Blackstar Amplification HT-CLUB 40 COMBO is a 40 Watt valve combo with 2 x ECC83, 2 x EL34 and two footswitchable channels (footswitch included) - boutique clean and high gain overdrive. It features a 12" Celestion speaker, and a series effects loop. The patented Infinite Shape Feature (ISF) allows you to infinitely adjust the sound of your amp, from a classic British crunch to a modern high-gain sound. The digital reverb with Dark/Bright switch provides a wide range of reverb sounds, from subtle ambience to lush, cavernous decay.