The Mark Levinson No.30 has enjoyed a continuing residence in Class A of <I>Stereophile</I>'s "Recommended Components" listing since it was reviewed in our February 1992 issue (Vol.15 No.2). Madrigal includes the No.30 in its "Reference" series, by which they mean that the unit will not become obsolete. Thus, when new technology became available, the No.30.5 update was introduced, consisting of a single digital-receiver printed circuit board to replace the original's three boards, and a new digital-filtering board. This revision was favorably reviewed by <I>Stereophile</I> in October 1994 (Vol.17 No.10).
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