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Summary of Contents for AMC MA 240
- Page 1 User MA 240 Manual Mixing ampliier...
- Page 2 RISK OF ELECTRIC SHOCK with liquids, such as vases, shall be placed on the apparatus. DO NOT OPEN USER MANUAL MA 240 Mixing ampliier...
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Page 3: Table Of Contents
Controls and connectors Introduction ..............................2 Connectors ..............................10 Features ................................2 Cable wiring examples ........................10-11 Operation Specifications Front panel ................................3 General specifications ..........................12 Rear panel................................4 Front panel operation ..........................5 Rear panel operation ..........................6-7 Output terminal ............................8-9 USER MANUAL MA 240 Mixing ampliier... -
Page 4: Introduction
fields of application of these high quality mixing amplifiers. FEATURES • Four balanced XLR mic/line inputs • Preampliier out and ampliier in connectors • First XLR input – priority input • DC 24V input connector for external power supply • Switchable phantom power on each XLR input • Tone control • AUX in and REC out connectors • Output level indicator USER MANUAL MA 240 Mixing ampliier... -
Page 5: Front Panel
Operation Front Panel 1. XLR inputs level control | 2. AUX input level control | 3. Tone control 4. Master volume 5. Output level indicator | 6. Power switch | 7. Power indicator USER MANUAL MA 240 Mixing ampliier... -
Page 6: Rear Panel
4. Output terminal | 7. Stereo RCA REC output | 8. Stereo RCA AUX input | 9. Balanced XLR inputs | 6. Input to power amplifier stage 10. Music on hold level control | 12. TEL input | | 14. TEL input gain control | 15. Priority control 11. Connector for MOH equipment 13. Gain and phantom power selector USER MANUAL MA 240 Mixing ampliier... -
Page 7: Front Panel Operation
The flat position is obtained when the knobs are set to middle position. Turn bass control knob (BASS) and treble tone control knob (TREBLE), respectively, POWER SWITCH Use this switch to power on or of the ampliier. The LED in the front panel lights clockwise to raise tone level by approximately +10 dB; turn counterclockwise to lower tone level by approximately -10 dB. up if the amplifier is powered. USER MANUAL MA 240 Mixing ampliier... -
Page 8: Rear Panel Operation
Output terminal is designed to connect audio line to amplifier. There are availa- ble 4 types of output: low impedance 4 Ω output, 25 V, 70 V and 100 V outputs PHANTOM power is activated the input gain sets to microphone level automati- for audio line. Please ind some connection examples below in this user manual. cally. Please note: Phantom power is switchable on each XLR input separately. First balanced XLR input have a priority against other inputs. PREAMPLIFIER OUTPUT This is line level output directly from device preampliier. Preampliier output and amplifier input are designed to insert signal processor such as equalizer or limiter. USER MANUAL MA 240 Mixing ampliier... - Page 9 This rotary knob allows adjusting gain level in the TEL input. PRIORITY Input 1 can be set as priority input. To set priority, please turn priority potenti- ometer to the right until the end. To deactivate priority turn to the left until the end. USER MANUAL MA 240 Mixing ampliier...
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Page 10: Output Terminal
COM 4Ω 25V 70V 100V COM 4Ω 25V 70V 100V COM 4Ω 25V 70V 100V 16 ohm 16 ohm 4 ohm 4 ohm Total impedance 8 ohm Total impedance 8 ohm Connecting the speakers to 70V output USER MANUAL MA 240 Mixing ampliier... -
Page 11: Output Terminal
100V 100V Connecting the speakers to 100V output Each of the ampliier channels (4 Ω, 25V, 70V, 100V) can run only one output configuration at the same time. Operating amplifiers using 4 ohm and 70 or 100 volt concurrently may cause damage to the amplifier or connected speakers. USER MANUAL MA 240 Mixing ampliier... -
Page 12: Connectors
Cable to unbalanced input from balanced output. TRS and TS connectors. TRS connector Cable to balanced input from unbalanced output. TS and TRS connectors. XLR male connector RCA connector Cable to unbalanced input from unbalanced output. TS connectors. XLR female connector USER MANUAL MA 240 Mixing ampliier... - Page 13 Cable to unbalanced input from RCA output. RCA and TS connectors. Cable to unbalanced input from balanced output. XLR and TS connectors. Cable to balanced input from RCA output. RCA and XLR connectors. Cable to balanced input from unbalanced output. TS and XLR connectors. Cable to balanced input from RCA output. RCA and TRS connectors. Cable to balanced input from balanced output. TRS and XLR connectors. Cable to RCA input from balanced output. RCA and XLR connectors. RCA cable. Cable to RCA input from balanced output. RCA and TRS connectors. USER MANUAL MA 240 Mixing ampliier...
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Page 14: General Specifications
80 Hz – 16 kHz The specifications are correct at the time of printing this manual. For improvement purposes, all specifications for this unit, including design and appearance, are subject to change without prior notice. USER MANUAL MA 240 Mixing ampliier...