Krell Industries MASTER REFERENCE SUBWOOFER A Letter from Dan D’Agostino, Dear Audio Enthusiast

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

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