Hafler 101A (late 1970s–early 1980s)

Name: Hafler 101A
Brand: Hafler

Little is documented about the Hafler 101A beyond its appearances in period audio classifieds. No full review, no manual, and no spec sheet have surfaced in the archive. What the record shows is this: the 101A was sold as the DH-101A, the factory-wired version of Hafler's DH-101 preamplifier. The DH-101K was the build-it-yourself kit.

A dealer ad in Audio (May 1979, p.114) stocked Hafler's preamp, head amp, amplifier, and accessories. It priced the DH-101A at $295.95 and the kit at $199.95. By Audio (February 1981, p.75) the wired version had risen to $299.95 while the kit held at $199.95. An Audio (April 1980, p.105) ad similarly described the DH-101 as an eagerly awaited new preamp design at the same kit/wired prices. The DH-101A was Hafler's design, assembled and tested for you.

Beyond those price listings, the archive has no specifications, no measured performance data, and no confirmed production dates for the 101A. The DH-101AM and DH-101AP variants appear alongside it in the same ads (both at $399.95), and what separates them from the 101A is not documented in what has survived. The 101A was the assembled DH-101 preamp, advertised consistently in Audio from 1979 into 1982.