Roksan K3 Power Amplifier


The K3 Power Amplifier is a high performance and powerful solution for taking your system to the next level.

An optimised power supply, a directly mains-powered power amplifier section and other key design features ensure high performance and reliability.

The 140 W (RMS) per channel (into 8 ohms) K3 Power Amplifier offers a simple yet very effective route for upgrading the musical performance of your system.

Available on back-order

SKU: K3_PowerAmp Category: Tags: , , Brand:


With a smooth and solid sound, the K3 Power Amplifier can be used in combination with the K3 Integrated Amplifier to form a bi-amplified or even tri-amplified system (with compatible speaker systems) delivering the ultimate power and control to your loudspeakers. Offering balanced XLR and single-ended RCA inputs and outputs, the K3 Power Amplifier will fit in with nearly all audio systems.

Key Features

  • Symmetrical amplifier layout
  • Optimised power supply layout, distribution and decoupling
  • Decoupling and power regulation to all stages
  • Directly powered power amp section
  • Optimised routing and short speaker output cables
  • Balanced XLR and single-ended RCA inputs and output
  • 0.5W standby operation with auto detect and a 30 minute standby timer


Amplifier Type Class-AB
Input RCA, XLR
Input Impedance 23 kohms
Input Sensitivity (115 W) – 900 mV
Outputs Speaker (L & R)
Power Output (Per Channel) > 140 W (8 ohms) /
> 220 W (4 ohms)
Power Supply 500 VA Ultra low noise toroidal transformer
Damping Factor >110 (8 ohms)
Frequency Response <3 Hz – >100 kHz (-3 dB)
Gain 31.6 dB
Harmonic Distortion <0.003 % 1 kHz – 8 ohms
Power Consumption Warm up mode <25 W,
Full Power <800 W
Signal to Noise Ratio 100 dB (ref. 900 mV)
Dimensions (W x H x D) 432 x 105 x 380 mm
Weight 13 kg