User manual APART MA246-MR DATASHEET

[. . . ] Mixing Amplifier MA246/-R/-MR APart introduces the MA246: an amplifier that brings a new dimension to 100 V zone mixing amplifiers. This 6-zone unit can be used stand-alone, or as the core of an expandable sound system. [. . . ] 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 MA246, you can preset 2 paging groups to be paged with mic 2 ­ 4. Further the MA246 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 MA246. 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 MA246 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. WWW. APART-AUDIO. COM INFO@APART-AUDIO. COM 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. [. . . ] Minimum load impedance all zones summed: 41, 66 ohms Zone 2-6 outputs on euroblock connector, amplifier power can be supplied by internal or external amp (selectable with paging mode switch at the back panel) Separate speaker out: Rec out (MA246R/MR only): Tuner out (MA246MR only): Pre amp out zone 2-6: Phantom power: Pre amp out zone1: Paging amp out: Priority out: Chime: 50V/70V/100V and low impedance on euroblock 1V 300 mV 1V 18 VDC 1 V balanced on euroblock/100 ohm output impedance 2 V balanced on euroblock/100 ohm output impedance 24VDC, max 0, 6A 2 tone chime activated by contact closure WWW. APART-AUDIO. COM INFO@APART-AUDIO. COM INPUTS MIC/LINE 1 Sensitivity mic/line: Impedance: S/N mic/line: Phantom power: Frequency response: Muting activated by contact: balanced input on euroblock variable 3mV to 2V 600 ohm >65dB/>80dB NA 80Hz - 15 kHz (+1/-3dB) speech eq mutes inputs with lower priority by more than 40dB MIC/LINE 2-4 balanced inputs on euroblock Sensitivity mic/line: Impedance: S/N mic/line: Phantom power: Frequency response: Muting activated by contact: variable 1, 5mV to 200mV 600 ohm >65dB/>80dB 18 VDC 80Hz - 15kHz (+1/-3dB) speech eq > 40dB; priority according to priority table EMERGENCY INPUT transformer coupled balanced input on euroblock Sensitivity: 1V Impedance: 600 ohm S/N: >80dB Frequency response: 100Hz - 20 kHz (+1/-3dB) Muting: Activated by contact or vox (selectable 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 RCA Sensitivity: Impedance: S/N: Frequency response: 500mV 22 kilo ohm >80dB 40 - 25 kHz +1/-3dB, Signal is internally mixed to mono AUX 3 - 4 unbalanced mono input on RCA Sensitivity: Impedance: S/N : Frequency response: 500mV 22 kilo ohm >80dB 40 - 25 kHz +1/-3dB WWW. APART-AUDIO. COM INFO@APART-AUDIO. COM TUNER (MA246R/MR only) Tuning range FM band: Tuning range AM band: Aerial terminal AM: Aerial terminal FM: Sensitivity FM: S/N FM band: Sensitivity AM: Harmonic distortion FM band: Frequency response FM band: Number of presets: 87, 5 - 108 MHz (100 kHz/50 kHz tuning step) 531 - 1602 kHz (9 kHz tuning step) AM antenna spring lock terminal 75 ohm coax connector 1 µV/75 ohm at 26 dB S/N > 74 dB at 40 kHz deviation 40 µV (26 dB S/N) < 0, 1% at preamp and tuner output 30 Hz - 15 kHz (+1/-3 dB) at preamp and tuner output 10 FM, 10 AM CD/MP3/WMA (MA246MR only) Frequency response: Harmonic distortion: 20 Hz - 20 kHz (+0/-1 dB) at preamp output < 0, 01% at preamp output Supported file types CD/CDR: PCM 16 bit/44, 1 kHz, MP3 32 - 320 kbps, variable bit rate Supported file types USB/CARD: MP3 32 - 320 kbps, variable bit rate, WMA File system/capacity USB/CARD: FAT32 up to 32 gigabyte WWW. APART-AUDIO. COM INFO@APART-AUDIO. COM [. . . ]