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PrimaLuna ProLogue Five manual

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Table of contents for the manual

  • Page 1

    Prima Lun a ® ProLog ue Fiv e P o w er Amplifier Serialnumber ........................................................... Prim aLun a ® Pr oLo g ue Fiv e[...]

  • Page 2

    2 T able of Contents Thank you 3 Specifications 4 W arning - Package Contents - Initial Setup 5 Inputs & Controls 6 Adaptive AutoBias™ 7 T ube Replacement 8 Fuse Protection 9 T roubleshooting 10 W arranty Information 1 1 Copyright Durob Audio BV - 2005. All rights reserved. Reproduction in whole or part of text, logo, graphics or schematics i[...]

  • Page 3

    3 THANK YOU! We would like to thank you for choosing our PrimaLuna ProLogue Five vacuum tube power amplifier as part of your music system. The ProLogue Five is the second tube power amplifier of our family of affordable, high-quality tube products. The designers and builders of the PrimaLuna equipment all have a long history in high-end audio. We f[...]

  • Page 4

    4 Specifications Power 36 W atts per channel Frequency Response 20Hz - 85kHz +/- 0,2dB at rated power; 4Hz - 1 10kHz -3dB @ 1W THD with AABB <0,1% @ 1W; <1% @ 10W ; max 2% at rated power into resistive load S/N Ratio 89 dB (unweighted) ref 1W Input Impedance 100 kOhm Input Sensitivity 600mV rms input for rated output power Gain 28x (29dB) Pow[...]

  • Page 5

    5 W arning T o prevent serious injury , electrical shock or fire: • Do not operate with bottom plate removed. • Keep away from rain and moisture. • Always disconnect all cable connections to and from amplifier before changing fuses and/or tubes. • Do not replace fuses with any fuse other than the same type and rating as used by the factory [...]

  • Page 6

    Inputs and Controls Front Panel The front panel of the PrimaLuna models is made from machined aluminium, finished to match the blue metallic chassis. No controls are available from the front. The power switch is located on the left side of the amp, just behind the front plate. Rear Panel Looking at the rear panel, you will note you have one set of [...]

  • Page 7

    7 Adaptive AutoBias™ Exclusive to PrimaLuna, this circuit monitors and smoothly adjusts bias constantly and instantly . The genius of this design is that the Adaptive AutoBias™ actually improves the overall sound quality and performance of the amp. Between 12 and 30 W atts, measured distortion levels drop by over 40%. In addition, tubes do not [...]

  • Page 8

    8 T ube Basics The 12AX7 and 12AU7 tubes will have a life of about 5,000 to 10,000 hours. The lives of powertubes are more difficult to predict. This also depends on how "gently" or "roughly" you use your amplifier . In general -under normal conditions- you can say between 2,000 and 3,000 hours. Here are some tips on using tubes[...]

  • Page 9

    9 Fuse Protection A note on fuses : If "someone who knows" tells you to wrap fuses with aluminium foil to avoid wasting money on new ones, it's best not to take his advice. Fuses are safety valves. They should always be replaced with the exact same value and type. Warning : Never attempt to check or replace a fuse while the amp is pl[...]

  • Page 10

    10 T roubleshooting Some tips: • No output. Power is on, but power LED is off and tubes do not light up. Mains fuse is out. Replace fuse as per instructions on page 9. • No output. Power LED is on and tubes do light up normally . Plate fuse may be out. Replace fuse as per instructions on page 9. If the new fuse goes out immediately after replac[...]

  • Page 11

    11 W arranty Information T wo-year limited warranty Six-month warranty on stock vacuum tubes T erms & Conditions 1. Limited to original purchaser . This warranty is for the sole benefit of the original purchaser of the covered product, and may not be transferred to a subsequent owner . 2. Conditions & Limitations. This warranty is subject t[...]

  • Page 12

    Herman van den Dungen: PrimaLuna  in Italian language is "First Moon" . My grandfather was the first "Herman" . My grandmother , an aristocratic lady in a small Dutch village, had a special name for her husband: "Maantje" , which means Little Moon (which is now also the name of our small dog), van den Dungen . The p[...]