Hafler DH-102
Little is documented about the Hafler DH-102. No full magazine review of it appears in the archive, and Hafler's own documentation hasn't surfaced here. What the record shows is that the DH-102 was a moving-coil pre-preamplifier, or "head amp," with a primary application of being built into the DH-101 preamp (Audio, March 1980, p.29). Audio's product note (March 1980, p.29) said the installation could be done in under an hour. It also said the board could be adapted to other preamplifiers providing 30 mA of well-filtered supply.
Dealer classifieds in the same magazine tracked it across several years. A June 1979 ad lists "DH-102 head amp" right alongside the DH-101K ($199.95) and DH-101A ($295.95) (Audio, June 1979, p.114). By June 1982, a dealer's stock list shows the DH-102 at $55.00 (Audio, June 1982, p.76). So it was on sale by mid-1979 and still listed in mid-1982, always as the quiet companion to the DH-101 and never a headline product.
Known specs, thin as they are:
- Moving-coil phono pre-preamplifier (head amp)
- Designed for internal installation in the Hafler DH-101; install time under an hour per Audio
- Adaptable to other preamps providing 30 mA of filtered power
- $55.00 in a June 1982 dealer ad
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