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Rogue Audio M-150 manual

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Table of contents for the manual

  • Page 1

    M-150 Monoblock Power Amplifier Owner’s Manual Rogue Audio, Inc. 3 Marian Lane Brodheadsville, PA 18322 Issue date: 10/27/03[...]

  • Page 2

    1 TABLE OF CONTENTS 1) Introduction 2 2) Unpacking the M150 power amplifier 2 3) Connecting M150 to your system 3 4) Operation of the amplifier 4 5) Setting the tube bias 5 6) Troubleshooting 7 7) Registration card 8 8) Fuse values 8 9) Specifications 8 10) Warranty 9[...]

  • Page 3

    2 INTRODUCTION Congratulations on your purchas e decision! We at Rogue Audio truly believe that our amplifiers provide the “smartest” valu e in high-end audio. If you have never owned a vacuum tube amplifier you w ill be thrilled by the silky-sm ooth sound and incredible detail that only a tube amplifier can provide. A nd with the M150 Monobloc[...]

  • Page 4

    3 CONNECTING M150 TO YOUR SYSTEM Connecting M150 to the Loudspeakers: The rear panel has binding posts for bot h 4 and 8 ohm loudspeakers as shown in Figure 1. In general, if y our speakers are rated at less than 6 ohm s, use the 4 ohm taps and use the 8 ohm taps if they are 6 ohms or greater. CAUTION – Do not operate the amplif ier unless it is [...]

  • Page 5

    4 Connecting M150 to the power outlet: Connect the IEC send of the detachable power cord provi ded to the amplifier, an d plug the opposite end into corresponding outlet. It is recommended that both M150’s and your preamp are plugged into the same wall outlet if possible (perhaps using a power outlet strip). Th is is to avoid creating a ground lo[...]

  • Page 6

    5 Triode/Ultralinear switch: This switch is located on the back pa nel of the amp. See Figure 1. The output transformer of a tube amplifier acts as th e electrical interface between the very different impedances of the loudspeaker and the tube circuitr y. There are three fundamental ways that the out put transformer can be connect ed to the tube ci[...]

  • Page 7

    6 WARNING – There are dangerous and potent ially lethal voltages inside this amplifier. Do not touch any part of the amplifier other than as described below. If you are uncertain about any of these instructions, please contact your dealer and have them bias the amplifier for you. Figure 2. Removable hatchplate 1) Allow the amplifier to warm up f [...]

  • Page 8

    7 7) Using the bias tool, slowly turn the sc rew on the potentiometer that is adjacent to the switch until the bias meter read s ~ 40 miliamps (m A). Turn the screw clockwise to lower the bias and countercl ockwise to raise th e bias. Note that there are two ends on the bias tool . Using the end with the recessed screwdriver will greatly facilitate[...]

  • Page 9

    8 TROUBLESHOOTING Speaker Hum – If hum can be heard from more than a few inches from the loudspeaker, there is probably a ground l oop. If there is s till hum, flip the grounded/ungrounded switch on the rear panel to ungrounded. If this fails to cure the hum, call customer s ervice at Rogue Audio for further advice. Tube will not bias – If the [...]

  • Page 10

    9 LIMITED WARRANTY Warranty Per iod This product has been manufactured under th e highest st andards of quality and workmanship. Rogue Audio Inc. (hereinafter “Rogue Audio”) warrants this produc t against defects in material or workmanship as follows: With the exception of vacuum tubes, Rogue Audio warrants to the origin al purchaser of this pr[...]