Hafler DH-104
A twenty-five dollar bracket that turned a shelf full of Hafler separates into a proper rack system.
Overview
The DH-104 is not a component in any musical sense. It's a rack-mount bracket - the hardware that adapts a Hafler chassis to a standard equipment rack - and it sold for $24.95 through the early 1980s. That number shows up again and again in the mail-order columns of the period. It's the most reliable fact about the part. Hafler's dealer network advertised the DH-104 rack mount at $24.95 across a long run of issues.
The DH-104 pairs a Hafler component with a rack. The DH-201 rack panel and DH-202 bridging kit show up in the same dealer listings, and the DH-104 sits in that family of small accessories, the bits that let an owner build a system instead of just buying boxes. Collectors chasing a DH-101 or DH-200 today often find the rack hardware has gone missing over the decades. That makes a clean DH-104 a slightly harder find than its modest price would suggest.
The DH-104 is a bracket. There's no circuit, no sound, no spec sheet worth quoting. It matters to someone restoring a period Hafler stack into a rack, and to hardly anyone else. The $24.95 price is the whole story the documentation tells: a factory accessory priced to move alongside the electronics, advertised by dealers like Oxford Audio Consultants and HCM Audio as part of the broader Hafler catalog. Audio (February 1981, p.75) ran the DH-104 at $24.95 in a dealer listing that also included the DH-101, DH-102, DH-103, and DH-105. It was one line item among the brand's support hardware.
For anyone assembling a period-correct Hafler rack, the DH-104 is the unglamorous piece that makes the rest fit. For everyone else, it's a reminder that the vintage audio hobby runs on brackets as much as amplifiers.
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