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Rogue Audio Atlas Magnum III amplifier outperforms many more expensive devices

Dale Davies |
The Atlas Magnum III handily outperforming amplifiers costing many times its price, the Rogue Atlas Magnum III sets a new standard in affordable tube amplification.

With circuitry borrowed from Rouge Audio most advanced amplifier designs, the Atlas effortlessly conveys the detail and nuance of even the most complex musical passages. And with 100 WPC of pure tube power on tap, the Atlas Magnum III is capable of realistic volume levels that will rival the clarity and presence of the original performance. From a technical standpoint, the Atlas Magnum III represents the cutting edge of tube amplifier design.

An oversized linear power supply stores tremendous energy for the dynamic headroom great performances demand. A new Ultralinear/Ttriode switch allows for both modes of operation; Ultralinear for slam, and pure triode for the ultimate in tube smoothness. The tube circuitry is first rate with short signal paths and low noise design. Finally, precision components are used to provide the transparency and air that are so critical to accurate musical reproduction.

The eight tubes, large power and output transformers, and power-supply capacitors stand proud of the amp’s top deck. Rogue offers an optional tube cage. A fully tubed design capable of delivering 100Wpc. This amplifier measures 18”W x 5.5”H x 17”D and weighs a hefty 50 pounds, the faceplate of machined, anodized aluminum is available in silver, or the black. The front panel sports only the pushbutton power switch. The Atlas Magnum II employs two 12AX7 and two 12AU7 tubes, as well as four KT120 output tubes.

On the rear panel are RCA jacks for the left and right channel inputs, and one pair of gold-plated speaker binding posts per channel. The Atlas Magnum II’s output transformers have taps for 4 and 8 ohms, but changing from one impedance to the other requires removing the top panel, and moving the wires connected to each positive speaker terminal to the appropriate terminal on each output transformer. There are an inlet for the removable power cord, and a fuse bay. The price is aroung $3,000.

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