Troubleshooting, Fuse Values, Specifications

TROUBLESHOOTING

Speaker Hum – If hum can be heard from more than a few inches from the loudspeaker, there is probably a ground loop. If there is still hum, flip the grounded/ungrounded switch on the rear panel to ungrounded. If this fails to cure the hum, call customer service at Rogue Audio for further advice.

Tube will not bias – If the meter provides a reading but the tube will not bias, the tube is probably bad. If no meter reading can be attained, check the fuse (1/4 Amp fast blow). If the fuse is bad, replace the fuse and then set the bias. If the bias will not maintain itself and the fuse blows again, the tube should be replaced.

Bias Meter reading is too high – Check that you do not have two of the bias switches turned on.

Output sounds distorted - Check the bias on the output tubes to ensure that the tubes are operating properly.

OWNER AND WARRANTY REGISTRATION FORM

Included with this manual is an Owner and Warranty Registration Form. Please take a minute to fill out this card and return it to Rogue Audio. This card must be returned within 30 days of purchase to validate the warranty.

FUSE VALUES

Main fuse located on rear panel (1) – 5 Amp slow blow

Tube Fuses (4) – 2/10 Amp slow blow

Power Supply Fuse on PCB (1) – ¾ Amp slow blow

	SPECIFICATIONS
output power	150 WPC
frequency response	5Hz – 50 kHz ± 1dB
THD	< 0.1% typ, < 1% at rated power
input sensitivity	1.0 V RMS
dimensions	14 ½” W x 19” D x 7” H
weight	55 pounds (25 Kg)
shipping weight	60 lbs (27 Kg)
power requirements	115/230V - 50/60Hz

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.