{"product_id":"klh-model-four-acoustic-suspension-loudspeaker-system","title":"KLH Model Four Acoustic Suspension Loudspeaker System","description":"\u003cdiv class=\"col_narrow\"\u003e\n  \u003ch2 class=\"subhead margin\"\u003eClassic Acoustic Suspension Engineering\u003c\/h2\u003e\n  \u003cp\u003eAt the heart of the KLH Model Four is the acoustic suspension sealed-enclosure design pioneered by Edgar Villchur and Henry Kloss and later refined by Kloss at KLH. By using the air inside the cabinet as a controlled spring for the woofer, this design delivers tight, accurate bass with excellent transient response and low distortion.\u003c\/p\u003e\n  \u003cp\u003eUnlike conventional ported speakers, the sealed enclosure also provides greater placement flexibility. The Model Four can perform effectively as close as six inches from a wall, delivering powerful, controlled sound without requiring the speaker to extend far into the room.\u003c\/p\u003e\n  \u003ch2 class=\"subhead margin\"\u003eTrue Three-Way Acoustic System\u003c\/h2\u003e\n  \u003cp\u003eThe Model Four uses a dedicated three-way driver configuration for balanced, detailed reproduction across the frequency range. An 8-inch pulp-paper cone woofer delivers controlled low-frequency performance, while a dedicated 4-inch pulp-paper cone midrange provides clear vocals and natural instrument detail.\u003c\/p\u003e\n  \u003cp\u003eA 1-inch aluminum-dome tweeter with a soft rubber surround handles high frequencies with crispness and clarity. By assigning bass, midrange, and treble to purpose-built drivers, the Model Four maintains excellent definition and coherence even during complex musical passages.\u003c\/p\u003e\n  \u003ch2 class=\"subhead margin\"\u003eAcoustic Balance Control for Your Room\u003c\/h2\u003e\n  \u003cp\u003eRoom acoustics can dramatically affect loudspeaker performance, so the Model Four features KLH's three-position Acoustic Balance Control. Inspired by a feature originally introduced by KLH in the late 1960s, the rear-mounted switch allows midrange and high-frequency output to be reduced by 1.5dB or 3dB.\u003c\/p\u003e\n  \u003cp\u003eThis provides an easy way to optimize the speaker for different room sizes, placement positions, and reflective surfaces, helping maintain a smooth, natural tonal balance across a variety of listening environments.\u003c\/p\u003e\n  \u003ch2 class=\"subhead margin\"\u003eWide-Baffle Design \u0026amp; Flexible Placement\u003c\/h2\u003e\n  \u003cp\u003eA hallmark of classic KLH loudspeaker engineering, the Model Four's wide front baffle helps minimize edge diffraction and promote smooth sound dispersion. The result is a broad, stable soundstage with precise imaging and natural midrange presence.\u003c\/p\u003e\n  \u003cp\u003eCombined with a cabinet measuring just 8.25 inches deep without its riser base, the Model Four is the most placement-friendly loudspeaker in the KLH Model Collection. Its compact depth and sealed acoustic suspension architecture make it ideal for rooms where positioning speakers several feet away from a wall isn't practical.\u003c\/p\u003e\n  \u003ch2 class=\"subhead margin\"\u003eMid-Century Style with Modern Refinement\u003c\/h2\u003e\n  \u003cp\u003eThe Model Four celebrates KLH's heritage with real wood veneer, classic proportions, and a distinctive wide-baffle cabinet inspired by the company's iconic mid-century loudspeakers. A removable magnetic grille maintains a clean appearance with no visible mounting hardware.\u003c\/p\u003e\n  \u003cp\u003eAn included powder-coated steel riser base angles the speaker upward by 6 degrees for improved driver alignment with the listening position while giving the Model Four its signature low-profile stance.\u003c\/p\u003e\n  \u003ch2 class=\"subhead margin\"\u003eDesigned for Modern Hi-Fi Systems\u003c\/h2\u003e\n  \u003cp\u003eFive-way gold-plated binding posts provide secure connectivity with a wide range of speaker cables and terminations. With a 6-ohm nominal impedance and recommended amplification of 30 to 150 watts, the KLH Model Four pairs easily with a broad selection of integrated amplifiers, stereo receivers, and hi-fi separates.\u003c\/p\u003e\n  \u003cp\u003eBlending classic acoustic suspension performance, a true three-way driver system, adjustable room tuning, and exceptional placement flexibility, the KLH Model Four brings the character of classic American hi-fi to today's listening spaces.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"KLH","offers":[{"title":"English Walnut","offer_id":47534135672916,"sku":"KLH:KMS-400-WLN-VPR","price":1999.98,"currency_code":"USD","in_stock":true},{"title":"Black Ash","offer_id":47534135705684,"sku":"KLH:KMS-400-BLK-VPR","price":1999.98,"currency_code":"USD","in_stock":true},{"title":"White Oak","offer_id":47534135738452,"sku":"KLH:KMS-400-OAK-VPR","price":1999.98,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0572\/3281\/8260\/files\/KMS-400-WLN-1.jpg?v=1787259400","url":"https:\/\/www.audioadvice.com\/products\/klh-model-four-acoustic-suspension-loudspeaker-system","provider":"Audio Advice","version":"1.0","type":"link"}