Assessments - 4, GPA: 4
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Fotos e especificações Bowers & Wilkins CM1 |
Facilidade de uso
Hitherto, such limited living space has imposed frustrating restrictions on the* enjoyment of recorded music: because until now it has been virtually impossible to recreate full, accurate sound without installing loudspeakers of unacceptable size This Challenging question of how to got the musical quart into the domestic pint pot has occupied B&W for some years. In fact, the basic design philosophy for Concept 90 was conceived back in 198-1. when designer Kenneth Grange presented his ideas for a small, elegant onclosure — totally at Home in such limited roomscapes as the small sitting room, study, dining art'.? or studio apartment. Thanks to the ingenuity of the B&W design team, that concept is now an exciting reality in which you will share through your purchase of a B&W Concept 90 system B&W Matrix Construction The 'M' in the model name CM1 indicates that tho loudspeakers are of B&W Matrix construction, incorporating tho recent invention that eliminates unwonted cabinet vibrations and brings you all the advantages of low onclosure radiation. Although small dimensions bring real advantages in the middle and high frequencies, problems arise from the conflicting needs of output and low frequency extension. Within the restraints imposed by the very compact external dimensions that are the raison d'etre of Concept 90. added wall thickness would have reduced CM1 ^ Internal volume unacceptably (conventional construction materials called for wall thickness of 15 to I8rnrn) Not for the first time, B&W engineers sought a now materia) and finally chose a fibre-reinforced polymeric board. Thir. allows a considerable reduction in wall thickness — therefore a valuable gain in internal volume It took this major advance, combined with all B&W's computer optimisation expertise, to producer in CM1 a system whoso bass output so belies its diminutivo sl/.o. You will find that thin is a system of true monitor quality, capable of surprisingly high sound levels Also, thanks to its wide and balanced frequency responso, your Concept 90CM1 will faithfully reproduce even the most delicate nuances of solo instrumentalists Overall, it responds splendidly to the wide dynamic range of today’s compact disc players. Just as It was designed to do. CM2 — extended bass, higher power capacity In Concept 90. we have not overlooked the requirements of those audiophiles whoso Interests demand further extension of bass response and greater power handling capacity. For them we have produced B&W Concept 90 In Its CM2 form, which orovides an extra octave-and-a-hnlf of low frequency extension beyond that of the CM1. Consequently, model CM2 faithfully recreates tho sound of double oass. bass drum and the organist's deepest notes in all their full weight arid splendour. This generous extension in Pass response and increase in pawer-nandliny woro achieved within the Concept 90 design philosophy of acoustic performance uncompromlsed by onclosure elegance. It was done by designing the CM2 bass unit-, into tho back of the enclosure. Because of the low crossover frequency used, this configuration in no way impairs performance and it results in a desirably omnidirectional pattern of sound radiation Getting the best from your system Tho purpose of this manual is to enhance your enjoyment of tho Concept 90 loudspeakers you have chosen. A system of this high class is still dependent on the signals fed into It and is also influenced by the immediate environment in which it Operates. Useful advice on these aspects will be found In the following pages An international network of carefully chosen Distributors handles B&W products in more than forty count ries worldwido. If at any time you have a problem that your Dealer cannot resolve, the B&W Distributor for your area will bo more than willing to help. Thank you for the confjdonce you have shown in purchasing your Concept 90 loudspeakers. Please be assured of our continuing interest in your long-term listening pleasure. 2 S&W Concept 90 — I design background The enclosure: CM1 Following the development and worldwide success of tho Motrix series, and with Concept 90‘s basic requirement of compactness always in mind, the B&W design team seized the opportunity to take Matrix construction one important step fur ther by moulding the CM1 enclosure and matrix in one piece, using g|«stt-fibre reinforced polyester (a material that is both acoustically desirable and exceptionally rigid). This new construction permits onclosure wail tnickness to be reduced from the usual 15mm to only 5mm. thus allowing a gain of 46^ inturnal volume, with a consequent extension of the low frequencies by about one-third of an octave To this odvantage one must add the acknowledged benefits of Matrix construction: (a) Significant reduction of those unwanted colourations so frequently associated with box-typo loudspeakers. (Any radiation from an enclosure adds its own character to the desirable neutral, uncoloured sound prod...