D'Addario Helicore Cello String Set, 1/4 Scale, Medium Tension All Mixers Two position Mode switch gives

Two position Mode switch gives you a choice of 4 or 6-stage phasing

but the B2520 PRO puts it all in a convenient

protected doesn't have to mean expensive

The K900FX gives you 3 independent stereo channels

• UNBOXED DIMENSIONS (W X H X D): 16

D'Addario Helicore Cello String Set, 1/4 Scale, Medium Tension All Mixers Two position Mode switch givesScaled to fit 1 4 size cello with a playing length of 21 1 2 inches (545mm), medium tension strings are optimized to the needs of a majority of players. Helicore cello strings are crafted with a multi stranded steel core, resulting in optimal playability while producing a clear, warm tone. The smaller string diameter provides quick bow response. Premium quality materials combined with skilled workmanship produces strings known for excellent pitch