The Cloud VMA120 and VMA240 are cost-effective mixer-amplifiers for use in all types of commercial premises. They have been designed to be as simple to install and operate as possible, but offer a useful range of features and configuration options. The units are mono power amplifiers combined with a simple mixer stage. The two models are identical in terms of facilities, and differ only in the maximum power output available – 120 W or 240 W respectively. They may be used to drive either low-impedance loudspeakers directly (4 ohms minimum) or 25/70/100 V-line loudspeaker distribution systems. The two different types of speaker system cannot be driven simultaneously. A highpass filter, selectable by internal jumper, minimises the effect of transformer saturation at low frequencies when driving 25/70/100 V-line systems. The units have four stereo line inputs (typically for connection of music sources), including an AUX input in the form of a 3.5 mm jack socket on the front panel to permit the easy connection of laptops, tablets and similar devices. Two balanced microphone inputs are also provided: phantom power is available at each, selectable by internal jumper. A high-pass filter for each mic input may also be selected by internal jumper: this reduces the effects of handling and breath noise. All mic and line inputs (except the AUX input) have a preset-type gain control adjacent to the input connectors on the rear panel. The front panel has rotary controls for line input selection, music level, the level of each mic input, and LF/HF EQ adjustment for the summed mic inputs. Two switches enable priority options: one allows the mic inputs to have priority over music sources to permit announcements, the other gives one line input priority over all others: this is useful for connecting a jukebox or message store, for example. Two further switches enable/disable each mic input. The front panel controls also include a master level control and HF/LF EQ adjustment for the main output. The rear panel has a music mute control input which can be used to mute all music sources in an emergency: an internal jumper allows this to also mute the mic inputs if wished. There is also a balanced auxiliary output to allow additional power amplifiers to be slaved.
Cloud Electronics VMA240 Features
• Power output: 240 W/channel
• Outputs suitable for either low-impedance (min. 4 ohm) or 25/70/100 V-line systems
• Four stereo unbalanced line inputs (3 x RCA jack pairs, 1 x 3.5 mm TRS jack on front panel)
• Rear panel line inputs have individual gain controls
• Two balanced mic inputs (1 x multipin connector, 1 x ¼” TRS jack), with individual preset gain controls
• Front panel controls for mic and music levels, line input selection, mic EQ, master level and EQ
• Mic input mute switches on front panel
• Line 1 priority, enabled by front panel switch
• Mic-over-music priority, enabled by front panel switch
• 15 V phantom power available at either mic input
• 100 Hz high-pass filter on each mic input
• 70 Hz high-pass filter in output stage, for use with 25/70/100 V-line systems
• Fixed limiter – prevents clipping
• Front panel LED bargraph – indicates output signal level
• Over-temperature and output DC protection
• 230 V or 115 V operation
• Forced-air cooling
