RX Series CHANGING THE PERCEPTION OF THE PRACTICE AMP Huge sound on a budget is the best way to describe the newly redesigned RX Series. Our mission to deliver an amp line that achieves the tone of much larger combos and stacks has developed into quite a powerhouse. The RX tone circuits are designed to achieve the modern Randall tone which delivers plenty of tight low’s, as well as enough top end sizzle to satisfy any metal monster. The result is an overwhelming sound that will redefine the modern practice amp.