Krell Industries MASTER REFERENCE SUBWOOFER Operation, Technology, Krell Active Motion Control

(SECTION ONE: About Krell continued)

(Definition of Terms continued)

Krell CAST Current Audio Signal Transmission (CAST) is a proprietary Krell circuit technology for connecting analog components, in which the audio waveform is transmitted between components in the current rather than the voltage domain. The speed and band- width that CAST provides yield astounding levels of accuracy and realism. Krell components connected via CAST perform as if they are all part of a single circuit.

Low Frequency Effect LFE enriches the low end of a musical score and enhances (LFE) Input nearly subsonic content, such as explosions or other special

effects. It is part of the Dolby 5.1 specification, with a bandwidth of 5 to 120 Hz.

Single-endedA two-wire input or output circuit in which the ground connection is made last and broken first. Use care when using single-ended connections. Turn the system off prior to making or breaking single-ended connections. Single-ended connections are not recommended for configurations requiring long cable runs.

Operation

Off When the power switch on the rear panel is placed in the down position and the red stand-by LED turns off, the component is off.

Operational Mode When the power button on the front panel is pressed and the blue power LED illuminates, the component is in the opera- tional mode and ready to play music.

Stand-by Mode A low power consumption status that keeps the audio and reg- ulator circuits at idle. Krell recommends leaving the component in the stand-by mode when it is not playing music.

Krell Active Motion Control

Technology

A proprietary Krell circuit designed to continuously compare the position of a loudspeaker to the analog waveform at the amplifier input. Active Motion Control provides an extra measure of loudspeaker control without the transient distortion associated with simple servo designs.

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