Audio Engineering

702 Chapter 23 Figure 23.21 : A 25-mm OEM soft-dome tweeter. Figure 23.22 : A 200-mm OEM bass midrange loudspeaker drive unit. L ...

Loudspeakers 703 is 45°. Above the second resonance the impedance rises slowly. It will be seen that the design of a successful ...

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Loudspeaker Enclosures Ben Duncan 24.1 Loudspeakers ............................................................................ ...

706 Chapter 24 (0.6 m) in diameter for use at high treble down to low bass. There are at least 15,000 different types of cone ma ...

Loudspeaker Enclosures 707 diaphragm, a compression driver must never be driven with a program having frequencies below its rate ...

708 Chapter 24 (commonly from 3 to 1000 W), but they will all mostly have a DC resistance of 5 to 10 ohms and a nominal (AC, 400 ...

Loudspeaker Enclosures 709 frequencies, this shorts the speaker’s electrical input, possibly blowing up the amplifi er, or at le ...

710 Chapter 24 Also, without having the capacitative loading region of a conventional tweeter (and the load dip of any passive c ...

Loudspeaker Enclosures 711 For most domestic speakers, 96 dB is a high sensitivity but low for professional types. The sensitivi ...

712 Chapter 24 Of these, the latter two are important, practical forms that have to be lived with. They can in any event be made ...

Loudspeaker Enclosures 713 without restriction and risk of damage to every other kind of music, two, three, or more drive-units ...

714 Chapter 24 routing ” that ensures different drivers receive their intended range, and not other frequencies, is thecrossover ...

Loudspeaker Enclosures 715   Input Amplifier Output Speaker cable High pass crossover Low pass crossover Speaker enclosure LF ...

716 Chapter 24 24.1.4.7 Active Crossovers The active crossover (fi rst suggested by Norman Crowhurst in the 1950s) takes the pre ...

Loudspeaker Enclosures 717 also absent in active powered enclosures and is the rather the reverse—1 integrated active cabs are “ ...

718 Chapter 24 amplifi er into a “ speaker-driving fi lter ” has the advantage of minimizing superfl uous hardware and signal pa ...

Loudspeaker Enclosures 719 24.1.4.10 Other Networks Whether the crossover is passive and high level, passive and low level, or a ...

720 Chapter 24 24.2 The Interrelation of Components .......................................................................... 2 ...

Loudspeaker Enclosures 721 At and about the resonant frequency, the impedance variation at the loudspeaker’s terminals is due to ...