Frequency characteristics: 40Hz-20kHz ± 1dB. Total harmonic distortion: 0.15% or less (100Hz-20kHz). Power supply: AC100V, 50Hz / 60Hz. External dimensions: Width 430 x Height 53 x Depth 260 mm. The operation has been confirmed.Since it is a used item, it has scratches and dirt. International Buyers - Please Note. The item "Technics RP-9022 dbx noise reduction system unit NR unit Used From Japan F/S" is in sale since Monday, December 13, 2021. This item is in the category "Musical Instruments & Gear\Pro Audio Equipment\Signal Processors/Rack Effects". The seller is "sat-sa27" and is located in Kainan City. This item can be shipped worldwide.