(SECTION FOUR: Connections and Configurations continued)

Step IV. Match the High-pass and Low-pass Filter Levels

This section explains how, once the programmable electronic crossover has been configured, to match the high-pass and low-pass filter levels using the Master Reference Subwoofer’s built-in noise generator.

Step A describes muting the low-pass filter while adjusting the high-pass flter level. Step B describes muting the high-pass filter while adjusting the low-pass filter level. You can choose to match the high-pass to the low-pass or vice versa. Either is correct. Make sure that the amplifier connected to the high-pass outputs is on and in the operational mode.

A. Adjust the High-pass Filter

1.Press the menu key (37). The front panel display (4) shows MENU.

2.Use the up adjust key (43) to select NOISEGEN.

3.Press the enter key (38). The display shows NOISEOFF.

4.Press the up adjust key to select NOISE ON.

5.Press the enter key. After a two second delay, you will hear noise generator output through both the Master Reference Subwoofer and your front speakers.

6.Use the up adjust key to select MUTE. The front panel display shows MUTE.

7.Press the enter key. The front panel display shows the current setting for mute.

8.Press the up adjust key to select LPF ONLY.

9.Press the enter key.

10.Press the menu key to exit the menu mode.

11.Press the mute key (34) on the remote control to mute the low-pass filter. You hear noise only from the high-pass filter.

12.Press the section high key (36).

13.Press the level key (42).

14.Use the adjust keys to raise or lower the high-pass filter level so that it matches that of the low-pass filter (sub).

15.Make sure you unmute the low-pass filter, after you have adjusted the high-pass filter.

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Krell Industries MASTER REFERENCE SUBWOOFER manual Step IV. Match the High-pass and Low-pass Filter Levels
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MASTER REFERENCE SUBWOOFER specifications

Krell Industries has long been synonymous with high-end audio equipment, and their Master Reference Subwoofer is a testament to this legacy of excellence. Designed to deliver an unparalleled listening experience, the Master Reference Subwoofer is engineered to provide deep, powerful bass without compromising clarity or detail.

One of the standout features of the Master Reference Subwoofer is its robust construction. The cabinet is made from high-density materials that minimize resonances and vibrations, ensuring that the purity of the audio signal is maintained. This attention to detail is crucial, as unwanted vibrations can color the sound and detract from the listening experience. The design also includes internal bracing that further enhances stiffness, resulting in a more controlled bass response.

At the heart of the Master Reference Subwoofer is a custom-engineered driver, designed to handle the demands of high-powered audio. With a large diaphragm and a powerful motor system, this driver can reproduce lower frequencies with remarkable accuracy. The subwoofer utilizes a sophisticated suspension system that allows for greater travel while maintaining linearity, resulting in an impressive dynamic range. This means that whether you're listening to the subtle nuances of a classical piece or the thunderous explosions of an action movie, the Master Reference Subwoofer can handle it all with finesse.

Krell's proprietary technologies further enhance the performance of the Master Reference Subwoofer. The subwoofer features advanced digital signal processing (DSP) that allows for precise tuning and customization of the audio output. This ensures that the subwoofer can adapt to different room acoustics and individual preferences, resulting in optimal sound quality in any environment. Moreover, the Room EQ feature automatically analyzes the listening space and adjusts the output accordingly, providing an incredible level of personalization.

Connectivity options on the Master Reference Subwoofer are diverse and versatile, including XLR and RCA inputs, making it compatible with a wide range of audio systems. The intuitive interface allows users to easily navigate through various settings, making setup and adjustment a breeze.

In summary, the Krell Industries Master Reference Subwoofer showcases the company's commitment to audio excellence through its unmatched construction, innovative driver technology, and advanced digital processing capabilities. For audiophiles seeking a subwoofer that delivers not just deep bass, but also accuracy and control, the Master Reference Subwoofer stands out as a premier choice, elevating any listening experience to new heights.
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