Manley Absolute Owner's Manual
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Manley Absolute Owner's Manual

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OWN E R S M AN UA L

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  • Page 1 OWN E R S M AN UA L...

  • Page 3: Quick Start

    connect a stereo source to Input 1 with unbalanced RCA cables push the POWER button 6AQ5 (EL90) 12AX7 (ECC83) plug your your headphones into Output “J” QUICK START select select OUT “J” IN “1” increase volume thumbwheel to listen...

  • Page 4: Table Of Contents

    No part of this document may notice. Manley Laboratories, Inc. shall not be liable for errors contained herein or direct, indirect, be reproduced, in any form, without prior written incidental or consequential damages in connection with the furnishing, performance, or use of this permission of Manley Laboratories, Inc.
  • Page 5 Especially Useful Tip Please take a few moments to read through this manual carefully. It contains essential information for the proper operation of your Manley Absolute Headphone Amplifier. Caution! Pay Attention! Also in the following pages you will find useful hints and tips, allowing us to help you Important Information, achieve the utmost performance from your equipment.

  • Page 6: Rear Panel

    rear panel front panel key tube placement 6AQ5 (EL90) 12AX7 (ECC83) serial label mains inlet...
  • Page 7 RCA Out (R) - This pair of outputs allows the Absolute Power Button - This switch controls the amplifier’s Headphone Amplifier to be used as a preamplifier. powering up and down cycle. When the Absolute Headphone Amplifier is connected to the mains supply, Connect a pair of RCA interconnects from here to your power amplifier.

  • Page 8: Front Panel

    front panel...
  • Page 9 Mute Control - Stops sound from passing through the indicates Push-Pull mode is active. The SE LED shows that Absolute Headphone Amplifier’s output. When engaged, the amplifier is in Single-Ended mode. the LED above the button is illuminated white. This LED...

  • Page 10: Top Panel

    top panel output tubes 6AQ5 x 4 input tubes 12AX7 x 2...
  • Page 11 It works by applying a portion of the corresponding white LED is illuminated. output signal back to the input. The Absolute Headphone Headphone Load Set - The Absolute Headphone Amplifier Amplifier allows the user to change the amount of negative...
  • Page 12 The amplifier will shut down, and whatever is connected to input 1 will be diverted to the The Absolute Headphone Amplifier uses a Baxandall RCA output sockets. This is especially useful if circuit to control these frequencies. For a more...

  • Page 13: Measurements

    measurements (1) -100...

  • Page 14: The Remora Remote

    - program code is exclusive for that unit. For example, if flash red - pair up you have one Absolute Headphone Amplifier flash green - pair down in your bedroom and another in your living room, they can each have different codes so one remote does not inadvertently operate both units.

  • Page 15: Pairing The Remora Remote

    STEP TWO: ARM THE REMORA REMOTE CONTROL PAIR THE REMOTE WITH THE HEAD UNIT 1. Unplug the Absolute Headphone Amplifier’s power cord. 1. Attach the power cord to the headphone amplifier. Make sure the unit is in Standby mode (Red Power 2.

  • Page 16: Specifications

    specifications Amplifier Topology: Triode Vacuum Tube Output Stage, Switchable Topology Single-Ended or Push-Pull Vacuum Tubes: 2 x 12AX7 (ECC83 / 7025), 4 x 6AQ5A (EL90 / 6005) Inputs: 2 x Unbalanced RCA (Input 1 & Preamp Output = Bypass when amplifier is on Standby or off) Input Impedance: 50 kOhms (Pass-Thru= 300 kOhms) Maximum Input Level:...
  • Page 17 specifications Variable Feedback Control (FB): MIN 0dB, MAX 10dB (Conditions: BAL output, PP mode, 16 Ohms load, VOL up, EQ out) Signal to Noise Ratio: 83 dB (1kHz tone, 100mW output, BW 22Hz-22kHz) (Conditions: BAL output, PP mode, FB 12:00 o’clock, 16 Ohms load, VOL up, EQ out) Noise Floor: -82 dBu (45 uVAC) BW 22Hz-22kHz -85 dBu (85 uVAC) A-Weighted...
  • Page 18 If you are new to vacuum tubes, here is some relevant information which you may find useful. Vacuum tubes are used in the Absolute When plugging in a new tube, make sure the tube’s Headphone Amplifier to generate the audio pins align with its matching socket, observing the power.

  • Page 19: Measurements

    measurements (2)

  • Page 20: Troubleshooting

    Check that the IEC plug is fully inserted all the way into its socket. If RED standby LED does not illuminate when the IEC mains cable is connected, refer to dealer or Manley Tech Support. Remote not functioning Battery not connected The Remora remote handset uses a 9V battery.

  • Page 21: Safety

    Power Sources – The Headphone Amplifier has a universal Water and Moisture – Do not use the Absolute power supply which can operate in any country. It has an Headphone Amplifier near any source of water or in input voltage range of 90-254 VAC at 50/60 Hz.

  • Page 22: Maintenance

    Vacuum Tubes The Manley Absolute Headphone Amplifier The vacuum tubes in the Absolute Headphone requires very little maintenance. Amplifier have a life span of approximately 5000 Cleaning hours, after which the tubes should be completely The metal parts are made from aluminum which replaced.

  • Page 23: Credits

    The Absolute Headphone Amplifier was designed over a period of three years. This amplifier was a challenge to all of those involved. First and foremost, it had to be a fully featured high-end audiophile product - but at the same time, it was to be a piece of art.
  • Page 24 Designed & Handcrafted in the USA by: Manley Laboratories, Inc. 13880 Magnolia Avenue Chino, CA 91710 USA Tel: +1 (909) 627-4256 www.manley.com...

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