The Rega Solis is the ultimate expression of Rega's power amplifier engineering, a reference-grade stereo chassis designed to drive the world's most demanding loudspeakers with effortless authority and absolute transparency. Hand-built in England, the Solis represents the culmination of four decades of solid-state development, refining the legendary circuit topologies of the Elicit and Osiris into a new benchmark of performance. With a massive 168 Watts per channel into 8Ω (rising to 305 Watts into 4Ω), fully symmetrical discrete circuitry, and a dual-mono power supply architecture, the Solis delivers music with breathtaking dynamic range, iron-fisted control, and an organic, fluid musicality that gets straight to the heart of the performance. Key Features: Massive Power Output: Delivers a robust 168 W per channel into 8 Ω and a staggering 305 W per channel into 4 Ω, ensuring compatibility with virtually any loudspeaker. Fully Symmetrical Circuitry: Features a fully discrete, differential, symmetrical circuit topology for low distortion and high linearity throughout the signal path. Dual Custom Toroidal Transformers: Powered by two ultra-low noise 330VA toroidal transformers and 40,000µF of smoothing capacitance per channel for immense current delivery. Sanken Output Transistors: Utilizes twelve 130W Sanken high-frequency multi-emitter output transistors in a triple high-current output stage for ultimate stability. Balanced & Unbalanced Inputs: Offers both XLR Balanced and RCA Unbalanced inputs, plus a 12V trigger for seamless integration with the Mercury Pre-amplifier. Reference Build Quality: Housed in a custom CNC-machined aluminum chassis with extensive heatsinking and state-of-the-art thermal protection. Uncompromising Power and Control The Solis is built to control the most difficult speaker loads without breaking a sweat. At its core are twelve Sanken 130-Watt high-frequency output transistors, arranged in a "triple" high-current output stage. This immense reserve of power allows the Solis to double its output into 4Ω loads, providing the grip and speed necessary to reproduce deep bass transients and complex orchestral crescendos with zero compression or strain. Symmetrical Perfection To achieve the lowest possible distortion and the highest linearity, the Solis employs a fully symmetrical circuit topology. From the cascoded differential input amplifier to the driver stages, the signal is balanced and protected from interference. The low-level driver stages are fed by a regulated, symmetrical tracking power supply with a low-noise voltage reference, ensuring that the delicate input signal is amplified with absolute purity before it reaches the power stages. Dual-Mono Power Architecture Great power requires a great foundation. The Solis is powered by two custom-designed, low-noise 330VA toroidal transformers—one for each channel. These are backed by a colossal 40,000µF of Rega K-Power smoothing capacitors per side. This dual-mono approach ensures that heavy demands in one channel never affect the performance of the other, preserving the stereo image's width and stability even during the most demanding musical passages. The Perfect Partner While the Solis is a world-class amplifier in its own right, it was designed alongside the Mercury Pre-amplifier to create a flawless system. When paired via balanced XLR connections, they form a fully symmetric, discrete playback chain from source to speaker. The 12V trigger integration allows for unified power control, making the Solis/Mercury stack not just a sonic powerhouse, but a seamless, user-friendly centerpiece for any reference hi-fi system. The Listening Room Difference We’re a third-generation family business with a brick-and-mortar showroom in Chestertown, Maryland, and a reputation built on trust, not hype. Whether you’re visiting in person or ordering online, we bring decades of experience, personalized service, and honest guidance to every interaction. We don’t just ship boxes. We help build systems, answer your questions like real humans, and make sure every detail of your setup is right, from the cables to the final connection. Our passion is helping you get the most out of your gear, with support that lasts well beyond the sale. Specifications Power Output (8 Ω) 168 W RMS per channel Power Output (4 Ω) 305 W RMS per channel Inputs 1x Balanced XLR Pair, 1x Unbalanced RCA Pair Input Sensitivity (RCA) 820mV at 35kΩ Input Sensitivity (XLR) 1.64V at 26kΩ Gain 33.3 dB Frequency Response 15Hz - 30kHz (-0.5dB) at 100W THD+N Typically 0.015% at 1kHz (100W into 8Ω) Power Consumption 500W (Typ), 0.4W (Standby) Dimensions (W x H x D) 435 x 140 x 385 mm (17 x 5.5 x 15 in) Weight 24.8 kg (54.7 lbs)
