Krell KSA300S Stereo Power Amp

  • $5,000.00
    Unit price per 
  • Save $8,000
Shipping calculated at checkout.

Legendary Krell KSA300S power amp for sale. Best offer takes it - contact us if interested. This amplifier weighs 185 lbs, so a local pickup is needed. The amp appears to work fine, however I don't have a complete history on it. Buyer is responsible for any issues after the fact. This is a beast of an amp that can deliver 2400 watts into 1 Ohm. It has a 5kVA power transformer(!), and 272,000µF of filter capacitance. The KSA300S was a finalist for Stereophile's Component Of The Year and Amplifier Of The Year. Link to Thomas Norton's Stereophile review:

Note that for full performance, 20 Amp electrical service is recommended.



Type: Solid-state stereo power amplifier.

Year: 1994.

Power rating: 300Wpc into 8 ohms, doubles with each halving of load impedance down to 1 ohm (24.8dBW).
Frequency response: 20Hz–20kHz, +0.0dB, –0.1dB; 1Hz–150kHz, +0.0dB, –3dB. Distortion: <0.1% at 1kHz, <0.3% at 20kHz, full power.
Slew rate: 100V/µs.
Input sensitivity: 2.5V rms.
Gain: 25.5dB.
Damping factor: >120.
S/N ratio: 110dB.
Input impedance: 47k ohms.
Power consumption, idle: 130W.
Serial number: 34-40300
Dimensions: 19" W by 8.5" H by 24" D.
Weight: 185 lbs (net).

Includes: Original box and paperwork, remote control