The VM-2240 is a multifunctional amplifier that can be mounted in an EIA-Standard equipment rack (3-unit size). The unit comes with 4 audio inputs including the background music input, and the speaker output section which has an internal attenuator and 5-zone selector. Toa vm2240 Hi, Found problems with toa vm2240. The unit is somewhat intermittent. After power ON the unit will go test cycle and indicate fault (blinking light. However at times the unit go ready without any fault but connection of microphone to the unit is irregular at this time, unit will work fine once the mic get connected. Can you help please. The VM-2240 is a multifunctional amplifier that can be mounted in an EIA-Standard equipment rack (3-unit size). The unit comes with 4 audio inputs including the background music input, and the speaker output section which has an internal attenuator and 5-zone selector. The TOA VM-3000 Series is a highly cost-effective combined emergency voice alarm system and public address system. The VM-3000 Series is ideal for small and medium-sized applications, such as shopping centres, retail stores, nursing homes, schools and fitness clubs. The VM-2240 is a multifunctional amplifier that can be mounted in an EIA-Standard equipment rack (3-unit size). The unit comes with 4 audio inputs including the background music input, and the speaker output section which has an internal attenuator and 5-zone selector. amplifier shall be TOA model A-2240. P-2240 (CE/CE-GB version) Booster Amplifier (240-Watt) The booster amplifier shall operate on AC mains or 24 V DC power, and shall control and mix 1 balanced (screw terminal) Line in and 1 unbalanced (screw terminal) 100 V Line inputs. Outputs shall be balanced Loop out and balanced high and low The VM-2240 is a multifunctional amplifier that can be mounted in an EIA-Standard equipment rack (3-unit size). The unit comes with 4 audio inputs including the background music input, and the speaker output section which ha