Less is more. As the CD is losing more and more ground, there is no more CD-player in the MA247MR. No moving parts, higher reliability. Something of a legend already, this 240 Wattss, 6-zone 100V amplifier has been improved with 24V dedicated priority output per zone and folder selectable playing on the MP3 media player, a guarantee for more listening and operating comfort. The combination with the trusted functionalities of its predecessor makes the MA247MR your selective 100V paging amplifier of choice. It can be used stand-alone, or as the core of an expandable sound system.
Because the MA247MR offers independent source selection for zones 1 and 2-6, it can be used as a multi-source zoning system. Zone 1 is a fully independent pre-amplified zone and allows the installer to use an external power amplifier to amplify it. It is especially useful for large areas that require many speakers, like factory production areas. This has the particular advantage that the installer can use the external amplifier to suit his power needs for that particular zone.
Zones 2 to 6 can be individually volume controlled using the integrated speaker volume controls. Zones number 5 and 6 are 70-Volts outputs, these are compatible with 100-Volts speakers, but by nature, these outputs will have a slightly reduced output level, meant for the ‘quiet’ zones in a multi-zone system.
MA247MR has four balanced inputs on Euroblock. Microphone input 1 is optimized to be used with our MICPAT-6, a selective 6-zone paging microphone, designed especially for use with the MA247MR. This microphone is the master microphone. Maximum five of these microphones can be switched in parallel on this single input!
Microphone inputs 2 - 4 are designed to be used with our MICPAT-2 (2 zone groups) microphone or any other microphone depending on the application. On the MA247MR, you can preset 2 paging groups to be paged with mic 2 – 4.
Further the MA247MR is equipped with 4 line inputs that can be selected via a rotary switch. As said before, Zone 1 can have a different line source selected compared to zones 2 – 6.
There are 6 different priority levels on the MA247MR. When any priority has been activated, integrated 24VDC supply output (max 0.6A) can switch priority relays of loudspeaker attenuators or other devices.
In case of mains power failure, the MA247MR can be powered via the 24V DC power input. If an external 24V UPS is connected to the unit, the amplifier will automatically switch to it.
Professional installers will also appreciate the possibility to use an external amplifier as a paging amp. Suppose zones 2 and 3 should not receive paging messages, meaning there should always be background music. In this situation, the installer can use an external amplifier for paging. When a paging call is sent out, zones 2 and 3 will stay connected to the internal amplifier and will continue to receive background music. The other zones will hear the paging message. The MA247MR will disconnect these zones from the internal amp and will send the paging message to the external amp. When paging is finished, these zones will be switched back automatically to the internal amp.
When required, it is even possible to use a 2-channel amplifier (e.g. the PA2240BP) as external amplifier, with one channel assigned to power zone 1 of the MA247MR, while the second channel of the external amplifier is used to power paging messages.
This amplifier is also available as amplifier only (MA247).