Krell Industries MASTER REFERENCE SUBWOOFER - Manual (Page 7)

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A Letter from Dan D’Agostino
Dear Audio Enthusiast,
Thank you for your purchase of the Master Reference Subwoofer.
The Master Reference Subwoofer is the result of my ongoing quest for designing
reference caliber audio components.
I have been designing audio amplifiers for high performance audio systems for more
than thirty years. The Master Reference Subwoofer represents the culmination of
many years of engineering research and discerning listening. All of my insights and
discoveries about the synergy between high performance amplifiers and low frequency
music reproduction have come together in the design of this component.
I developed this subwoofer to be compatible not only with Krell’s proprietary CAST
components but also with the wide range of loudspeakers that are preferred by
music enthusiasts. Krell’s one-of-a-kind programmable electronic crossover makes
this possible. The crossover includes three filters—Bessel, Butterworth, and Linkwitz-
Riley—that adjust and match the subwoofer to any system and loudspeaker con-
figuration. No other subwoofer offers this level of refinement. The Master Reference
Subwoofer eliminates the loss of sound quality and power that occurs as music
moves between the high and low frequency ranges. This Krell subwoofer produces
low frequency sound the way it was meant to be heard—resonant, precise, and
utterly reliable—without compromising the fidelity of the performance.
To me, the Master Reference Subwoofer is the logical next step in my personal
passion for designing and developing high performance audio equipment. Innovative
software controls and proprietary circuitry in a custom-machined chassis add
dimension to your stereo and home theater systems, placing their low-end capability
at the very vanguard of technology.
Thank you again for your decision to purchase the Master Reference Subwoofer.
Designing and building the finest audio components continues to be my life’s work. I
am pleased to share my most recent triumph in audio engineering and design with you.
Sincerely,
Daniel D’Agostino
Chief Executive Officer