Krell Industries MASTER REFERENCE SUBWOOFER - Manual (Page 15)

continued ᮣ
9
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.