Check the listing for details. RIAA Inverse Filter for testing RIAA Pre-Amp & make Aux Signal to Phono Gold RCA. Color: Green, Condition: New. Listed at 22.00 USD. MRIAA-Rev.3For sure the best product in the marketGold IN/OUT RCA ConnectorsDirect connection to RCA sockets. No wires from the PCB to the connectors = Minimal noise / RadiationStereo High Quality Passive inverse RIAA filter Gold RCA Input / Output connector Soldered for minimum noise and radiation matched Capacitors for maximum L & R channel balancefor testing RIAA Stage Pre-Amp & make Aux Signal to Phono With This Small PCB You Can test Phono Riaa input stage also you can play with this item CD,AUX,etc. with RCA Phono InputsOn Board MM, MC Level Switch -40dB / -60dB output This item is only PCB with components AssembledPCB Size: MRIAA-REV.3B 57mm*33mm Green double-sided HAL,FR4 1.6MMApplications: DIY Home / Integrated Amplifier / Pre-Amplifier / Test Equipment