KLH Model Seven (1962–1966)
The KLH Model Seven is a compact two-way acoustic suspension loudspeaker that KLH produced from 1962 to 1966. Designed by Henry Kloss, it was positioned as the entry-level model in the KLH line — a smaller, more affordable sibling to the Model Six, and a step below the flagship Model Twelve. It sold for $119.00 each.
The cabinet is sealed, with a curved front panel rather than a flat baffle, and houses a 10-inch acoustic suspension woofer paired with a 2-inch cone tweeter, crossing over at 3,000 Hz. The rated frequency response is 35 to 20,000 Hz, impedance is 8 ohms, and power handling is listed at 25 watts max (20 watts RMS). Each speaker measures 18"H x 12"W x 9"D and weighs 25 pounds.
Period critics praised the Model Seven for its smooth, accurate midrange and relaxed top end, though they noted it couldn't match the bass extension of the larger Model Six. High Fidelity (March 1967, p.60) ran KLH's own advertising for the Model Seventeen — a follow-up priced at $69.95 — which claimed that model was designed to be the first modestly priced loudspeaker with wide range and low distortion even at the lowest frequencies; the Seven occupied a similar value niche in the line a few years earlier.
A common restoration step is replacing the original capacitors in the crossover. As with many KLH speakers of this era, the original foam surrounds may have deteriorated and require replacement.
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