This month’s Playback column features two reviews: AlphaTheta euphonia and Sensaphonics dB Check Pro. This month’s Playback column features two reviews. Minnesota’s DJ Deets handles AlphaTheta’s new rotary mixer – the euphonia. Meanwhile Colorado’s Wesley King tests out Sensaphonics’ sound-level analyzer – the dB Check Pro. AlphaTheta euphonia If you look around the DJ market, you might say that the industry is in the midst of a rotary-mixer renaissance. Major brands have entered the fray, competing with a seemingly endless number of offerings from boutique manufacturers. Notably, AlphaTheta – the brand closely affiliated with Pioneer DJ – recently launched the…