Krell 300i Integrated Amplifiers

Krell Integrated Amplifier K-300i incorporates a newly developed amplifier circuit design with Krell iBias™ technology, delivering 150 Watts/Channel into 8Ω and 300 Watts/Channel into 4Ω. iBias provides the sonic benefits of Class A operation without the excessive heat and power consumption of traditional Class A design.

With the digital option installed the K-300i becomes a world-class DAC with the connectivity and features to support the latest digital music formats. An ESS Sabre Pro DAC configured for high current output performs the digital to analog signal conversion for uncompromised reproduction of digital music.

Krell 300i Integrated

Krell 300i

$11,250.00 300i-DIG / $9,750 300i

Integrated Stereo Amplifier
150 Watt Amplifier Featuring Krell iBias Technology

Krell 300i Stereo Integrated Amplifier Technical Specifications

Analog Inputs
2 pr. balanced via XLR connectors
3 pr. single-ended via RCA connectors

Digital Inputs
1 EIAJ Toslink Optical
1 S/PDIF Coax
2 HDMI (HDMI 2.0a, HDCP 2.2) + 1 HDMI Output
1 USB-A (USB 2.0 host)
1 USB-B (USB 2.0 audio device)
1 Bluetooth with aptX

1 pr. preamp outputs via RCA connectors
1 pr. speaker outputs via gold-plated binding posts

Control inputs
1 RS-232 input via 9-pin D-subminiature connector
1 remote IR detector input via 3-conductor 3.5 mm connector
1 12 VDC trigger input via 2-conductor 3.5 mm connector

Control output
1 12 VDC trigger output (60 mA maximum current) via 2-conductor 3.5 mm connector

Input impedance
Balanced: 16 kΩ
Single-ended: 8 kΩ

Frequency response
20 Hz to 20 kHz +0, -0.22 dB
<10Hz to 100kHz +0, -0.57 dB

Signal-to-noise ratio
>104 dB, wideband, unweighted, at 2V RMS in balanced, referred to full power output
>117 dB, “A”-weighted

25 dB, referenced to 2V RMS in balanced and full power output

Input Overload
10.4 V RMS Balanced
6.8 V RMS Single-ended

Output power
150 W RMS per channel at 8 Ω
300 W RMS per channel at 4 ΩOutput voltage
98 V peak to peak
34.6 V RMS

Slew rate
46 V/µs

Output impedance
<0.023 Ω, 20 Hz
<0.035 Ω, 20 Hz to 20 kHz

Damping factor
>347, 20 Hz, referred to 8 Ω
>228, 20 Hz to 20 kHz, referred to 8 Ω

Power consumption
Standby: 11 W
Idle: 46 W
Maximum: 900 W

Heat output
Standby: 37 BTU/hr
Idle: 156 BTU/hr
Maximum: 3060 BTU/hr

17.25 in W x 4.12 in H x 18.00 in D
438 mm W x 105 mm H x 457 mm D

Unit only: 52 lb [23.6 kg] As shipped: 60 lb [27.3 kg]

Digital Module Specs
Coaxial and HDMI inputs support PCM up to 24-bit/192kHz. Optical input up to 24-bit/96kHz

HDMI inputs support DSD and 4K video content. HDMI output supports Audio Return Channel (ARC)

USB and Network streaming support MP3, AAC, WMA, WAV(PCM), FLAC, ALAC up to 192kHz

Bluetooth streaming supports A2DP, AVRCP, HFP, HSP