The 104.2 is a high-efficiency speaker, by high-fidelity standards, being rated to deliver a sound-pressure level (SPL) of 92 dB at 1 meter on axis with a pink-noise input of 2.83 volts. It is recommended for use with amplifiers rated to deliver between 25 and 200 watts to …

A 2.5 cm dome type tweeter is installed in the high range. The vertical twin layout with two skorkers and one tweeter between them is adopted for the middle and high range, and sound image localization is improved. A unique CLM (Conjugate Load Matching) is …

2024年7月20日 · Rather than going the obvious route to high sensitivity – lighter cones or horn-loading – KEF’s engineers decided to make the 104/2 a 4-ohm load. This approach offers gains in terms of acoustic output, though at the expense of demanding extra current from …

2025年2月13日 · In 1984 KEF introduced the Model 104/2 – a loudspeaker that was to develop a strong reputation around the world for its technical innovation and acoustic performance. Such was its success that it remained in production for over ten years. This pair is in excellent condition.

2004年4月16日 · Description: D’appolito design mid/tweet/mid (MTM) with twin 8” woofers in a coupled chamber. 4th order advanced crossover. Frequency response: 55hz-22khz +/- 2db. In room: about 30hz-22khz. Dimensions: 35.5” x 11 x 16.4 in 70.5 lbs each. Technology comments. This speaker is a timeless classic of accurate detail, dynamics and musical ability.

2008年4月21日 · It's a modified bandpass woofer loading design. If the woofers are good, they would benefit tremendously from a changing out of the electrolytic capacitors in the crossover.

2007年1月15日 · KEF's 104 model saw various versions and the 104/2 was the final result of the product's evolution. This relatively high sensitivity loudspeaker, at 92dB/W/m at 4 ohms, produced frequencies from 55Hz to 20kHz (+-2dB) with five drivers.