Instruction/ maintenance manual of the product M-150 Rogue Audio
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M-150 Monoblock Power Amplifier Owner’s Manual Rogue Audio, Inc. 3 Marian Lane Brodheadsville, PA 18322 Issue date: 10/27/03.
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) Reg.
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.
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.
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).
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.
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.
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 .
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.
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.
An important point after buying a device Rogue Audio M-150 (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought Rogue Audio M-150 yet, this is a good time to familiarize yourself with the basic data on the product. First of all view first pages of the manual, you can find above. You should find there the most important technical data Rogue Audio M-150 - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, Rogue Audio M-150 you will learn all the available features of the product, as well as information on its operation. The information that you get Rogue Audio M-150 will certainly help you make a decision on the purchase.
If you already are a holder of Rogue Audio M-150, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime Rogue Audio M-150.
However, one of the most important roles played by the user manual is to help in solving problems with Rogue Audio M-150. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Rogue Audio M-150 along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center