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QUAD ESL 2905 manual

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Table of contents for the manual

  • Page 1

    ESL 2805 & ESL 2905 the closest appr oach to the original sound. Reference series[...]

  • Page 2

    2[...]

  • Page 3

    Q u a d E S L T h e C o n t e m p or a ry E l e ct r o s ta t i c L o u d s pe a k e r D e s i g n T he new ESL-2805 and ESL-2905 Electrostatics are Quad’ s latest reference loudspeakers and like their predecessors should be regarded amongst the finest loudspeakers in the world toda y . In areas such as transparenc y , and lack of colouration, th[...]

  • Page 4

    4 Quad products stand alone in the hi-fi world - renowned for their longevity; quality of build; and consistently high standard of performance. Our award- winning service department regularly maintains products over 50 years in age. Products whic h still bring their owners immeasurable pleasure. Quad products are designed with the single aim of rep[...]

  • Page 5

    c l o s e r a p p r o a c h . . . A mo ving-coil speaker consists of a wire coil suspended inside a magnet. When an audio signal passes through the coil a varying magnetic field is set up w hich interacts with the magnet and causes the coil to mov e back and forth. A cone (or in the case of high frequency speakers, a dome) is attached to the coil, [...]

  • Page 6

    6 Although deeply flawed, their cost and convenience adv antages are such that the overw helming majority of loudspeakers in toda y’ s marketplace are moving-coil, and at Quad we manufacture some of the finest examples of this genre. But, as a counsel of perfection, we ha ve to look elsew here. Electrostatic speakers have long been renowned for t[...]

  • Page 7

    "I know of no other speaker I'd rather own, regardless of price. I think it's the finest hi-fi purc hase you could ever make in terms of performance and v alue-yes, it's that good. Speaker of the year? Nah. Speaker of the centuries. T his one and the last. ’' – Stereophile , Sam T ellig[...]

  • Page 8

    8 A perfect point source produces a spherical w av e pattern. T he air particle movement at a plane some distance from the source. An identical movement in the ESL membrane produces and identical wa ve front T he membrane carries a constant charge. T he c harge on the electrodes fluctuates according to the music signal. T he music signal is fed fir[...]

  • Page 9

    C on s t r uc t i o n p r o c e ss o f a n E S L 2 9 0 5[...]

  • Page 10

    Whilst for most ESL customers the important factor is performance with two-c hannel stereo sour ces, be those analogue or digital, for a growing number of customers 'home cinema' or even multi-channel music is now also becoming an important consideration. T o create a system whic h is able to excel at both is a difficult task. T ypically [...]

  • Page 11

    "By the highest standards, the 2905s get everything right to a degree that had me shaking my head in a we. T his is easily one of the most revealing and accurate loudspeakers I ha ve ever heard." – Hi-F i W orld , Noel K eywood[...]

  • Page 12

    12[...]

  • Page 13

    Ask many of the most respected music industry professionals in the world what their speaker of choice is - the answer is surprisingly common. The Quad ESL opens a window on a recording unlike any other speaker . More hi-fi critics regard the Quad ESL as an absolute reference for their listening than any other loudspeaker . They are regularly praise[...]

  • Page 14

    T he ESL-2905 is the larger of the two models - it employs a grand total of six electrostatic panels; the inner two utilising the concentric rings of anodes used to create the point source image. T he ESL-2905 has a fifty-percent greater diaphragm area than its smaller brother . T his increase allows for a markedly improved bass response, and great[...]

  • Page 15

    Quad ESL 2905 Horizontal Directivity[...]

  • Page 16

    16 T he ESL-2805 is the smaller of the two models and uses four panels rather than six. The inner two panels of the ESL-2805 again utilise the concentric anode rings for point source imaging, and the outer rings are again linear in their response. Whilst the absolute bass extension and dynamic ability are less than its larger brother (it lacks the [...]

  • Page 17

    Quad ESL 2805 Horizontal Directivity[...]

  • Page 18

    S p e c i f i c a t i o n s 18 Model ESL 280 5 ESL 2905 Construction F ormat T ype Membrane P anel Elements T ime Dela y Chassis Structure Acoustic Performance Maximum Output Sensitivity Impedance Impedance Variation Maximum Input F requency Response Distortion (100dB at 1m) Electrical AC Input P ower Fuse General P ower Consumption Dimensions (HxW[...]

  • Page 19

    Loudspeakers • L-ITE2 5.1 System • L-ITE2 Mini Loudspeaker - P air • L-ITE2 Centre Loudspeaker - Single • 9L2 Loudspeaker - P air • 11L2 Loudspeaker - P air • 12L2 Loudspeaker - P air • 21L2 Loudspeaker - P air • 22L2 Loudspeaker - P air • L2 Centre Loudspeaker - Single • L2 Subwoofer - Single • L-ITE2 Subwoofer - Single Elect[...]

  • Page 20

    Qu.ESL.8.2006 Quad Electroacoustics Ltd, IA G House, Sovereign Court, Ermine Business P ark, Huntingdon, Cambs, PE29 6XU T el :- 01480 447700, F ax :- 01480 431767 www .quad-hifi.co.uk T he information in this brochure is subject to change without notice.All rights reserved © 2004 Quad Quad is a member of the International Audio Group[...]