This audio jack board replaces the original Kurzweil K250 jack board mounted to the back panel. It comes with brand new 1/4" phono TRS jacks and new XLR jacks. Unlike the original boards, this board has an active feedback transformer driver circuit for the two XLR audio Line Outputs, providing improved THD for frequencies below 300Hz. This version of the jack board includes Triad Magnetics audio transformers with equivalent performance to the original Kurzweil KMS transformers while gaining these lower THD benefits from active feedback circuit. NOTE: There is also a version of this board with Lehle brand Pro-Audio transformers pre-installed with ultra-low distortion available.
Additional key benefits:
- Active feedback transformer driver, improves low frequency THD
- Unbalanced TS High & Low outputs converted to Balanced TRS High & Low
- Line Input jack has 48V Phantom Power switch to direct power microphones
- Frequency response switch for Line / Mic input. Flat or high frequency pre-emphasis
- Built in DI box with Ground Lift switches for Line Out and Line In