Krell Industries MASTER REFERENCE SUBWOOFER manual Totally Balanced Operation

Totally Balanced Operation

Balanced circuits ensure optimum signal to noise ratios, signal preservation, and accuracy of delivery under every condition; however, the primary benefit of balanced circuitry is loudspeaker control. The Master Reference Subwoofer finesses the low frequency range with totally balanced operation from input to output, employing CAST or XLR inputs. In the output stage of each Master Reference Subwoofer, independent circuit paths amplify the positive and negative output signals to exercise absolute control over loudspeaker systems and force the loudspeakers to generate music and low frequency effects that are precisely representative of the original signal.

The Input Stage. The input stage of each subwoofer accepts signals in two ways: The CAST input accepts signals in the current domain, or the XLR input accepts signals in the voltage domain.

We recommend using CAST inputs, for the best subwoofer performance. When the CAST connection is used, the signal received by each amplifier remains in the current domain and is transmitted unchanged through the Krell Current Mode input and output stages, with absolutely no degradation.

Krell CAST and Krell Current Mode are more fully explained on pages 4-5.

When the XLR connection is used, a signal in the voltage domain is delivered to the input stage. Each amplifier converts this signal to the current domain. The signal in the current domain is then sent through the output stage of the subwoofer without alteration.

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