{"product_id":"bose-acoustimass-5-series-ii-box-manual-wires-wall-hooks","title":"Bose Acoustimass 5 Series II * Box * Manual * Wires * Wall Hooks","description":"\u003cdiv class=\"widecol col-xs-48\"\u003e\n\u003cdiv class=\"row\"\u003e\n\u003cdiv class=\"col-xs-42 col-xs-push-3\"\u003e\n\u003ch1 class=\"content__headline\" itemprop=\"headline\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0673\/9204\/5301\/files\/ServiceSpeakers.png?v=1775659965\" alt=\"\"\u003e\u003c\/h1\u003e\n\u003ch1 class=\"content__headline\" itemprop=\"headline\"\u003eBose Acoustimass 5 series II Speaker System Review\u003c\/h1\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"maincol col-xs-26 col-xs-push-3\"\u003e\n\u003cdiv class=\"row\"\u003e\n\u003cdiv class=\"col-xs-48\"\u003e\n\u003cfigure class=\"article-image\" itemprop=\"image\" itemscope=\"\" itemtype=\"http:\/\/schema.org\/ImageObject\"\u003e\u003cimg itemprop=\"contentUrl\" data-src=\"images\/488\/bose-acoustimass-5-series-ii.jpg\" alt=\"Bose Acoustimass 5 series II\" class=\"teaser__image img-responsive image-replace\" src=\"https:\/\/www.hifi-classic.net\/images\/488\/bose-acoustimass-5-series-ii.jpg\" width=\"490\"\u003e\n\u003cfigcaption class=\"article-image__description\" itemprop=\"caption\"\u003eBose Acoustimass 5 series II\u003c\/figcaption\u003e\n\u003c\/figure\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003caside class=\"ad--google_adsense\" itemscope=\"\" itemtype=\"https:\/\/schema.org\/WPAdBlock\"\u003e\n\u003caside class=\"ad--google_adsense\" itemscope=\"\" itemtype=\"https:\/\/schema.org\/WPAdBlock\"\u003e\u003cins class=\"adsbygoogle\" data-ad-client=\"ca-pub-5026228084405652\" data-ad-slot=\"1251013726\" data-adsbygoogle-status=\"done\" data-ad-status=\"unfilled\"\u003e\n\u003cdiv id=\"aswift_1_host\"\u003eThe Bose Acoustimass 5, or AM-5, was not the first speaker system to use two small satellites and a separate bass module to provide maximum flexibility in placement with minimum visual impact, but it carried “invisibility” to new extremes while delivering surprisingly good sound quality and selling for a very attractive price.\u003c\/div\u003e\n\u003c\/ins\u003e\u003c\/aside\u003e\n\u003cp\u003eBose has now announced an improved version of this system, called the Acoustimass 5 Series II. The satellites have been restyled and actually reduced in size. Each measures only 6-3\/8 inches high and consists of two roughly cubical enclosures about 3-1\/8 inches square and 4-3\/4 inches deep. The cubes can be independently rotated through almost 360 degrees, permitting the spatial properties of the speaker’s sound to be modified by reflecting some of its output off nearby walls. (Controlling the ratio of direct to reflected sound in the listening area has long been a Bose feature.)\u003c\/p\u003e\n\u003cp\u003eEach sealed, molded-plastic cube contains a 2-1\/2-inch driver that operates above approximately 200 Hz. The enclosures are filled with sound-absorbing material. Unlike the satellites in the original AM-5, the Series II satellites cannot be taken apart; the two cubes are permanently attached. Several types of brackets and stands are available for mounting the satellites in a variety of positions. The drivers are magnetically shielded so they can be placed close to a TV monitor without distorting the color.\u003c\/p\u003e\n\u003cp\u003eMuch of the special quality of the Acoustimass system derives from its unique bass module. In the original system, the module contained two 6-1\/2-inch drivers whose front and rear outputs were loaded by separate cavities of different volumes. These cavities, resonant at frequencies about an octave apart, were ported to the room through a pair of 2-1\/2-inch holes. The bass enclosure was equivalent to a bandpass filter, about one and a half octaves wide, whose steep high-frequency cutoff slope effectively prevented harmonics of the bass frequencies from being propagated into the room.\u003c\/p\u003e\n\u003caside class=\"ad--google_adsense\" itemscope=\"\" itemtype=\"https:\/\/schema.org\/WPAdBlock\"\u003e\u003cins class=\"adsbygoogle\" data-ad-client=\"ca-pub-5026228084405652\" data-ad-slot=\"1251013726\" data-adsbygoogle-status=\"done\" data-ad-status=\"unfilled\"\u003e\n\u003cdiv id=\"aswift_2_host\"\u003eBose engineers had determined that when these harmonics were audible, they enabled listeners to localize the bass source in a three-piece system if it was placed at some distance from the satellites. The Acoustimass bass module's complete freedom from this effect made it possible to place it anywhere in the room without degrading the front stereo image.\u003c\/div\u003e\n\u003c\/ins\u003e\u003c\/aside\u003e\n\u003cp\u003eIn the original AM-5, however, there was a slight gap between the low-frequency limit of the satellites and the high-frequency limit of the bass module, producing a measurable “hole” in the system’s frequency response in the vicinity of 200 Hz. With many types of program material the hole was not noticeable, but at times it could be heard as a somewhat disembodied low-bass presence.\u003c\/p\u003e\n\u003cp\u003eThis problem has been eliminated in the Series II. The upper limit of the bass module’s frequency response was extended while retaining (and even increasing) its very steep cutoff slope. The result is said to be a smooth, undetectable transition from the bass module to the satellite drivers together with an actual extension of the low-bass response.\u003c\/p\u003e\n\u003cp\u003eThe new bass module contains two 5-1\/4-inch drivers (slightly smaller in diameter than the 6-1\/2-inch drivers of the original AM-5) in a dual-cavity acoustic structure similar to the original design. But rather than each cavity’s having its own port to the room, both cavities are coupled to a third one, which in turn connects to the listening area through a molded plastic duct whose diameter flares smoothly from about 2-1\/2 inches to about 4 inches at its exit from the box. The bass module’s frequency range is roughly 50 to 250 Hz.\u003c\/p\u003e\n\u003cp\u003eThe new Acoustimass bass module is approximately the same size as that of the original AM-5: 19-1\/4 inches long, 14 inches high, and 7-1\/2 inches wide. It can be placed almost anywhere, on any of its surfaces, as long as the vent is unobstructed (the opening should be at least 2 inches from other surfaces).\u003c\/p\u003e\n\u003caside class=\"ad--google_adsense\" itemscope=\"\" itemtype=\"https:\/\/schema.org\/WPAdBlock\"\u003e\u003cins class=\"adsbygoogle\" data-ad-client=\"ca-pub-5026228084405652\" data-ad-slot=\"1251013726\" data-adsbygoogle-status=\"done\" data-ad-status=\"unfilled\"\u003e\n\u003cdiv id=\"aswift_3_host\"\u003eOne end of the bass module contains a group of spring-loaded connectors for the input signals from the amplifier and the outputs to the satellites (the crossover system is built into the module). The system’s automatic protection against overload damage reduces the signal level until the overload has been removed.\u003c\/div\u003e\n\u003c\/ins\u003e\u003c\/aside\u003e\n\u003cp\u003eThe Acoustimass 5 Series II is rated for operation with amplifiers able to drive loads of 4 to 8 ohms (the system is nominally 6 ohms) and with power ratings between 10 and 200 watts per channel. The Acoustimass bass module is available in a scratch-resistant black or white' satin finish, and the satellites are finished in a black or white polymer. Cables (about 18 feet long) are supplied for connecting the bass module to the satellites. The complete system, in its shipping carton, weighs 30 pounds.\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003ePrice:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e$799.\u003c\/p\u003e\n\u003c\/aside\u003e\n\u003c\/div\u003e","brand":"Bose","offers":[{"title":"Default Title","offer_id":48028955017461,"sku":null,"price":150.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0673\/9204\/5301\/files\/DSC_0422_6480132e-15b3-4432-90f3-74521c5a0d05.jpg?v=1776274629","url":"https:\/\/www.theturntablestore.com\/products\/bose-acoustimass-5-series-ii-box-manual-wires-wall-hooks","provider":"The Turntable Store","version":"1.0","type":"link"}