The UAD Ruby '63 Top Boost Amplifier plug-in delivers the iconic British valve amp sound cherished by legendary artists for decades. This plug-in captures the essence of the vintage Top Boost amplifier, offering a rich palette of tones from sparkling cleans to complex overdrives and classic vibrato effects. Modeled from the acclaimed UAFX pedal, it provides the authentic character and warmth of the original amp, enabling producers and musicians to achieve studio-quality sounds without the need for hardware.

In addition to the core amplifier tones, the Ruby '63 plug-in features emulations of classic boost pedals, including the renowned '60s Dallas Rangemaster and the preamp from a '70s Maestro EP-3 tape delay. These boosts add distinctive layers and texture, enhancing the tonal palette with vintage character. The plug-in includes three distinct Top Boost settings—Normal, Brilliant, and Vibrato—allowing users to tailor their sound to various music styles such as rock, pop, country, and metal. A selection of curated presets helps users quickly find inspiring tones or fine-tune their own signature sound.

Ruby '63 also offers six meticulously crafted speaker cabinet simulations, featuring iconic Celestion speakers and authentic microphone placements to recreate legendary room ambiances. These cabinets range from the warm and open 2x12 combos with Celestion Silver Bulldog or Blue Bulldog speakers to more modern takes with G12Hs models, providing options for everything from bright chime to muscular midrange. This detailed speaker and mic modeling ensures the plug-in delivers the depth and realism of a professional recording environment, making it a powerful tool for musicians seeking classic British amp tones.