Krell KSA-i400
The KSA-i400 is a state-of-the-art 400 watt/channel stereo amplifier. It incorporates Krell’s most advanced circuit topologies and Krell’s proprietary technologies iBias, XD, and Sym-Max. This gives the KSA-i400 an organic, spacious, and detailed presentation along with the rock-solid bottom end and effortlessness that Krell is known for.
PRODUCT DETAILS
Technical Specifications
Analog Inputs-
1 pr. balanced via XLR connectors
1 pr. single-ended via RCA connectors
Outputs- 2 pr. speaker outputs via gold-plated binding posts
Control inputs-
1 Ethernet via RJ45
1 12 VDC trigger input via 2-conductor 3.5 mm connector
Input impedance-
Balanced: 34 kΩ
Single-ended: 17 kΩ
Frequency response-
20 Hz to 20 kHz +0.1, -0.07 dB
-3dB bandwidth 200kHz (measured at 50W into 8Ω)
Signal-to-noise ratio-
>102 dBr, wideband, unweighted, referred to full power output
>117 dBr, “A”-weighted
Gain- 26.4 dB
Input Sensitivity-
2.8 V RMS Balanced
2.8 V RMS Single-ended
Total harmonic distortion-
<0.015%, 1 kHz, 400W, 8Ω load
<0.12%, 20 kHz, 400W, 8Ω load
Output power-
400W RMS per channel at 8Ω
800W RMS per channel at 4Ω
Output voltage-
164 V peak to peak
58 V RMS
Output current- 62 A peak
Slew rate- 70 V/µs
Output impedance- <0.01 Ω, 20 Hz to 20 kHz
Damping factor- >800, 20 Hz to 20 kHz, referred to 8 Ω
Physical Specifications
Power consumption-
Standby: 1 W
Idle: 260 W
Maximum: 4750 W
Heat output-
Idle: 890 BTU/hr
Maximum:10,773 BTU/hr (4Ω load, both channels at full power)
Dimensions-
17.25 in W x 9.4 in H x 24 in D
438 mm W x 239 mm H x 610 mm D
Weight-
Unit only: 160 lb. [73 kg]
As shipped:180 lb. [82 kg]
