With increased power and newly added features, the Double Four Plus BG-80 is a worthy successor to PJB’s legendary BG-75 Double Four model. The BG-80 is a 90Watt single channel bass combo with two four-inch speakers and a 3 band EQ that is perfectly tailored for bass guitar. Other features include an auxiliary input for iPad/iPod, smart phone or drum machine, stereo headphone–out jack and a line out for recording. Recorded music sounds great through the Bluetooth function (V5.1 with aptX HD). In addition, the Double Four Plus is equipped with a DC input (USB Type-C port) connection which supports a mobile power bank of USB PD (Power Delivery) Protocol. This provides the ultimate in “Tone To Go” and busking possibilities, even where AC power isn’t available. The BG-80 is ideal for all kinds of basses, and can handle the open B string on a 5- string bass with ease. So how do you get the ultimate bass sound from a small speaker cabinet? PJB has applied its cutting-edge experience in designing small speakers to achieve a 4 inch driver with Swiss watch precision. Using the extensive Phil Jones R&D facility which includes the largest an-echoic chamber in the bass guitar amplifier industry and the transducer Klippel measurement system with laser technology, PJB was able to develop the proprietary PJB “long-thro” 4-inch speakers that have full frequency range up to the highest audio frequencies. Not only does this give greater clarity and transparency to your instrument, but also