Perfect Tuning. Perfect Intonation. Instantly. With the simple push of a button on the new Peavey® AT-200™, guitar players can now create music in perfect tune and pitch. The Peavey AT-200 features Antares® Auto-Tune® for Guitar with String Tune and the Solid-Tune™ intonation system, two technologies that work together to bring the clarity of perfect pitch to this high-quality instrument.