Rogue Audio Cronus Magnum III Integrated Tube Amplifier

The Rogue Audio Cronus Magnum III is a high-performance tube integrated amplifier that combines the warmth and dimensionality of vacuum-tube amplification with the power, control, and flexibility required for a modern high-end audio system. Delivering 100 watts per channel in Ultralinear mode, the Cronus Magnum III has the muscle to drive a wide range of demanding loudspeakers while retaining the natural tonal character, spacious soundstage, and musical presentation that make tube amplification so compelling.

Designed and hand-built in the USA, the Cronus Magnum III brings together a tube preamplifier stage and Rogue Audio's high-powered tube amplifier technology in a single chassis. An oversized linear power supply provides substantial energy reserves for strong bass response, dynamic impact, and effortless reproduction of demanding musical passages.

Ultralinear and Triode Listening Modes

One of the Cronus Magnum III's most useful features is its switchable Ultralinear/Triode operation.

In Ultralinear mode, the amplifier delivers up to 100 watts per channel for greater output, tighter bass, and increased control. Switch to Triode mode and output becomes approximately 55 watts per channel, providing a softer, more relaxed presentation associated with classic triode tube amplification.

This gives listeners the ability to tailor the amplifier's character to their speakers, music, and personal listening preferences.

Built-In MM/MC Phono Stage

Vinyl enthusiasts can connect a turntable directly to the Cronus Magnum III thanks to its integrated moving magnet and moving coil phono preamplifier.

Selectable 45 dB and 60 dB gain settings, along with multiple cartridge loading options, allow the phono stage to accommodate a broad selection of MM and MC cartridges. This makes it possible to build a serious analog playback system without immediately requiring a separate phono preamp.

Dedicated Headphone Amplifier

The Cronus Magnum III also incorporates a powerful 2-watt headphone amplifier using MOSFET buffers. Inspired by technology developed for Rogue Audio's dedicated RH-5 headphone amplifier, the circuit provides ample current for driving a wide range of high-performance headphones.

Whether listening through loudspeakers, headphones, or vinyl, the Cronus Magnum III is designed to serve as the centerpiece of a complete two-channel audio system.

Designed for Real-World High-End Systems

The Cronus Magnum III features 4- and 8-ohm transformer taps for speaker matching, gold-plated RCA connections and binding posts, buffered variable outputs for integrating a powered subwoofer, and active outputs that can also be used for bi-amping.

Short signal paths, a low-noise circuit design, precision components, a heavy 2-ounce copper circuit board, and a substantial linear power supply help provide the transparency, dynamic headroom, and low noise floor expected from a serious high-end integrated amplifier.

Rather than requiring separate preamplifier, power amplifier, phono stage, and headphone amplifier components, the Rogue Audio Cronus Magnum III brings these capabilities together in one powerful, versatile component.

Key Features

• 100 watts per channel in Ultralinear mode
• 55 watts per channel in Triode mode
• Switchable Ultralinear/Triode operation
• Tube preamplifier and power amplifier architecture
• Built-in MM/MC phono stage
• 45 dB and 60 dB phono gain settings
• Multiple phono cartridge loading options
• 2-watt MOSFET-buffered headphone amplifier
• 4- and 8-ohm speaker transformer taps
• Oversized high-storage linear power supply
• Gold-plated RCA inputs
• Gold-plated speaker binding posts
• Buffered variable outputs for subwoofer integration
• Active outputs for subwoofer or bi-amping
• Machined aluminum faceplate
• Aluminum remote control with volume and mute
• Optional full tube cage
• Designed and hand-built in the USA

Specifications

Power Output: 100 watts per channel Ultralinear / 55 watts per channel Triode
Frequency Response: 5 Hz–30 kHz ±1 dB
Inputs: Phono, Line 1, Line 2, Line 3
Phono Gain: 45 dB MM / 60 dB MC
Headphone Output: 2 watts
Speaker Outputs: 4-ohm and 8-ohm transformer taps
Tube Complement: (2) 12AX7, (3) 12AU7, (4) output tubes
Dimensions: 18" W × 17.5" D × 6.75" H
Power Requirements: 120V/240V, 50/60Hz
Manufactured: Designed and hand-built in the USA

Experience the Rogue Audio Cronus Magnum III at The Grid HiFi

The Rogue Audio Cronus Magnum III is available from The Grid HiFi, Houston's destination for high-end audio, premium two-channel systems, and home theater.

At The Grid, we believe choosing an amplifier is about more than comparing specifications. The amplifier needs to work with your loudspeakers, listening room, source components, and the way you actually listen to music. Our team can help determine whether the Cronus Magnum III is the right foundation for your system and recommend complementary speakers, turntables, streamers, DACs, cabling, and other components.

Whether you're building your first serious tube HiFi system, upgrading from a solid-state integrated amplifier, or looking for an American-made tube amplifier with enough power to drive a wide range of high-performance loudspeakers, the Cronus Magnum III offers an impressive combination of tube character, power, flexibility, and value.

The Grid offers expert system consultation, nationwide sales and shipping, and a premium Houston HiFi showroom, giving music enthusiasts access to some of the world's leading high-performance audio brands.

Looking for the Rogue Audio Cronus Magnum III in Houston or anywhere in the U.S.? Contact The Grid HiFi for current availability, system-matching advice, trade-in options, and assistance building a complete high-performance two-channel audio system.

Shop the Rogue Audio Cronus Magnum III at The Grid HiFi and experience a powerful, versatile, American-made tube integrated amplifier designed to put music at the center of your system.