This Speaker and Amp package includes 2 Yamaha A12 12" 2-Way Loudspeakers, Yamaha P3500S Dual Channel Power Amp, and 2 - 25' Speakon to 1/4" Speaker Cables. Yamaha's A12 12" 2-Way Loudspeakers The Yamaha A12 speakers from their A Series are designed for live PA system use. They are 2-way PA speakers featuring bass reflex, trapezoidal cab design, heavy grille, recessed handles, and black carpet covering. The A12 has a 12" woofer, 1" high-frequency horn, 300W program handling (600W peak), and 125dB SPL. Bass reflex, trapezoidal cab design. 2-way system with 12" woofer, 1" diaphragm HF horn, 300W/600W program/peak power handling,125dB max SPL, and 65Hz -20kHz frequency range. Yamaha's P3500S Dual Channel Power Amp The P-Series amplifiers deliver pro-quality power in a wide range of configurations. This Yamaha power amp features both XLR and 1/4" TRS inputs, Neutrik Speakon, phone plug, and 5-way binding post outputs. Other features on the Yamaha P3500S dual channel power amplifier include sweepable high- and low-pass filters, Yamaha's exclusive EEEngine technology for high performance with exceptional efficiency, and a variable speed fan. Rackmountable 2U chassis. Delivers 450W/Ch. @ 4 ohms, 350W @ 8 ohms, and 900W @ 8 ohms bridged. Gear One's Speakon to 1/4-Inch Speaker Cable An inexpensive way to get connected, these 16-gauge speaker cables are 25' long and feature a Speakon connector on one end and a 1/4" connector on the other.