Krell Industries Releases S-300i Integrated Amplifier

An iPod/iPhone interface and other cutting-edge features highlight this affordable and elegant new component. [The following is a release from Krell Industries]

November 17, 2008

Krell Industries today announced a new integrated amplifier that is as remarkable for its advanced features as it is for its affordable price. The S-300i integrated amplifier combines a fully balanced, Class A preamplifier circuit with a stereo amplifier rated at 150 watts per channel into 8 ohms and 300 watts per channel into 4 ohms. Its circuit design borrows the Current Mode technology used in Krell’s top-of-the-line Evolution amps and preamps. This technology delivers unequaled signal bandwidth, ensuring clear, powerful response from the deepest notes of the bass drum to the highest notes of the piccolo. A massive 750 VA toroidal transformer and 38,000 microfarads of storage capacitance make the S-300i’s amplifier section one of the most robust ever incorporated into an integrated amplifier. The S-300i also delivers state-of-the-art conveniences audiophiles might not expect. First among these is its included iPod/iPhone interface. Like Krell’s award-winning KID iPod/iPhone dock, the S-300i’s iPod/iPhone interface taps audio from the fully differential output included in iPods and iPhones—a capability no other manufacturer has used. A cable for iPod/iPhone connection is included. An included solid aluminum remote controls the S-300i, the playback functions of a connected iPod or iPhone, and Krell CD, SACD, and DVD players. The machined aluminum volume control on the front also accesses the S-300i’s control menus, which can be viewed on the unit’s front-panel display. The menu system controls such functions as balance, input trim, input naming, and muting level—most of which are not offered on integrated amps controlled by traditional switches and knobs. A theater pass-through mode allows the S-300i to operate seamlessly in conjunction with a surround-sound system. In this mode, listeners can enjoy the S-300i’s high-quality sound and formidable output while allowing a surround-sound receiver to handle the center and surround channels. The inclusion of this mode means that two-channel audio enthusiasts sacrifice no sound quality or convenience if they decide to add surround sound. The S-300i’s back panel offers three unbalanced RCA inputs, a balanced XLR input, a jack for the iPod/iPhone cable, and high-quality WBT speaker cable terminals. The chassis’s compact 4.2-inch height makes it easy to fit into entertainment centers or equipment racks. And its handsome brushed-aluminum faceplate suits any decor. Installers and systems integrators will find all the features they need to make the S-300i work with external control systems such as AMX and Crestron touchscreens. The back panel includes 3.5mm jacks for IR input and 12-volt trigger input and output, as well as an RS-232 connector. Ears for rack-mounting are included. Suggested U.S. retail price for the S-300i is $2,500. “With its iPod interface and menu-driven control, the S-300i delivers a new level of convenience for devotees of two-channel audio,” said Dan D’Agostino, cofounder, CEO, and Chief Designer of Krell Industries. “It’s an affordable way to bring Krell’s incomparable sound quality into any home.” For more information and specifications on the S-300i and other Krell Industries products, visit

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