Amazon.com: Hosa MIT176 Impedance Transformer XLR3F to 1/4 Inch TS : Musical Instruments
Amazon.com: Cloud Microphones - Cloudlifter CL-Z - Vari-Z Mic Activator - Ultra-Clean Microphone Preamp Gain Variable Impedance Control - USA Made : Musical Instruments
Amazon.com: Hosa MIT-156 XLR3F to 3.5 mm TRS Impedance Transformer, 18 Inch : Musical Instruments
Amazon.com: Pyle Premium Direct Injection Audio Boxes - Passive DI Unit Hum Eliminator w/Input Attenuator to Connect Guitar and Bass w/ 1/4'' Impedance Transformer Connector to Balanced & Unbalanced XLR : Musical
Amazon.com: Shure A85F Line Matching Transformer - Low Z Female XLR to High Z 1/4-Inch Phone Plug connects a Balanced Low Impedance Microphone Output to an Unbalanced High Impedance Input : Everything
Amazon.com: PYLE-PRO Premium Direct Injection Audio Box - Passive DI Unit Hum Eliminator w/ Input Attenuator to Connect Guitar & Bass - 1/4 Inch Impedance Transformer Connector to Balanced & Unbalanced XLR-PDC22 :