Rogue Audio Atlas Power Amp



The Atlas Magnum III was designed to box outside of its weight class and in that spirit it is truly a world champion. 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 our 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.

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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.

– General Features and Specifications:

– 100 WPC
– 20Hz-30KHz bandwidth
– Ultralinear/Triode switch
– 4 and 8 ohm transformer taps
– Slow start turn on sequencing

– Massive high storage linear (!) power supply
– (2) 12AX7, (2) 12AU7, (4) KT120 output tubes
– Gold plated RCA inputs
– Gold plated binding posts
– Machined aluminum faceplate
– All precision components
– Heavy (2 ounce) copper circuit board
– Full tube cage/cover (optional)
– Fully tested, burned-in, and auditioned
– Detachable IEC power cord
– 18″ W x 17″D X 6.75″ H (actual)
– 25″ W x22″D X 11″ H x 55 LBs (shipping dimensions)
– power requirements: 120V/240V – 50/60Hz
– Entirely designed and hand built in the USA 

Additional information

Weight125 lbs
Dimensions17.5 × 28 × 10.25 in
Power Output per Channel

150W @ 2, 4 or 8 ohms

Number of Channels


Total Harmonic Distortion

0.5% maximum harmonic distortion at any power level from 250 milliwatts to rated power, 20Hz to 20kHz

S/N below rated output


Dynamic Headroom


Damping Factor


Rated Power Band

20Hz to 20kHz

Frequency Response

+0, -0.25dB from 20Hz to 20kHz
+0, -3dB from 10Hz to 70kHZ

Speaker Binding Post Type

Patented Solid Cinch Speaker Binding Posts

Circuit Configuration

Unity Coupled

Circuit Design

Vacuum Tube

Output Type

Unity Coupled Output Transformer

Balanced Input



Small Signal Tubes, Green, Blue and Natural

Chassis Style

Bead blasted black anodized aluminum with matte finish carbon fiber side panels


17.5" x 10.25" x 28"


125 lbs

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