Yamaha MG20XU 20-Channel Mixer with USB Interface option-title-Snow Machine OPT4 is the backup channel

OPT4 is the backup channel of OPT2

PL or F mount lenses

cold light

is molded of ultra high-strength polypropylene copolymer resin

making it the perfect choice for busy guitarists

Yamaha MG20XU 20-Channel Mixer with USB Interface option-title-Snow Machine OPT4 is the backup channelYamaha MG20XU 20 In PA Mixer and USB Audio InterfaceRoad Tough. Studio Ready. For a more precise control and enhancement of your sound, XU models of the MG Series come equipped with a suite of Yamaha's renowned SPX effects. Featuring high resolution Chorus, Flanger, Distortions, Reverb and Delay, all with editable parameters, these are the same multieffects processors used on Yamaha's high end mixing consoles, giving you the tools you need to elevate