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User's Manual
APM120/APM160
POWERED MIXER
www.altoproaudio.com
Version 1.0 JUNE 2008
English

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Summary of Contents for Alto APM10

  • Page 1 User's Manual APM120/APM160 POWERED MIXER www.altoproaudio.com Version 1.0 JUNE 2008 English...
  • Page 2: Important Safety Instruction

    IMPORTANT SAFETY INSTRUCTION CAUTION WARNING To reduce the risk of electric shock RISK OF ELECTRIC SHOCK and fire, do not expose this equipment DO NOT OPEN to moisture or rain. TO REDUCE THE RISK OF ELECTRIC SHOCK PLEASE DO NOT REMOVE THE COVER OR Dispose of this product should THE BACK PANEL OF THIS EQUIPMENT.
  • Page 3: In This Manual

    IN THIS MANUAL: 1. INTRODUCTION................1 2. FEATURES..................1 3. QUICK START..................3 4. CONTROL ELEMENTS..............5 5. INSTALLATION & CONNECTION............15 6. PRESET LIST.................19 7. BLOCK DIAGRAM................20 8. TECHNICAL SPECIFICATIONS ............22 9. WARRANTY..................24 1. INTRODUCTION Thank you for your purchasing of the L TO APM120 12-channel (16-channel for APM 160) power mixer with 24-bit digital multi-effect built-in.
  • Page 4 PHANTOM PHANTOM +48V (CH 1-4) +48V (CH 5-8) MIC 1 MIC 2 MIC 3 MIC 4 MIC 5 MIC 6 MIC 7 MIC 8 AUX SEND P. AMP INPUT ST OUT ST SUB OUT MONO OUT 2-TRACK IN/OUT LAMP (12V/0.5A) AUX SEND TAPE IN TAPE OUT LINE IN...
  • Page 5: Quick Start

    3. QUICK START This is the fastest way to get something out from your APM Series, if you have a keyboard and a microphone. a. Plug the microphone into Channel 1 MIC IN. b. Turn down AUX and LEVEL controls on the input channel. c.
  • Page 6 HOOK SMALL GIG HOOKUP DIAGRAM CD PLAYER 1 PASSIVE SPEAKERS STAGE MONITORS MIC1 MIC2 MIC3 MIC4 WIRELESS MICROPHONE PHANTOM PHANTOM +48V (CH 1-4) +48V (CH 5-8) MIC 1 MIC 2 MIC 3 MIC 4 MIC 5 MIC 6 MIC 7 MIC 8 P.
  • Page 7: Control Elements

    4. CONTROL ELEMENTS Mono and Stereo Input Channels 1 The MONO MIC/LINE Channels Your APM120 is equipped with 8 (12 for APM160) low-noise microphone preamplifiers with optional phantom power, 45 dB of Gain and over 115 dB of S/N ratio. You can connect almost any type of microphone. Dynamic microphones do not need phantom power.
  • Page 8: Level Set Led

    4. CONTROL ELEMENTS 5 MONO IN GAIN This control is provided with 2 different indications: One is for the MIC and the other for LINE levels. When you use a microphone, you shall read the MIC ring (0~-45dB); when you use a line level instrument, you shall read the LINE ring (+15~-30dB).
  • Page 9 4. CONTROL ELEMENTS 9 HI If you turn this control up, you will boost all the frequencies above 12 kHz (shelving filter). You will add transparency to vocals and guitar and also make cymbals crispier. Turn the control down to cut all frequencies above 12 kHz. In such way you can reduce Sibilances of human voice or reduce the hiss of a Tape player.
  • Page 10 4. CONTROL ELEMENTS 15 PAN/BAL Control Abbreviation of PANORAMA control for mono channels, or the stereo channels, always says, BALANCE control. Keep this control in center position, then the signal will be positioned in the middle of stage. 16 MUTE Switch Each channel is equipped with the MUTE switch.
  • Page 11 4. CONTROL ELEMENTS AUX SEND P. AMP INPUT ST OUT ST SUB OUT MONO OUT LAMP (12V/0.5A) AUX SEND FOOT SW DFX1 SEND ST SUB IN ST SUB IN ST SUB IN (MONO) (MONO) (MONO) DFX2 SEND PHONES 21 AUX/DFX SENDS Connectors These 1/4"...
  • Page 12: Stereo Bus

    4. CONTROL ELEMENTS 28 PHONES Jack This jack will be used to send the signal to a headphone or to a pair of powered studio monitors. 29 LAMP This lovable LAMP is very convenient for your operation, it is located in the top right corner of the front panel, and provides the 12V socket that can drive standard BNC-type lamp.
  • Page 13: Power Led

    4. CONTROL ELEMENTS 35 POWER LED The LED indicates when the power is switched on. POWER 36 PHONES Control This control is used to adjust the level of PHONES PHONES output, which can be varied from - to +10. OFF ON 37 LPF (MONO OUT) (MONO OUT) - LPF ON/OFF Switch...
  • Page 14 3. CONTROL ELEMENTS 4. CONTROL ELEMENTS 40 AFL Switch When this switch is on, the output signal that passes through the corresponding fader is sent to the jack. 41 PFL Switch When this switch is engaged, the signal at the point before the ST OUT control fader is sent to the PHONE jack.
  • Page 15: Stereo Graphic Eq

    4. CONTROL ELEMENTS 3. CONTROL ELEMENTS 47 STEREO GRAPHIC EQ Each one of these faders will boost or attenuate (+/-15dB) the selected frequency at a preset bandwidth. When all the faders are in the centre position, the output of the equalizer is flat response. 48 POWER AMP.
  • Page 16: Rear Panel

    4. CONTROL ELEMENTS REAR PANEL CAUTION CAUTTION MODEL RISK OF ELECTRIC SHOCK LETHAL VOLTAGES MAY APPEAR AT OUTPUT DO NOT OPEN TERMINALS CLASS 1 WIRING IS REOUIRED WARNING: SHOCK HAZARD DO NOT OPEN SPEAKERS AVIS: RISQUE DE CHOC ELECTRIQUE NE PAS OUVRIR SERIAL BRIDGE CAUTION:...
  • Page 17: Installation And Connection

    5. INSTALLATION AND CONNECTION Ok, you have got to this point and you are now in the position to successfully operate your APM Series. However , we advise you to read the following section carefully to be the real master of your own mix. Not paying enough attention to the input signal level, the routing of the signal and the assignment of the signal will result in unwanted distortion, a corrupted signal or no sound at all.
  • Page 18 5. INSTALLATION AND CONNECTION Ring=Return Signal Sleeve Ring Strain Clamp Tip=Send Signal Sleeve=Ground/Screen Use for Insert Points 1/4" Stereo (TRS) Jack Plug 2=Hot(+) 2=Hot(+) 1=Ground/Screen 1=Ground/Screen 3=Cold(-) 3=Cold(-) Use for Balanced Mic Inputs Use for Main output (For unbalanced use, leave pin3 unconnected) (For unbalanced use, connect pin 1 to 3) 3-pin XLR Male Plug 3-pin XLR Line Socket...
  • Page 19 5. INSTALLATION AND CONNECTION And now some tips how to use the AMPLIFIER MODE switch Main Speaker SPEAKERS BRIDGE MAIN L MAIN R AUX 1 MONO BRIDGE MAX. OUTPUT 1000W/8 (A B,BRIDGE) 1 and 2 = 8 - 16 /SPEAKER MAX.
  • Page 20 5. INSTALLATION AND CONNECTION Main Speaker SPEAKERS BRIDGE MAIN L MAIN R AUX 1 MONO BRIDGE MAX. OUTPUT 1000W/8 (A B,BRIDGE) 1 and 2 = 8 - 16 /SPEAKER AMP MODE MAX. OUTPUT 500W/4 (A,B) 1 or 2 = 4 - 8 /SPEAKER CLASS 2 WIRING WAY BE USED.
  • Page 21: Preset List

    6. PRESET LIST Controllable Parameter Preset Description Parameter Variable range Decay time 0.8~1.1s VOCAL1 Simulate a room with small delay time. Pre-delay 0~79ms Decay time 0.8~2.5s VOCAL2 Simulate a small space with slight decay time 0~79ms Pre-delay Decay time 3.6~5.4s LARGE HALL Simulate a large acoustic space of the sound.
  • Page 22: Block Diagram

    7. BLOCK DIAGRAM...
  • Page 23 7. BLOCK DIAGRAM...
  • Page 24: Technical Specification

    8. TECHNICAL SPECIFICATION Mono input channels Microphone input electronically balanced, discrete input configuration Frequency response 10 Hz to 55 kHz, +/ 3 dB Distortion (THD & N) 0.005% at +4 dBu, 1 kHz Gain 0 dB to 45 dB (MIC) SNR (Signal to Noise Ratio) 115 dB Line input...
  • Page 25 Fuse APM120 100 ~ 120 V : 10 A 210 ~ 240 V : 6.3 A APM160 100 ~ 120 V : 12 A 210 ~ 240 V : 6.3 A Physical Dimension (W D H) APM120 565 450 145 mm APM160 565 555 145 mm Weight...
  • Page 26: Warranty Registration Card

    9. WARRANTY 1. WARRANTY REGISTRATION CARD To obtain Warranty Service, the buyer should first fill out and return the enclosed Warranty Registration Card within 10 days of the Purchase Date. All the information presented in this Warranty Registration Card gives the manufacturer a better understanding of the sales status, so as to provide a more effective and efficient after-sales warranty service.
  • Page 27 NO. 1, Lane 17, Sec. 2, Han Shi West Road, Taichung 40151, Taiwan www.altoproaudio.com Tel: 886-4-22313737 email: info@altoproaudio.com Fax: 886-4-22346757 All rights reserved to ALTO. All features and content might be changed without prior notice. Any photocopy, translation, or reproduction of part of this manual without written permission is forbidden. Copyright...

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Apm160Apm120

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