Tenders Are Invited For 40 Professional Monitoring Headphones For Radio Studio. The Earphones Supplied Must Be Suitable For Intensive Professional Use In Radio Studios, For Audio Production And Monitoring That Meets The Following Characteristics: - Closed Circumaural Design - Dynamic Transducer With Neodymium Magnet - Transducer Diameter: 40Mm - Frequency Response In The Range Of 5Hz To 25Khz. - Nominal Impedance At 1Khz Of 40 Ohms With A Tolerance Of +/-10% - Maximum Permissible Input Power: Minimum 500Mw - Maximum Weight Of The Earphones Without Cable: 275 Grams - Sensitivity At 1Khz: Minimum 97Db/Mw - Adjustable And Padded Headband - Replaceable Ear Pads Of Synthetic Leather Type Material

40 Professional Monitoring Headphones For Radio Studio. The Earphones Supplied Must Be Suitable For Intensive Professional Use In Radio Studios, For Audio Production And Monitoring That Meets The Following Characteristics: - Closed Circumaural Design - Dynamic Transducer With Neodymium Magnet - Transducer Diameter: 40Mm - Frequency Response In The Range Of 5Hz To 25Khz. - Nominal Impedance At 1Khz Of 40 Ohms With A Tolerance Of +/-10% - Maximum Permissible Input Power: Minimum 500Mw - Maximum Weight Of The Earphones Without Cable: 275 Grams - Sensitivity At 1Khz: Minimum 97Db/Mw - Adjustable And Padded Headband - Replaceable Ear Pads Of Synthetic Leather Type Material