Power amplifiers stereo — Krell KSA I400
Description, images, technical data and specifications
Krell KSA I400
Image source — © Krell
The KRELL KSA-i400 is capable of developing 400 watts when operating on a load with a nominal resistance of 8 ohms. For a 4 ohm load, the maximum power is doubled, and for a 2 ohm load, the amplifier is ready to reach 1.6 kW. When the load resistance drops to 1 ohm, the KRELL KSA-i400 is capable of delivering a peak current of up to 62 amperes. The amplifier implements the most advanced patented technologies of Krell iBias, XD and Sum-Max.
Specifications
Model name
KSA I400
Input sensitivity (mV)
N/A
Input impedance (balanced) (Ω)
100 000
Input impedance (single-ended) (Ω)
50 000
Output impedance (balanced) (Ω)
< 0.05
Output impedance (single-ended) (Ω)
< 0.05
Max current (A)
N/A
Output power (8Ω) (W)
400
Output power (4Ω) (W)
800
Gain (dBu)
26.5
Frequency response low +/- 3dB (Hz)
10
Frequency response high +/- 3dB (Hz)
100 000
Signal to Noise Ratio (dB)
>105
Total Harmonic Distortion + Noise (0% global feedback) (%)
N/A
Total Harmonic Distortion + Noise (100% global feedback) (%)
<0.05
Max power consumption (W)
2000
Damping factor
>400
Dimensions (mm)
483 x 190 x 533
Weight (kg)
45.4
Official link
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