hˈoʊlt, ɐ nˈoʊɾᵻd ˈɔːdɪˌoʊ ˌɛndʒɪnˈɪɹ ænd ɹˈaɪɾɚɹ ʌvðə nˈaɪntiːnhˈʌndɹɪd sˈɪksti z ænd nˈaɪntiːnhˈʌndɹɪd sˈɛvənti z, slˈæmd dˈaɪnɐɡɹˌuːv æz ˌɪntɹədˈuːsɪŋ "pɹˈiːdɪstˈɔːɹʃən" ˌɪntʊ ðə mˈæstɚɹɪŋ pɹˈɑːsɛs, mˌeɪkɪŋ ðə ɹˈɛkɚdz sˈaʊnd wˈɜːs ɪf ðeɪ wɜː plˈeɪd ˌɔn hˈaɪkwˈɔlᵻɾi fˈoʊnoʊ sˈɪstəmz.
Holt, a noted audio engineer and writer of the 1960s and 1970s, slammed Dynagroove as introducing "pre-distortion" into the mastering process, making the records sound worse if they were played on high-quality phono systems.