Hafler

3 месяца назад

This video reviews the Hafler DH-220 power amplifier, a vintage audio device from the 1980s. The reviewer examines the amplifier's features, performance, and sound quality, including its frequency response, THD, and power output. They also discuss the amplifier's design and how it compares to its specifications.

1 год назад

This video shows how to fix a common issue with the Hafler DH-110 preamp. The issue involves a muting circuit that can cause one channel to cut out. The video demonstrates how to replace two J112 fets and an LM 393 comparator chip to resolve the problem. The video also shows the repaired preamp in action.

12 лет назад

This video showcases a Hafler DH-101 preamplifier, a vintage audio component that has been recapped and restored. The video highlights the preamp's design, including its all-transistor circuitry and the use of high-quality components. The presenter also discusses the preamp's shortcomings, such as its low-quality RCA jacks and switches, and offers suggestions for improvement.