Harman Kardon AVR 525 Bedienungsanleitung

Technology in A/V receivers has increased in advancement and sophistication

with the introduction of formats such as Surround EX,™DTS®6.1 Discrete,

SACD and DVD-Audio. Speaker manufacturers have increased their offerings

in response to these new formats, but most competitive A/V receivers have not

updated their bass-management systems to accommodate the wide range

of choices. For example, many receiver models still apply crossover points globally,

rather than in individual groupings.

Triple Crossover System

Harman Kardon’s newest receivers – the DPR 1001,AVR 7200,AVR 525 and AVR 325 – offer an advanced and

versatile Bass Manager, which allows the crossover to be set to one of six specific frequencies for each of three

different speaker groups (see Figure 1).Within the same surround mode input setup, the six choices are 40Hz,

60Hz, 80Hz,100Hz, 120Hz and 200Hz. Therefore, one could set the left/right fronts to 80Hz, the center to100Hz

and the surrounds (side and back) to 200Hz.Also, when the high-pass-frequency point is selected, it automatically

sets the proper matching, compatible low-pass-frequency point (to the LFE out) to ensure that none of the

low-frequency information is lost and that all sound is outputted properly to the assigned channels. (Note that the

software is run at 48-bit resolution using 2nd-order high-pass filters and 4th-order low-pass filters [Linkwitz-Reily].)

Triple Crossover and Multichannel

Digital Bass Manager

Figure 1. Harman Kardon 7.1-Channel Home Theater System Using Triple Crossover

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Additional Options

■Bass Remixing

All 7.1-channel Harman Kardon receivers have the capability of providing additional bass by remixing a portion

of the left/right front speakers’ signals to the subwoofer.

■Direct Mode

If the user desires to have the optimum in wide-band frequency response while listening to analog program

material, the entire Bass Manager can be bypassed by switching to the Direct mode.

■Global and Independent

The user may choose to have the Triple Crossover settings applied to all inputs (Global) or a unique

Triple Crossover setting for each input (Independent).

Multichannel Digital Bass Manager

Harman Kardon’s DPR 1001,AVR 7200 and AVR 525 include, in addition to theTriple Crossover System, a Multichannel Digital

Bass Manager (see Figure 2). Despite the increasing popularity of SACD and DVD-Audio players, which output six to eight

separate full-range analog signals, there are virtually no A/V receivers other than Harman Kardon’s DPR 1001,AVR 7200 and

AVR 525 that provide a bass manager when in the 6- or 8-Channel-Direct mode.This means that systems using bookshelf or

satellite speakers will receive a full-range signal from DVD-Audio or SACD sources that includes low frequencies. This could be

damaging to the speakers when they’re played at higher levels. Some competitive receivers claim to include a multichannel bass

manager but they often don’t have any bass redirection, only a high-pass filter.This means that the low-frequency portion of the

original source material is lost, resulting in less-than-optimal playback performance.

The DPR 1001,AVR 7200 and AVR 525 have a unique design that utilizes eight channels of analog-to-digital converters which,

in turn, digitize the incoming source signal from the SACD or DVD-Audio optical player. By digitizing this signal, the Bass Manager

within the DSP processor can apply the assigned filters and proper bass redirection, including all of the options available from the

Triple Crossover System.This allows listeners to have all of the same Triple Crossover settings, including bass redirection, when

playing back SACD or DVD-Audio players through the 6- or 8-Channel-Direct inputs as they have when playing any conventional

analog or digital source.

Conclusion

Harman Kardon is currently the only brand that includes the Triple Crossover System and the Multichannel Digital Bass Manager to

maximize the benefits of multichannel sound and high-resolution audio formats.

For more information visit www.harmankardon.com.

Figure 2. Multichannel Digital Bass Manager

Harman Kardon and Power for the Digital Revolution are registered trademarks of Harman International Industries, Incorporated.Surround EX is a jointly developed technology of

THX and Dolby Laboratories, Inc., and is a trademark of Dolby.Used under authorization.DTS is a registered trademark of DigitalTheater Systems,Inc.Part No.TRICRTS

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