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Rogue Audio M-150 owner manual

Models: M-150

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WARNING – There are dangerous and potentially 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 for at least 30 minutes.

2)Turn the preamplifier volume completely off so that no signal is entering the amplifier

3)Loosen the 4 captive screws on the top hatch cover.

4)Remove the hatch cover. The bias tool is snap attached to the inside of the cover.

5)Locate the toggle switches and associated small potentiometers (they are blue and have a small screw in the top). There is a set of four in each amplifier. Note the biasing meter.

6)Make sure that all of the toggle switches are pointed away from the meter (run position). Begin with any switch, moving the switch into the “set” position. You will see that the meter will rise up to show that the tube’s current is now flowing through the meter.

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Rogue Audio M-150 owner manual
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M-150 specifications

The Rogue Audio M-150 is a high-performance tube amplifier that epitomizes a blend of classic aesthetics and modern engineering. Designed for audiophiles who appreciate the warmth and richness of tube sound, the M-150 delivers a compelling listening experience. Producing 150 watts per channel, it can drive a wide range of speakers with exceptional clarity and power.

The heart of the M-150 lies in its use of EL34 output tubes, which are known for their musicality and detail. These tubes work in conjunction with a sophisticated circuit design that optimizes the amplifier’s performance while minimizing distortion. The M-150 features both balanced and single-ended inputs, allowing users to connect a range of source components, including digital and analog sources, seamlessly.

One of the standout technologies in the M-150 is its unique automatic biasing system. This system ensures that the output tubes operate at their optimal performance level without requiring frequent adjustments. This feature not only enhances reliability but also prolongs the life of the tubes, making it an ideal choice for both novices and experienced listeners.

The M-150 also includes a robust power supply that provides ample current to drive demanding loads. The transformer is custom-designed to deliver low noise and minimal distortion, further contributing to the amplifier's overall sonic quality. The result is a dynamic range that captures the nuances of recordings, from the subtleties of classical music to the aggressive nature of rock.

Additionally, the amplifier boasts a sleek and stylish design, with a brushed aluminum front panel and large, illuminated VU meters that provide a visual indication of output levels. The chassis is stout and well-built, designed to minimize vibrations and mechanical noise, which can interfere with audio performance.

Whether you are a dedicated audiophile or simply someone who appreciates good sound, the Rogue Audio M-150 offers a compelling combination of tube warmth, power, and innovative features. Its impressive audio fidelity, ease of use, and aesthetic charm make it a remarkable choice for anyone looking to elevate their listening experience to new heights. This amplifier is a testament to Rogue Audio's commitment to craftsmanship and quality in audio reproduction.