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The 

4344MkII’s

outer connection panel and internal dividing 

network are designed so that separate sets of speaker cable can be attached

to the low-frequency transducer and midrange/high-frequency transducer

portions of the dividing network. This is called bi-wiring. Bi-wiring can

provide several sonic advantages and considerably more flexibility in

power amplifier selection. The advantages of bi-wiring are as follows:

The majority of current flowing between an amplifier and speaker is devoted
to bass reproduction. In fact, 60% or more of an amplifier’s output is des-
tined for the woofers. When current flows through a wire, it produces an
electro-magnetic field (EMF) that expands and collapses at a rate equal to
that of the music’s complex frequency components. If a single speaker 
wire must conduct the full musical frequency, the preponderance of low-
frequency information can interact with or modulate high frequencies. 
The resulting intermodulation can create audible changes to the high 
frequencies even before they reach the loudspeakers.

By using separate cables for high and low frequencies, unwanted high- 
frequency modulation is avoided. Low-frequency information flows
through one cable while high frequencies flow through another.

Having the opportunity to use separate low- and high-frequency cables

allows you to use cables best suited to each frequency range. Optimally,

you should use high-quality, audiophile-grade speaker cables for both low-

and high-frequency conductors. However, let your ears guide you to the

cables that best match the

4344MkII

loudspeakers to your amplifier.

Bi-wiring also allows you the option of using separate stereo power 

amplifiers for left and right speakers, or even four mono amplifiers.

Whether you use two or four amplifiers, it is important to use the same

brand and model to power like connections on the

4344MkII.

Frequency-optimized Cables

No.

10

Reduction of Intermodulation 

Bi-Wiring

Amplifier Flexibility

4344 MK 11 Manual  7/21/98 3:18 PM  Page 9

Содержание 4344 MKII

Страница 1: ...P R O F E S S I O N A L S E R I E S L O U D S P E A K E R S Y S T E M 4 3 4 4 M k I I A NEW STANDARD FOR A NEW CENTURY 4344 MK 11 Manual 7 21 98 3 18 PM Page 16...

Страница 2: ...ellence in engineering is successfully carried through to each individual product regardless of its application or price range As new audio concepts and technologies are pioneered the partnership of J...

Страница 3: ...91329 1 800 336 4JBL 4525 USA only www jbl com 1996 JBL Incorporated JBL is a registered trademark of JBL Incorporated Printed in USA 2 97 Part No 4344MkIIOM97 Table of Contents Declaration of Confor...

Страница 4: ...among 15 drivers The voice coil is 4 102mm in diameter and wound on edge from flat aluminum ribbon wire on a thermoset composite form The cone is a rigid paper composite treated with Aquaplas for stre...

Страница 5: ...high frequency transducer First titanium is extremely light yet rigid The goal is to maintain a piston like action as high in frequency as possible Should the material flex easily the diaphragm will...

Страница 6: ...ntially increases sonic detail resolution and dynamics The low frequency section of the dividing network is mounted on a dedicated circuit board that separates both electrical and magnetic properties...

Страница 7: ...l Install the battery by aligning the battery terminals with the mating terminals in the network housing Align male to female female to male terminals then snap the connectors together assuring a tigh...

Страница 8: ...e best stereo image will be perceived turn the speaker to face the primary listening position Figure 2 It is normally recommended that the 4344MkII loudspeakers be positioned so that the ultrahigh fre...

Страница 9: ...he systems in this manner ensures that they will operate in phase that is they will work together rather than in opposition Connecting the speaker system out of phase will not cause damage but will ad...

Страница 10: ...modulate high frequencies The resulting intermodulation can create audible changes to the high frequencies even before they reach the loudspeakers By using separate cables for high and low frequencie...

Страница 11: ...ifiers 3 If you have hooked up your 4344MkII loudspeakers in any of the bi wire configurations indicated it is not advisable to use additional speakers separately or simultaneously 4 As with conventio...

Страница 12: ...stereo amplifiers are used one may be located near each loudspeaker to drive low and mid high frequency sections through short wire runs The external strapping bars that normally connect the 4344MkII...

Страница 13: ...made periodically The frequency of maintenance depends on the metals involved in the connections atmospheric conditions and other factors but once per year is the minimum The battery should be replace...

Страница 14: ...dance 6 ohms Crossover Frequencies 340Hz 1300Hz 8000Hz Low Frequency Transducer ME150H Mid Frequency Transducer 2123H High Frequency Transducer 275ND Ultrahigh Frequency Transducer 2405H Tuning Freque...

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