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LTO PBM8.250/ MKII Owner's Manual

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R
LTO
OWNER'S MANUAL
PBM8.250/
8.500
MKII
POWERED BOX MIXER
www.altoproaudio.com
Version 2.0 NOV. 2007
English

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  • Page 1 OWNER'S MANUAL PBM8.250/ 8.500 MKII POWERED BOX MIXER www.altoproaudio.com Version 2.0 NOV. 2007 English...
  • Page 2 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..................4 4. CONTROL ELEMENTS..............5 5. INSTALLATION & CONNECTION............12 6. PRESET LIST.................16 7. BLOCK DIAGRAM................17 8. TECHNICAL SPECIFICATIONS............18 9. WARRANTY..................20 1. INTRODUCTION Thank you for purchasing the PBM8 8 channel powered mixer with 24-bit digital multi-effect built-in.
  • Page 4 -20 dB PBM8.250 -20 dB -20 dB -20 dB -20 dB -20 dB -20 dB -20 dB PRESETS HIGH HIGH HIGH HIGH HIGH HIGH HIGH HIGH OPERATING 12KHz 12KHz 12KHz 12KHz 12KHz 12KHz 12KHz 12KHz CLIP -15dB +15dB -15dB +15dB -15dB +15dB -15dB...

  • Page 5: Quick Start

    3. QUICK START This is the fastest way to get something out from your PBM8, 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: Computer Set-Up Diagram

    HOOK SMALL CLUB -20 dB PBM8.250 -20 dB -20 dB -20 dB -20 dB -20 dB -20 dB -20 dB PRESETS HIGH HIGH HIGH HIGH HIGH HIGH HIGH HIGH OPERATING 12KHz 12KHz 12KHz 12KHz 12KHz 12KHz 12KHz 12KHz CLIP -15dB +15dB -15dB +15dB...

  • Page 7: Level Control

    4. CONTROL ELEMENTS 3. CONTROL ELEMENTS 1 MIC/LINE MONO INPUT (1 to 6) Your PBM8 is equipped with 6 low-noise microphone CH 6 CH 7-8 preamplifiers with optional phantom power, 50 dB of LINE IN (MONO) Gain and over 90 dB of S/N ratio. You can connect (bal.) almost any type of microphone.
  • Page 8 3. CONTROL ELEMENTS 4. CONTROL ELEMENTS 5 DSP/FX The AUX2 control is configured as POST-FADER, so the audio signal will be affected by channel LEVEL control and sent to the resident digital multi-effect. Via the AUX2 OUT jack, the AUX2 signal can be sent to an external effects device, and in such case the resident digital multi-effects will be automatically disconnected.

  • Page 9: Master Section

    4. CONTROL ELEMENTS 3. CONTROL ELEMENTS MASTER SECTION OPERATING MONITOR LEVEL +10dB FEEDBACK TERMINATOR MAIN LEVEL +10dB FEEDBACK TERMINATOR 11 STEREO GRAPHIC EQ Your PBM8 is equipped with two graphic EQs with 9 adjustable bands each; one is for the MAIN MIX and the other for the MONITOR MIX. Via the faders, you can boost or cut the selected frequency by +/-15 dB at the indicated frequencies.
  • Page 10 3. CONTROL ELEMENTS 4. CONTROL ELEMENTS 15 MONITOR LEVEL CONTROL This control is used to adjust the level of the monitor output. 16 MAIN MIX LEVEL CONTROL This control is used to adjust the overall volume of the main mix output. 17 MAIN MIX LEVEL LED DISPLAY This LED display will show you the Main Mix output level.
  • Page 11 3. CONTROL ELEMENTS 4. CONTROL ELEMENTS 21 MONITOR OUT JACK Use this balanced MONITOR jack to connect the input of an external amplifier or active monitor speaker. 22 MAIN OUT JACKS These jacks are used to output the Main Mix signal to an external amplifier or active speaker.

  • Page 12: Dsp Section

    4. CONTROL ELEMENTS 3. CONTROL ELEMENTS DSP SECTION There is a powerful 24-bit/256 preset digital multi-effects included in your PBM8. Effects include reverbs, chorus, flanger, delay and combinations of the above. 29 PRESETS Control This knob will select one of the 16 Factory Presets. PRESETS 30 DSP MUTE Button This button is used to activate/deactivate the digital...

  • Page 13: Rear Panel

    3. CONTROL ELEMENTS 4. CONTROL ELEMENTS REAR PANEL POW ERED MIXER MODEL: PBM8.250 MK LEFT/MONO MAIN POW ER OUTPUT 2 CAUTION RISK OF ELECTRIC SHOCK DO NOT OPEN WARNING: SHOCK HAZARD - DO NOT OPEN MODEL AVIS: RISQUE DE CHOC ELECTRIQUE - NE PAS OUVRIR CAUTION: SERIAL...

  • Page 14: 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 PBM8. However , we advise you to read carefully the following section to be the real master of your own mix. Not paying attention enough to the input signal level, to 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 15 5. INSTALLATION AND CONNECTION 3. CONTROL ELEMENTS 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...
  • Page 16 5. INSTALLATION AND CONNECTION 3. CONTROL ELEMENTS And now some tips how to use the AMPLIFIER MODE switch Main Speaker LEFT/ MONO MAIN AMPLIFIER OUTPUT 2 MODE OUTPUT 2 OUTPUT 1 RIGHT/ MONITOR BRIDGE MODE OUTPUT 1 BRIDGE MAIN MAIN BRIDGE OUTPUT 2 MAIN...
  • Page 17 3. CONTROL ELEMENTS 5. INSTALLATION AND CONNECTION Main Speaker LEFT/ MONO MAIN OUTPUT 2 AMPLIFIER MODE OUTPUT 2 OUTPUT 1 RIGHT/ MONITOR BRIDGE MODE OUTPUT 1 BRIDGE OUTPUT 2 MAIN MAIN BRIDGE MAIN MONITOR Bridge Mode With the AMPLIFIER MODE switch in BRIDGE position, the two power amplifiers in your PBM8 drive together a single speaker cabinet with the sum of the power of the 2 amps.

  • Page 18: 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 19: Block Diagram

    7. BLOCK DIAGRAM...
  • Page 20 6. TECHNICAL SPECIFICATIONS 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) 0.006% at +4 dBu, 1 kHz Gain 50 dB (MIC) SNR (Signal to Noise Ratio) >90 dB Line input...
  • Page 21 6. TECHNICAL SPECIFICATIONS 8. TECHNICAL SPECIFICATION Fuse PBM8.250 MKII 100 ~ 120V : T6.3AL 210 ~ 240V : T3.15AL PBM8.500 MKII 100 ~ 120V : T10AL 210 ~ 240V : T6.3AL Physical Dimension (W D H) 310 mm (8.66" 12.20" 21.65") Weight PBM8.250 MKII (Net) : 13.2kg (28.70lb) (Gross) : 15.93kg (35.11lb)

  • Page 22: 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 23 SEIKAKU TECHNICAL GROUP LIMITED NO. 1, Lane 17, Sec. 2, Han Shi West Road, Taichung 40151, Taiwan http://www.altoproaudio.com Tel: 886-4-22313737 email: alto@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.

This manual is also suitable for:

Pbm8.500 mkii

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