The Fully Balanced Integrated Amplifier (FBI) is a large-format integrated amplifier that offers all the power and control afforded by big Krell amplifiers in a convenient, integrated package that is simple to operate.

A new Current Mode preamplifier topology features an Evolution CAST input for pristine signal integrity. A balanced, 300 watt/channel amplifier delivers the dynamic contrasts for which Krell is legend.

The hand-machined aluminum chassis and choice of two exquisite finishes complete a package that obliterates any notion of compromise.

Available in silver or black.

FEATURES
The balanced, Krell Current Mode preamplifier design features Krell Evolution CAST, balanced, and single-ended inputs.

The preamplifier bandwidth extends to 300 K promoting low distortion and proper phase in the audible band.

A Krell engineered volume control is realized with digitally controlled, analog resistor ladders for pristine phase and frequency response at any volume setting.

The amplifier features 300 W Krell Current Mode Topologies and balanced output stages.

A 3000 VA custom torroidal transformer offers enormous current reserves.

A remote control accesses all functions, and a 12 VDC trigger connection allows the easy interface with other components.

The Theater Throughput feature allows seamless integration into a home theater system.

Frequency response 20 Hz-20 kHz +0.0 -0.05 dB Signal-to-noise ratio >108 dB, "A"-weighted Gain 36.4 dB Total harmonic distortion 1kHz <0.04% 20 kHz <0.3% Input impedance 210 kOhms Input sensitivity 0.741 V rms Output power 300 W RMS at 8 Ohms 600 W RMS at 4 Ohms 1200 W RMS at 2 Ohms Output voltage 138 V peak-to-peak Output Impedance 210 kOhms

Power consumption Standby: 70 W Idle: 185 W Maximum: 1800 W Inputs (All with Theater Throughput) 1 pair CAST via 4-pin bayonet connectors. 1 pair balanced via XLR connectors 3 pair single-ended via RCA connectors Tape Inputs and Outputs 1 pair single-ended via RCA connectors Outputs 4 loudspeaker via 5-standard binding posts 1 pair single-ended preamp via RCA connectors Remote Control 1 handheld wireless IR remote 1 12 VDC Out/In (12 V trigger) 1 remove IR sensor input via 1/8" mini stereo connector 1 RC-5 input via a DC power connector Dimensions 17.3 in. W x 10.3 in. H x 20.5 in. D 483 mm W x 260 mm H x 521 mm D Weight Shipped: 124lb., 56.3 kg Unit Only: 104 lb., 47.2 kg

 

Home Theater Review

"The FBI is built like a proverbial tank and exhibits Krell's pleasing new aesthetics, derived from their Evolution line."
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Stereophile

"With Keith Jarrett's Carnegie Hall Concert the FBI captured not only the creamy percussiveness of the Steinway grand, but also the slightest hesitations of Jarrett's rubato and the lightest shadings of his pedal work."
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• Product Manual