The Trinity Preamp is a dual-channel, external, beltclip model with adjustable gain-vol-bass-mid-treble for each channel.
The Trinity Pro Preamp allows for individual sound adjustment of mic and pickup. It is built applying K&K's "Silent-Filter-Technology" and their full size component philosophy. They use full size capacitors and other parts because they find they sound better that the miniature components in most competitors' preamps. Outside accessible volume controls and internal adjustable gain/EQ controls with +/- 20 dB bass, midrange and treble filters (trimpots) for each individual channel make this little preamp extremely versatile and powerful. The Trinity Pro is the latest version of this preamp. It has been completely redesigned and now provides a phase switch to the microphone channel for improved feedback resistance and a smoother overall tone.