Herron Audio M1A Owner's Manual

Power amplifier

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Owner's Manual
M1A
Power
Amplifier

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Table of Contents
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Summary of Contents for Herron Audio M1A

  • Page 1 Owner’s Manual Power Amplifier...
  • Page 2: Table Of Contents

    M1A Power Amplifier Owners Manual Table of Contents General Safety, Installation, and Operation Instructions Important Safety Instructions Warning Important (UK only) Instructions The Amplifier Front Panel Features Rear Panel Features Installation Troubleshooting Technical Specifications FCC Notice Re-cycling RoHS Compliance ©2013 Herron Audio Division of Herron Engineering, Inc.
  • Page 3: General Safety, Installation

    M1A Power Amplifier Owners Manual General Safety, Installation, and Operation Instructions It is important to read this document before attempting to use this product. Pay close attention to safety instructions. Appears on the component to indicate the presence of uninsulated, dangerous voltages inside the enclosure – volt- ages that may be sufficient to constitute a risk of shock.
  • Page 4: Important Safety Instructions

    M1A Power Amplifier Owners Manual Important Safety Instructions Read these instructions Keep these instructions. Heed all warnings. Follow all instructions. Do not use this apparatus near water. Clean only with a dry cloth. Great care and attention has gone into the materials chosen to produce the product. A gentle wipe with a dry, clean cloth is all that is required to remove any dust.
  • Page 5 M1A Power Amplifier Owners Manual Use only with the cart, stand, tripod, bracket, or table specified by the manufacturer or sold with the apparatus. When a cart is used, use caution when moving the cart/ apparatus combination to avoid injury or tip over.
  • Page 6: Warning

    M1A Power Amplifier Owners Manual Warning • TO PREVENT FIRE OR SHOCK HAZARD, DO NOT USE THIS PLUG WITH AN EXTENSION CORD, RECEPTACLE OR OTHER OUTLET UNLESS THE BLADES CAN BE FULLY INSERTED TO PREVENT BLADE EXPOSURE • TO PREVENT FIRE OR SHOCK HAZARD, DO NOT EXPOSE THIS APPLIANCE TO RAIN OR MOISTURE •...
  • Page 7: Important (Uk Only) Instructions

    If connecting to a BS1363 plug, a 13 amp fuse must be used. WARNING: ANY MODIFICATIONS TO THIS PRODUCT NOT EXPRESSLY APPROVED BY HERRON AUDIO WHO IS THE PARTY RESPON- SIBLE FOR STANDARDS COMPLIANCE COULD VOID THE USER'S AUTHORITY TO OPERATE THIS EQUIPMENT.
  • Page 8: The Amplifier

    The sound dinarily low distortion and unique of the M1A is pure and true to the successive stage to output confluence source. provides a seamless combination of...
  • Page 9: Front Panel Features

    The first light indicates that the output relay light is the “power” indicator. This is engaged and the M1A is ready for indicates that power has been turned listening. If the M1A is overheated on. The “voltage” light indicates (78 degrees Centigrade), the “out-...
  • Page 10: Rear Panel Features

    At power up, the collar signifies the positive terminal. unit goes through a start-up se- The M1A is non inverting. Connec- quence and remains muted until the tion to the speaker binding post output light comes on. When the...
  • Page 11: Heat Sink

    Heat Sink Input Connector The heat sink on the back panel of The M1A has one gold-plated RCA the M1A is designed to dissipate heat input connector. The RCA input generated by the output section of plugs (interconnect terminations) the amplifier. For best performance...
  • Page 12: Installation

    Each M1A contains an oversized this reason we did not design the toroid transformer wound in a con- M1A to drive a 2 ohm load to full figuration designed for minimum power. The over-current trip circuits magnetic field radiation. It is recom-...
  • Page 13: Troubleshooting

    68 degrees centigrade. 5. The power light comes on but the voltage light never comes on. A. The M1A contains two AGC 6 amp internal rail fuses (F2 and F3) located on the p.c. board for circuit protection. In the unlikely event of a failure of one or both of these fuses, red indicator lights will be visible through the vents in the top of the unit.
  • Page 14: Technical Specifications

    Main(s) Fuse 120 VAC - MDL5 230 VAC - MDL3 Dimensions 17.6” wide 3 4” high (including rubber feet) 3 11” deep Warranty 3 years, parts and labor Manufactured by Herron Audio Division of Herron Engineering, Inc. St. Louis, Missouri...
  • Page 15: Fcc Notice

    M1A Power Amplifier Owners Manual FCC Notice This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation.
  • Page 16: Re-Cycling

    M1A Power Amplifier Owners Manual Re-cycling Correct Disposal of Waste Electrical and Electronic Equipment (WEEE) by User in Private Households in the EU. This symbol on the product or accessories indicates that they must not be disposed of with your household wastes throughout the EU. To prevent pos-...

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