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Plinius M14 Instruction Manual

Phono preamplifier
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Summary of Contents for Plinius M14

  • Page 1 P h o n o P r e a m p l i f i e r...
  • Page 3 We have designed and manufactured this preamplifier to reproduce faithfully and accurately, your favourite music. With a little care and a full understanding of the operating recommendations in this manual, your Plinius M14 Phono Preamplifier will provide years of high-quality, trouble-free performance. Serial Number: ..................
  • Page 4 Precautions ...........................Page 5 Preamplifier Features – Front Panel .....................Page 6 Preamplifier Features – Rear Panel ....................Page 8 Installation and Operation ......................Page 10 Input/Output Connection ......................Page 11 M14 Features ..........................Page 13 Specifications ..........................Page 14 Index ............................Page 15 Contact Details ..........................Page 16...
  • Page 5 Please take special note of the following precautions before operating your new preamplifier: • This preamplifier operates at hazardous voltage levels. We recommend that any work requiring removal of the lid or base be referred to a suitably qualified and experienced service technician. DO NOT attempt to connect any input of this preamplifier to its own outputs.

  • Page 6: Display Led

    As labelled on the front panel, absolute phase is selected with the switch to the upper position, and inverted 180° phase is the lower position. MUTE SWITCH Use this switch to mute the output of the Plinius M14. The display LED will dim to show the phono preamplifier is in mute.
  • Page 7 Use this knob to set the gain of the phono stage to suit your particular phono turntable. When changing the gain setting, the output of the Plinius M14 is momentarily muted to prevent any transient offset thump. CARTRIDGE LOAD SELECTION KNOB The phono cartridge load can be adjusted to suit your particular phono cartridge using this selection knob.

  • Page 8: Input Terminals

    INPUT TERMINALS The input terminals of your Plinius M14 Phono Preamplifier are standard RCA terminals for use with single ended signals from a phono turntable only. It is not wise to connect any other audio source (such as a CD player) to the inputs of the Plinius M14.

  • Page 9: Ground Lift Switch

    GROUND LIFT SWITCH This switch allows the signal ground to be disconnected from the chassis. In some installations a hum loop may exist due to duplicate ground paths from different equipment. Use this switch to remove the connection from 0V to ground thus allowing some flexibility in your particular set-up. MAINS SWITCH The heavy-duty rocker switch to the right of the panel turns the Mains/Line Power to the amplifier ON or OFF.

  • Page 10: Placement And Ventilation

    (slots in the lid) are not covered or restricted in any way. Also refrain from placing the Plinius M14 on top of other electronic equipment to avoid RF interference being introduced to the highly sensitive phono stage circuitry.
  • Page 11 Connect your phono turntable to the inputs on the back of the Plinius M14. Make sure you connect the red coded cable to the red RIGHT RCA input, and the black (or white) cable to the black LEFT RCA input.

  • Page 12: Connecting The Mains Supply

    Use the Mute switch to operate the Plinius M14. You can now enjoy your new Plinius M14 Preamplifier. WARM-UP PERIOD You will find that the Plinius M14 will become noticeably ‘warmer’ in sound after being on for a period of time. We usually recommend waiting at least 72 hours before expecting the best quality of sound reproduction from your preamplifier.

  • Page 13: Mains/Line Fuse

    MAINS/LINE FUSE A Mains/Line fuse is fitted within the IEC socket on the rear of the preamplifier. A small drawer at the bottom of this socket may be removed (after the IEC plug is removed) by levering it out with a flat blade screwdriver.
  • Page 14 F F F F R R R R : : : : Phono RIAA network 20Hz to 20kHz ±0.2dB. REQUENCY REQUENCY REQUENCY REQUENCY ESPONSE ESPONSE ESPONSE ESPONSE D D D D : Typically <0.05% THD at rated input level. ISTORTION ISTORTION ISTORTION ISTORTION...
  • Page 15 Cartridge Load Selector ........................Page 7 Date of Manufacture ........................Page 3 Front Panel Layout..........................Page 6 Front Panel Switches........................Page 6 Fuse Protection ..........................Page 14 Gain Selector ..........................Page 7 Ground Lift Switch..........................Page 9 IEC Power Connector......................Pages 12,14 Input Terminals ........................Pages 8,11 Mains/Line Fuse...........................Page 13 Mains Supply Connection......................Page 10 Mains Switch ..........................Page 9...
  • Page 16 All operational, technical and descriptive material published here is subject to change at any time without notice. For further product information or queries, please contact us at the address below. PLINIUS PLINIUS products are designed and manufactured by: PLINIUS PLINIUS Audible Technologies Ltd.

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