Plinius A-300 Manual
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Plinius A-300 Manual

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Contents
Introduction .................................................................................... 2
Unpacking......................................................................................... 3
Placement & Ventilation ................................................................ 3
Care & Maintenance ....................................................................... 4
Precautions ..................................................................................... 5
Front Panel Functions .................................................................... 6
Rear Panel Functions ...................................................................... 8
Installation & Operation ................................................................ 11
Product Features ........................................................................... 15
Loudspeaker Selection ................................................................... 17
Troubleshooting .............................................................................. 18
Specifications .................................................................................. 19
Index ................................................................................................. 20
All operational, technical and descriptive material in this publication
is subject to change at any time without notice. For further product
information or queries, please contact your Plinius dealer.
Plinius products are designed and manufactured by
Plinius Audio Limited, New Zealand.
1
PLINIUS REFERENCE A-300

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Summary of Contents for Plinius A-300

  • Page 1: Table Of Contents

    All operational, technical and descriptive material in this publication is subject to change at any time without notice. For further product information or queries, please contact your Plinius dealer. Plinius products are designed and manufactured by Plinius Audio Limited, New Zealand.

  • Page 2: Introduction

    Introduction Congratulations on your decision to become the proud owner of this Plinius Reference A-300 power amplifier. This manual has been prepared to help you understand the operation of your amplifier, and to provide information about its design and the variety of ways it may be used.

  • Page 3: Unpacking

    Unpacking The Plinius Reference A-300 power amplifier is a very heavy amplifier and so requires to be shipped in a custom made crate. To open the crate you must locate and remove the 12 pozi drive screws around the base of the crate. Once all of the screws have been removed, the crate will lift off the base and expose the inner carton containing the amplifier.

  • Page 4: Care & Maintenance

    From time to time you may wish to clean the surface of your Plinius equipment to remove dust, or any material build up from the atmosphere or on commonly used controls. Your Plinius product is made up of parts that have a hard anodised or a powder coat finish and will clean easily without being damaged.

  • Page 5: Precautions

    PLEASE TAKE SPECIAL NOTE OF THE FOLLOWING PRECAUTIONS BEFORE OPERATING YOUR NEW AMPLIFIER. • The Plinius Reference A-300 power amplifier can deliver up to 1000 watts into 8 ohms. This amplifier is also capable of a very large peak current delivery. •...

  • Page 6: Front Panel Functions

    Front Panel Functions The front of the Plinius Reference A-300 power amplifi er incorporates all the facilities you will require on a daily basis. 1. DISPLAY LED An LED in the centre of the front panel indicates the power is on. When fi rst switched on, the display will vary in brightness until the initialisation sequence is completed, after which the LED remains lit.
  • Page 7 This feature allows you to leave the Reference A-300 switched ON at all times, rendering the amplifier ready for use and requiring only a few minutes of warm-up in Class A before the very best of the amplifier’s sonic qualities may be experienced.

  • Page 8: Rear Panel Functions

    1. INPUT TERMINALS Input terminals for your Plinius Reference A-300 power amplifi er are easily accessible and fi tted near the top centre area of the rear panel.
  • Page 9 If you wish to use this amplifi er as a single channel (mono) power amplifi er in a stereo high fi delity system, then another Reference A-300 will be required for the other channel. This will provide an extremely high performance option.
  • Page 10 In order to integrate more effectively into a home theatre or multimedia system, the Plinius Reference A-300 has a remote trigger socket on the rear panel. By connecting a preamplifier or processor with a remote trigger output signal to these terminals, the Reference A-300 can be put in and out of Class AB/Mute by the component to which it is connected.

  • Page 11: Installation & Operation

    FOR PLACEMENT & OPERATION OF THIS PRODUCT. CONNECTIONS Connections to your Plinius Reference A-300 should be made in the same order as they are listed in this section. DO NOT attempt to connect your Plinius Reference A-300 until you have read and fully understood these instructions. Although these instructions refer to the connection of a preamplifier, the Reference A-300 can also be safely installed into multimedia systems by following the same installation guidelines.
  • Page 12 Bi-wiring uses two pairs of loudspeaker cables for each channel loudspeaker. You will notice that the rear panel of your Plinius Reference A-300 has two pairs of output terminals for this purpose. Be sure to follow correct practises for stereo and mono configurations when using bi-wiring.
  • Page 13 Check the wall outlet is switched OFF, then connect the local mains plug end of the lead to the wall outlet. Check the Reference A-300 is switched OFF, and connect the IEC end of the cable to the IEC socket at the back of the Reference A-300. With the cord fully connected, switch the wall outlet ON.
  • Page 14 Use the MUTE switch on the front panel to take the unit out of MUTE and you can now enjoy your new Plinius Reference A-300 power amplifier. NOTE: This unit must be connected to a mains socket outlet with a protective earthing connection.

  • Page 15: Product Features

    ECOLOGIC CONTROL The Plinius Reference A-300 is also fitted with a microprocessor which monitors and performs the Bias and Mute functions. It is programmed to switch the amplifier back into Class AB if no signal has been present at the input for a predetermined time. This time can be adjusted to Off, 15, 30 or 60 minutes.
  • Page 16 IMPORTANT: DO NOT FIT A FUSE WITH A HIGHER RATING. NOTE: Fuse failure may indicate a severe problem. Should the amplifier continue to exhibit mains fuse failure contact your Plinius dealer. PLINIUS REFERENCE A-300...

  • Page 17: Loudspeaker Selection

    Loudspeaker Selection Your Plinius Reference A-300 power amplifier is designed for use with high fidelity loudspeakers. It should not be used to operate any other type of appliance or equipment. Be certain that your loudspeakers can handle most of the rated output power of this amplifier.

  • Page 18: Troubleshooting

    If the fuse has failed, see Fuse Protection in the Product Features section of this manual. NOTE: If the unit immediately or repeatedly suffers rail fuse failure, there may be a major problem and you should contact your Plinius dealer. POWER FAILURE The unit may have suffered mains fuse failure.

  • Page 19: Specifications

    <0.05% THD at rated power Depth: 550mm (21.75") RISE TIME Weight: 57kg (125lbs) Typically 5µs CURRENT OUTPUT 100A short duration peak per channel Fuse protected HUM & NOISE 100dB below rated output 20Hz to 20kHz A weighted PLINIUS REFERENCE A-300...

  • Page 20: Index

    RCA Stereo Input ..............9, 11 Rear Panel Layout ...............8 Remote Trigger ..............10 Safety Precautions ..............5 Serial Number ..............2 Terminations ................12 Troubleshooting ..............18 Unbalanced Signal ..............9 Ventilation ................3 XLR Balanced Mono Input ..........9, 13 XLR Stereo Input ..............9, 11 Warm-Up Period ..............14 PLINIUS REFERENCE A-300...

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