KRELL KST-100

Commentary

Stereo power amplifier designed to be paired with KSL.

The input stage of the circuit is class A operation, and the output stage is based on the orthodox class A operation circuit that supplies sufficient idling current. However, only the circuit that becomes large due to high power is class AB circuit.
As a result, most of the music signal is reproduced in the class A operating range during actual operation, and only the strong dynamic range is handled by the class AB. Thus, both high power and high sound quality are achieved.

It is designed to be able to drive completely even when the impedance of the speaker is low. The output is doubled linearly as the impedance becomes low, and the output of 400W/ch is secured at 2 Ω.

It is equipped with two input terminals, and one is a balanced input by XLR connector.

Two speaker output terminals per channel are installed in parallel for bi-wiring.

It can also be used as a high-power monaural amplifier by changing the switch.

Model Rating

Type	Stereo power amplifier
Output	200W + 200W (4 Ω) 100W + 100W (8 Ω) 400W (8 Ω)
Maximum power output	112W
Input sensitivity	1.5V
Input impedance	47k Ω
Frequency Characteristics (Power Band Width)	5 hz to 50 khz -3dB
Distortion Factor (THD)	0.1% or less
Signal-to-noise ratio	96dB
Damping factor	150
Power consumption	150W at all times 425W maximum power consumption
External dimensions	Width 450x Height 163x Depth 370 mm
Weight	19kg