by Adelto Technologies Unit 2A Springfield Road, Springfield Industrial Estate, Burnham-on-Crouch, Essex CM08UA, England www.adelto.com | sales@adelto.com...