Instructions on how to use DR1, DR2 & DR1-R Acoustical Calibrators

Very accurate testing, calibration and comparison of SLMs or HPs

Very accurate testing, calibration and comparison of testing and recording MICs or HPs

Very accurate testing, calibration and comparison of SLMs or EPs

Use of DR1-R coupler for volume calibration during hearing test with AUDIO-CD

Other uses include: very accurate testing, calibration and comparison of Audiometers very accurate calibration of signals from AUDIO-CD (compact disc for testing of hearing) calibration and adjustment of maximum safe levels of sound from headphones and earphones very accurate testing of hearing and critical listening experiments (labs, studios, etc.) Abbreviations: SLM - Sound Level Meter, MIC - Microphone, HP - Headphone, EP - Earphone, CD - Compact Disc

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