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Krell S-300i Integrated Amp Offers iPod Connectivity

S-300i combines a Class A preamplifier circuit, an amp section rated at 150 watts into an 8-ohm load and iPod connectivity.
krell_s300i
Krell Industries is offering consumers an all-in-one component that is stylish and affordable with its new S-300i Integrated Amplifier.

The S-300i (pdf) 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 is modeled after the company's Current Mode technology used in Krell’s Evolution amps and preamps.

The S-300i amplification section employs a massive 750 VA toroidal transformer and 38,000 microfarads of storage capacitance to help it handle any load a loudspeaker may present.

It also delivers an iPhone/iPod interface that is modeled after Krell’s KID iPod/iPhone dock. The iPod interface taps into the fully differential output included in iPods and iPhones.

Other features include:
  • A machined-aluminum volume control on the front that also accesses the control menus
  • The menu is displayed in the unit's front-display window and offers info on balance, input trim, input naming, and muting level
  • Theater pass-through mode, which allows the S-300i to operate in conjunction with a surround-sound system
  • Back-panel provisions like three unbalanced RCA inputs, a balanced XLR input, a jack for the iPod/iPhone cable, WBT speaker cable terminals
  • A compact 4.2-inch chassis
Installers and systems integrators can also use the S-300i in tandem with AMX and Crestron control systems. The back panel's control options include 3.5mm jacks for IR input, 12-volt trigger input and outputs and a RS-232 port.

Krell ships the integrated amp with dog ears for rack mounting, a cable for the connection of an iPod/iPhone and a solid-aluminum remote.

MSRP: $2,500

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About the Author

Robert Archer, Senior Editor, CE Pro
Bob is a dedicated audiophile who has written about consumer electronics for various publications within Massachusetts before joining the staff of CE Pro in 2000. Bob writes CE Pro's monthly Audio/Video news and Screening Room, as well as serving as the co-chair for the EHX A/V educational curriculum.

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