Octave HP 500 SE Manual
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Octave HP 500 SE Manual

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HP 500 SE

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Summary of Contents for Octave HP 500 SE

  • Page 1 HP 500 SE...
  • Page 2 We have specialized in tube amplification for the past 20 years, during which time we have developed a number of innovative technologies that have earned us a reputation as one of the leaders in the field. We hope you will enjoy many hours of wonderful music with your OCTAVE amplifier. Andreas Hofmann...

  • Page 3: Owner's Certificate

    OWNER'S CERTIFICATE The exclusive Octave HP 500 Mk III Jubilee Edition has been revised and refined in numerous ways in response to suggestions made by the editorial team at Stereoplay magazine. This version was approved by the editorial team following exhaustive listening tests. The sonic performance of each of the 99 Limited Edition units far exceeds that of the standard models.

  • Page 4: Table Of Contents

    CONTENTS Page Introduction Owner's Certificate OCTAVE technology ..............1.1. Differences to other tube amps ........... 1.2. Description..................Safety instructions ................ 2.1. Before you begin ................2.2. Placement..................2.3. Warranty ..................Setting up ..................3.1. Connecting the amplifier............... 3.2. Running in ..................

  • Page 5: Octave Technology

    1.1. OCTAVE amps in contrast to other tube amplifiers Sound 1. The design goal of OCTAVE amplifiers is honest, natural sound reproduction. The sound characteristics of an amplifier are derived from the sum of all its parts. Tubes do not themselves guarantee high quality sound.

  • Page 6: Description

    10 years. Gain switch You can adjust the gain of the line stage in the HP 500 SE. This means you can tailor the effective adjustment range of the volume control to suit your particular power amp-loudspeaker system.

  • Page 7: Safety Instructions

    2. SAFETY INSTRUCTIONS 2.1. Before you begin Before using your HP 500 SE, please check your local line voltage and pay attention to this manual In case of emergency: disconnect the plug from the mains supply Never use an amplifier that is damaged or faulty. Make sure that it cannot be used until it has been repaired by a qualified service engineer.

  • Page 8: Placement

    2.2. Placement 1. Location OCTAVE equipment is designed strictly for use in a dry domestic environment. Do not use it in the open air or in damp environments! Never place plants or liquid filled containers on your OCTAVE equipment. Take care that objects do not fall or liquids are not spilled into the enclosure.

  • Page 9: Setting Up

    (positive on the amplifier to positive on the speakers). Check that the amplifier is switched off before connecting the power cable to the wall socket. The stand by/power rotary switch for the HP 500 SE is located on the front panel (see Chapter 4, Operation) Check that the volume control is not set at maximum before playing music through the amplifier.

  • Page 10: Operation: Front Panel

    4. OPERATION - Front panel HP 500 SE Stand by Muting Volume Disc Source Tape Tuner Gain Low Gain High Phono  Power (standby switch) The LED above the switch illuminates when the power is on. When it is switched off here, the amplifier remains in standby mode with certain sections of the amplifier still operational.
  • Page 11 REC output on the rear of the HP 500. Please note: The HP 500 SE is fitted with a switch-on delay. This increases the life of the tubes and suppresses switch-on noises, as the output of the preamplifier is muted during the switch-on process.

  • Page 12: Connections: Rear Panel

    5. CONNECTIONS: Rear panel  Subsonic filter Left position - off, right position - on  Phono selector switch (MM/MC version only) The toggle switch selects the MM or MC input  MC input Input for moving coil pickup  Ground (earth) connection For connecting an earthing wire to the turntable (if required).

  • Page 13: The Outboard Power Supply

    HP 500 SE. It cannot be used with any other device. Benefits The Power Supply contributes substantially to the improved sound quality of the HP 500 SE. Its design is based on the realization that an effective improvement in sound quality can be achieved by completely isolating the preamplifier from the mains (simulated battery powered operation).

  • Page 14: Rear Panel For 230/115 V Grounded Mains

    6. OUTBOARD POWER SUPPLY 6.2. Rear panel for 230/115 V grounded mains  On/off switch Switch the unit off using this switch if you do not intend to use the preamplifier for some time.  AC input three-pin IEC receptacle: A power cable is supplied with your preamplifier.

  • Page 15: Rear Panel For 100 V Ungrounded Mains

    6. OUTBOARD POWER SUPPLY 6.3. Rear panel for 100 V mains (ungrounded)  On/off switch Switch the unit off using this switch if you do not intend to use the preamplifier for some time.  Fuse holder 100 V mains: 1,6 A time-lag fuse.

  • Page 16: Programmable Remote Control

    Device selector OCTAVE code B Volume up Volume down Select your OCTAVE amplifier on the touch screen panel with button AUX. Once selected you can always control the volume directly by pushing the button Vol + or Vol - .

  • Page 17: Tubes

    8. TUBES 8.1. Tube layout Before opening the cover it is mandatory to remove the power cord from the mains power inlet.  Line board: ECC 82 / 12 AU 7  +  EF 184  Phono board: ECC 83 / 12 AX 7 ...

  • Page 18: Removing The Grille

    8. TUBES 8.2. Removing the grille First, switch the unit off and remove the mains plug from its wall socket. Remove the two Allen bolts located at the top left and right of the front panel using a size 4 Allen key. Insert a Philips no.

  • Page 19: Replacing Tubes

    8. TUBES 8.3. Replacing tubes Please use only original OCTAVE replacement tubes. These have been selected and tested for use in our amplifiers. Important! Changing tubes is a job for a qualified technician! Switch off the preamplifier, unplug the power cord from the wall socket, and allow the unit 10 minutes to cool down.

  • Page 20: Option: Phono Mm/Mc

    The phono section of the HP 500 SE The phono section of the HP 500 SE is an enhanced version of our hybrid phono technology. The phono section now offers a greater level of compatibility with low output and low impedance moving coil cartridges.

  • Page 21: Adjusting The Mc Input

    9. PHONO MM/MC OPTION 9.2. Adjusting the MC input Before you can adjust the MC input, you need to remove the grille from your preamplifier (see "Removing the grille"). Slider switches for MC input impedance Left channel Right channel Switch 1 – 4 Switch 5 - 8 Switch option Switch...

  • Page 22: Troubleshooting

    This device has no adverse affect on the sound or picture quality of tuners or TVs. The HP 500 SE is not earthed (only the power supply is earthed) and cannot therefore cause ground loops.

  • Page 23: Technical Data And Dimensions

    11. TECHNICAL DATA AND DIMENSIONS In- and Outputs Inputs 6 x RCA (two of them are phono MM/MC with the option phono, without phono option the MM-input is line level, the MC-input is not mounted Bypass-Function for input Tape play is on request Outputs 2 x RCA, 1 x XLR, 1 x Tape Record (RCA) Line stage...
  • Page 24 460 HP 500 SE Features  The HP 500 SE is fitted as standard with two RCA phono outputs and one XLR outputs.  The XLR output is transformer-coupled and galvanically isolated.  The HP 500 SE has separate inputs for MM/MC.

  • Page 25: Specifications

    12. SPECIFICATION Diagrams Frequency response accuracy of line stages in 'low gain' setting. 20 Hz - 200 kHz: 0.1 dB Overall distortion (THD + noise) of line stage from 20 Hz - 200 kHz. Distortion remains low up to 20 kHz...
  • Page 26 12. SPECIFICATION Diagrams Noise spectrum of line stage, 4 V output at 1 kHz. The low level of harmonic distortion and low noise level are clearly visible. There are no hum components at 50 Hz and 100 Hz. Frequency response of the phono stage with and without subsonic filter...
  • Page 27 We reserve the right to alter and improve the specifications in pursuit of better. OCTAVE logo is a registered trade mark of Andreas Hofmann. Copyright by Andreas Hofmann. Reproduction in whole or part is prohibited. edited EN2010 OCTAVE AUDIO Germany...

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