BC Audio’s new Amplifier No. 9 is a 45-watt non-Master-Volume amp with variable Boost. It uses a pair of KT66s and a GZ34 rectifier with three 6SL7 preamp tubes and has controls for Normal Volume, Bright Volume, Boost, Presence, and Depth. BC’s Amplifier No. 10 uses a pair of EL34s and four 6SL7s, and is BC Audio’s first amp with Bass, Mid, and Treble controls. Other controls are Gain, Gain Boost, Volume, Volume Boost, Presence and Depth. Gain Boost and Volume Boost are independently foot-switchable with the included dual footswitch. Learn more at bcaudio.com.