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APART MA247 series Instruction Manual
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APART MA247 series Instruction Manual

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Summary of Contents for APART MA247 series

  • Page 1 MA247 series Instruction manual...
  • Page 3 MA247 series Instruction manual MA247 series...

  • Page 4: Safety First

    MIXING AMPLIFIERS Safety First ! • Caution: hot and sharp surfaces! This professional device needs to be installed by qualified personnel only. • Please check the packing for any kind of damage upon reception of the goods. If the packing is damaged, please contact your dealer before opening it.
  • Page 5 MA247 series Instruction manual • Turn the level controls on the amplifiers all the way down during power-up to prevent speaker damage if there are high signal levels at the inputs. • Do not connect the inputs / outputs of amplifiers or consoles...
  • Page 6 MIXING AMPLIFIERS Features The MA247 sets a new standard as a professional 6 zone PA mixing amplifier/preamplifier for commercial and industrial applications, either as a standalone unit or as the central device in an expandable, simple but clever paging system. The amplifier is equipped with 4 balanced mic/line inputs, each with adjustable gain and tone controls, up to 4 line level inputs and an emergency input.
  • Page 7 MA247 series Instruction manual be switched in parallel on this single input! Mic input 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 MA247 unit you can preset 2 paging groups to be paged with mic 2 –...

  • Page 8: Operation

    MIXING AMPLIFIERS Operation Front panel MA247 13 14 1. Zone 1 output level: this level control sets the output level to the zone 1 preamp output. 2. Zone 1 paging LED: this LED lights up when zone 1 is being paged.
  • Page 9 MA247 series Instruction manual 8. Zone 4 paging LED: this LED lights up when zone 4 is being paged. 9. Zone 4 level control: this control is used to preset the zone 4 level relative to the master level. 10. Zone 5 paging LED: this LED lights up when zone 5 is being paged.
  • Page 10 MIXING AMPLIFIERS 18. Music level control: turn this level knob to adjust the music level relative to the microphone signals. 19. Music muted by priority LED: this red LED lights up when the music is muted by any priority signal or priority contact. When this LED lights up, there are 24 VDC outputs available on the rear connector.
  • Page 11 MA247 series Instruction manual Important information • Zone 2 - 6 level controls are used to preset levels in different zones relative to the master level and to switch off certain zones temporarily. Zone 5 and 6 outputs are 70 Volt outputs,...
  • Page 12 MIXING AMPLIFIERS can result in music levels varying, depending on the speaker load variation. This is not a malfunction. This effect will increase depending on the speaker load variation. You can avoid such situations by powering the sensitive zones with an external amplifier connected to zone 1 line level output.
  • Page 13 MA247 series Instruction manual • Antenna connector (17) for AM wire antenna and FM antenna coax connector. • Please note that you must use a HF ground isolation transformer when connecting the FM antenna input to an active antenna or cable network! Tuner operation 1.
  • Page 14 MIXING AMPLIFIERS 5. Scan button: press to scan all memory locations: the tuner automatically selects the next memory location every 3 seconds. After a full scan, the tuner resumes to normal operation. You can interrupt the scan cycle by pressing the scan button during the memory scan.
  • Page 15 MA247 series Instruction manual MP3 operation 1. Display section: shows various parameters such as track number, folder number (if present), elapsed track time, MP3 mode… 2. Repeat: press this button to alternate between repeat 1 (repeat one track), repeat folder or repeat all. Repeat mode is shown in the display.
  • Page 16 MIXING AMPLIFIERS 6. Track <<: press once (shortly) to select the previous track, keep pushing to search backward in the track currently playing. 7. Track >>: press once (shortly) to select the next track, keep pushing to search forward in the track currently playing. 8.
  • Page 17 MA247 series Instruction manual 12. Mute button: press once to mute the MP3 player, press again to unmute. 13. Play /pause: press to start playback, press again to pause playback. 14. Stop: press to stop playback. 15. Power button: press to power on or off the MP3 player.
  • Page 18 MIXING AMPLIFIERS port for many reasons: the file system is not FAT32, the memory size exceeds the maximum specifications and the USB port’s supply current is insufficient to power the hard drive. Due to FAT32 file system limitations, maximum file size is limited to 4 Gb.
  • Page 19 MA247 series Instruction manual line. Use this output for your ‘silent’ zones. 3. Loudspeaker output connector zone 4: zone 4 is a 100 Volt speaker line output compatible with 100 Volt speaker lines. Com = speaker ground, 100 V = speaker plus connection.
  • Page 20 MIXING AMPLIFIERS LEVEL ADJUSTMENT PRIORITY SWITCH / VOX SLECTION JUMPER 8. Emergency input level: this is the only level control on the emergency input. The emergency signal bypasses all possible level controls in the MA247 unit. 9. Chime level: turn this knob to set the level of the two tone chime.
  • Page 21 MA247 series Instruction manual connector on mic 2, 3 or 4 to the microphone paging switch. This will enable zone group 2 paging (e.g.using our MICPAT-2 unit). The dipswitch settings are valid for mic 2 – 4 inputs only. Mic 1 is a higher priority mic and overrides these settings.
  • Page 22 MIXING AMPLIFIERS details. 16. Mic/line 4: this mic has lower priority than mic 3; see below for details. 17. Antenna inputs, MA247/MR only: connect an AM wire frame antenna on the push spring connectors and/or a suitable FM antenna on the coaxial connector. ALWAYS use a HF ground isolator transformer when connected to a cable network or active FM antenna! 18.
  • Page 23 MA247 series Instruction manual output to the integrated volume control and speaker switching circuitry. When a separate paging amplifier is in use, this wire bridge MUST be removed. Never use the 4 Ohm output together with any 50V, 70V, 100V or zone output.
  • Page 24 MIXING AMPLIFIERS 23. External paging amp pre out: the line level signal for the external paging amp is present on this balanced euroblock. 24. Paging mode switch: When pushed in, you can use an external paging amplifier. The external amplifier takes care of the paging messages.
  • Page 25 MA247 series Instruction manual the mic channel strip, see below. 31. mic/line 3 input, this mic has priority level 4, for details about the mic channel strip, see below. 32. mic/line 4 input, this mic has priority level 5, for details about the mic channel strip, see below.
  • Page 26 MIXING AMPLIFIERS Microphone connections • Status dipswitches: set to * when using a microphone with a push button(s) connected to the paging contact(s). Set to mix when you want the speech to be mixed with the music: this is useful for mics without pushbuttons or switches.
  • Page 27 MA247 series Instruction manual Unbalanced mic/line signal connection Unbalanced mic/line signal connection...
  • Page 28 MIXING AMPLIFIERS 1) This connector accepts balanced and unbalanced mic/line signals. For use with unbalanced mics or line level signals, connect the source GND to both GND and -, connect the unbalanced hot wire to +. This can be useful when connecting the receiver output from a wireless microphone.

  • Page 29: Priority Levels

    MA247 series Instruction manual • Paging switch connector: for selecting paging group 1 or paging group 2. MIC1 will always override the paging group preselection. • Paging group 1: connect GND to PG1 using a switch. Do not apply external Voltages to these contacts.
  • Page 30 MIXING AMPLIFIERS MICPAT-6 Connection • MICPAT-6 must be connected to the PAGING INPUT 1: connect the RJ45 plug to the selective paging station RJ45 connector. The second wire, the one with the blank leads must be connected to the SGL input euroblock: screen (black) to GND, white to -, red to +.
  • Page 31 MA247 series Instruction manual Speaker zone connections • Zone 1 amplifier connection (e.g. 480 Watts in zone 1): Connect the signal output zone 1 (balanced, on euroblock) to the external amplifier’s signal input, e.g. our PA2240BP in bridge mode, providing 480 Watts into 100 Volt. Zone 1 has independent line source selection and volume control.
  • Page 32 MIXING AMPLIFIERS can be used as zone 1 amplifier, e.g. to power the speakers in a warehouse or production facility, where music source and level requirements are different from the other zones, such as office areas, boardrooms, showrooms… Another possibility is to use the PA240P as paging amplifier, and use the PA2240P in bridge mode in zone 1, this offers you 480 Watts in zone 1.
  • Page 33 MA247 series Instruction manual • Notes: What about external volume controls? If you use additional external volume controls, such as our E-VOL series, be sure to connect the 24 Volt priority output from the MA247 to the volume control’s 24 V priority input. This will bypass the external volume controls, allowing paging messages to be heard at full power.
  • Page 34 MIXING AMPLIFIERS SETUP 5 zone individual 6 zone operation with volume control with independent zone 1 priority bypass source selection MA247(MR) only Paging mode switch Paging mode switch not pressed in, wire not pressed in, wire bridge in place (see bridge in place (see picture) picture).
  • Page 35 MA247 series Instruction manual selective paging selective paging without background music interruption MICPAT-6: per zone selectable. MICPAT-6: per zone selectable. MICPAT-2: preset paging groups using dipswitches for PG1 and/ MICPAT-2: preset paging groups or PG2. using dipswitches for PG1 and/ or PG2.
  • Page 36 MIXING AMPLIFIERS *Selective paging without an external paging amplifier will cause interruption of the BGM in the non-paged zones. In case a zone is being paged, the MA247(MR) will bypass the internal zone level control, causing the paging message to be heard at full level in the selected zone(s).
  • Page 37 MA247 series Instruction manual Zone 1 100Volt output 240 Watts maximum...

  • Page 38: Technical Specifications

    MIXING AMPLIFIERS Technical Specifications General specifications Output power rating RMS 240 Watt Frequency response 100 Volt out 40 - 25 kHz +1/-3dB Total harmonic distortion <0,3% @ -6dB, 1kHz Frequency response line output 20 - 30 kHz +1/-3dB zone 1 Bass tone control zone 2-6 +8/- 8dB @ 100Hz Treble tone control zone 2-6...
  • Page 39 MA247 series Instruction manual Source controls Music selector zone 2-6 Music selector zone 1 music level control zone 2-6 mic/ line 2-4 volume control all zones Master level control zone 2-6 Master level control zone 1 Chime level control (back panel)
  • Page 40 MIXING AMPLIFIERS Outputs Zone 1 Line level output, balanced 0 dB on euroblock connector Zone 2-6 100V outputs, zone 5 and 6 are limited to 70V compatible with 100V speakers. MAX 240 Watt total power in 100V (180 Watt max in 1 zone).
  • Page 41 MA247 series Instruction manual Inputs MIC/LINE 1 balanced input on euroblock Sensitivity mic/line variable 3mV to 2V Impedance 600Ω S/N mic/line >65dB/>80dB Phantom power Frequency response 80Hz - 15kHz (+1/-3dB) speech eq Muting activated by contact mutes inputs with lower priority by...
  • Page 42 MIXING AMPLIFIERS Muting Activated by contact or vox (se- lectable inside the unit). Emergency has highest priority and mutes all other inputs by more than 40 dB. The signal is also present on the preamp out. Aux 1 - 2 unbalanced stereo input on Sensitivity 500mV...
  • Page 43 FAT32 up to 32 gigabyte Apart-Audio general warranty conditions Apart-Audio warrants this product to be free of defects in material and workmanship for a period of one* year for parts and for a period of one* year for labor from the date of original end-user purchase.
  • Page 44 MIXING AMPLIFIERS All warranty claims must be accompanied by a detailed description of the problem. All returns must be sent to Apart-Audio or an authorized Apart-Audio repair centre, postage prepaid, insured and properly packaged. Proof of purchase must be presented in the form of a valid invoice or some other positive proof that the product is within the warranty period.
  • Page 45 MA247 series Instruction manual Notes...
  • Page 46 MIXING AMPLIFIERS...
  • Page 47 MA247 series Instruction manual...
  • Page 48 Audioprof nv Industriepark Brechtsebaan 8 bus 1 2900 Schoten - Belgium Company names, product names and trademarks are property of their respective owners. Apart-Audio specifications are subject to change without notice.

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Ma247mr