TC Electronic BQ500 Bass Head Shielding It features 2 phase shifters

It features 2 phase shifters

fade in and release/decay

But in typical Fender fashion they rebranded it and charged more for it

Middle & Neck in Parallel

a noise generator with continuously variable color and even a realistic sounding digital spring reverb to add spaciousness and a sense of scale to your music

TC Electronic BQ500 Bass Head Shielding It features 2 phase shiftersBQ500 500 Watt Portable Bass Head with Mosfet Preamp and Thrust Compressor 500 Watt portable micro bass head amplifier for stage and studio Compact and lightweight design for ultimate portability Cutting edge Class D amplifier technology for incredible power and sonic performance High voltage Mosfet preamplifier for authentic sound and feel of a tube amp Thrust compressor for ultimate punch and to capture every nuance of your playing 4 band EQ section