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The performance of a lifetime
Owner's Manual
MOON 870A
Power Amplifier

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Summary of Contents for Simaudio MOON 870A

  • Page 1 The performance of a lifetime Owner’s Manual MOON 870A Power Amplifier...
  • Page 2 To prevent the risk of equipment damage or personal harm, use only Class 2 rated loudspeaker wire properly terminated and connected securely to the binding posts. simaudio.com Simaudio Ltd 1345 Newton Road, Boucherville, Québec J4B 5H2 CANADA Date Code: 20182106...
  • Page 3: Table Of Contents

    IMPORTANT SAFETY INSTRUCTIONS INTRODUCTION DESIGN FEATURES UNPACKING INSTALLATION & PLACEMENT REAR PANEL LAYOUT CONNECTING THE UNIT BALANCED OPERATION BRIDGED-MONO OPERATION OPERATING THE UNIT REMOTE OPERATION SPECIFICATIONS...
  • Page 4: Important Safety Instructions

    M O O N b y S i m a u d i o Important Safety Instructions Read these instructions. 10. Protect the power cord from being walked on or pinched, particularly at plugs, convenience Keep these instructions. receptacles, and the point where they exit Heed all warnings.
  • Page 5 The lightning flash with the arrowhead symbol, within an equilateral triangle, is intended to alert the user to the presence of uninsulated “dangerous voltage” within the product’s enclosure that may be of sufficient magnitude to constitute a risk of electric shock to persons. The exclamation point within an equilateral triangle is intended to alert the user to the presence of important operating and maintenance (servicing) instructions in the literature accompanying the appliance...
  • Page 6: Introduction

    Before setting up your new MOON 870A, we encourage you to please read this manual thoroughly to properly acquaint yourself with its features. We hope you enjoy listening to the MOON 870A Dual-Mono power amplifier as much as the pride we have taken in creating this fine audio product.
  • Page 8: Design Features

    M O O N b y S i m a u d i o Design Features Your MOON 870A Dual-Mono Power Amplifier incorporates many significant design features to achieve its “world-class” level of performance. This is an abbreviated list of the more important features: Proprietary “Lynx”...
  • Page 10: Unpacking

    Serial Number Installation & Placement The MOON 870A Dual-Mono power amplifier is both powerful and heavy. It requires reasonable ventilation to maintain an optimum and consistent operating temperature, especially since it will radiate heat when driven hard. Consequently, it should be placed in a location with empty space around it for proper heat dissipation.
  • Page 11: Rear Panel Layout

    Rear Panel Layout Figure 1: 870A Rear panel The rear panel will look similar to Figure 1 (above). Each channel has one balanced (differential) input on an XLR connector and one unbalanced (single-ended) input on a RCA connector. There is no switch to toggle from balanced mode to single-ended mode.
  • Page 12: Connecting The Unit

    –5 Volts. When these two inverted signals on a length). balanced line are input into a differential power amplifier such as the MOON 870A, any noise Connect your speaker, with the cable of picked up by the interconnect will be eliminated your choice, to the 870A’s speaker binding...
  • Page 13: Bridged-Mono Operation

    Bridged-Mono Operation If wish to operate the MOON 870A Dual-Mono As well, you must use the positive terminal of Power Amplifier as a monoblock amplifier, it can be each output binding post (exactly as in figure 3) converted to bridged mode without any complex for the loudspeaker connection.
  • Page 14: Operating The Unit

    Unknown Problem LED blinks 6 times Prior to turning the amplifier on for the first Your MOON 870A is a “smart” power amplifier time, make sure that every cable is properly equipped with a self-diagnostic system that will connected to avoid any problems. Then turn on automatically shut itself down when it detects your preamplifier connected to the 870A.
  • Page 15: Remote Operation

    Remote Operation Figure 4: Remote Operation with 12V Trigger In figure 4 we have a 740P Preamplifier and 870A amplifier connected together via their respective 12V triggers; The 12V trigger output on the 740P is connected to the 12V trigger input on the 870A (using a 1/8” mini-jack cable).
  • Page 16: Specifications

    M O O N b y S i m a u d i o Specifications Configuration Fully balanced differential, dual-mono Power Supply Transformers 2 x 1.3kVA Power Supply Capacitance 240,000µF Class Of Operation A/AB Input Impedance 47,500Ω Input Sensitivity 1400mV Output Device Type MOON Bipolars –...
  • Page 17 If you require the IR or RS-232 codes for the MOON 870A, please visit the “Contact Us” section in the support page on our website at www.simaudio.com.
  • Page 18 Simaudio Ltd. 1345 Newton Rd. Boucherville, Quebec, J4B 5H2 CANADA T. 450 449-2212...

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