The first consumer reel-to-reel tape player from KLH and the first consumer product to feature Dolby Noise Reduction.
Overview
The KLH Model Forty is the first consumer reel-to-reel tape player produced by KLH. It holds historical significance as the first consumer audio product to include Dolby Noise Reduction technology. Described as a pioneering consumer reel-to-reel, it was manufactured in limited numbers—approximately 12,000 units—with production lasting four years. It is distinct from the later KLH Model Forty-One.
Specifications
| Tape speeds | 7½ and 3¾ inches per second |
| Motor configuration | 3-motor |
| Head configuration | 3-head |
Design
The KLH Model Forty features a 3-motor, 3-head design, supporting tape operation at 7½ and 3¾ inches per second. It was engineered to integrate Dolby Noise Reduction, marking a milestone in consumer audio fidelity.
Context
As the first consumer product to feature Dolby Noise Reduction, the Model Forty stood apart in the early high-fidelity market. Approximately 12,000 units were made during its four-year production run.
Market
One contemporary review noted the Model Forty was priced at $600 (approximately £250 at the time), which was considered good value. Today, it is described as "Incredibly Rare," with collectors noting difficulty in sourcing replacement parts, such as the 1/4 inch capstan.
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