FPB-600 vs Evolution 403e
The Evolution 403e's power @ 8ω is 400W against the FPB-600's 600W, its power @ 4ω 800W against 1.2kW, its output impedance 0.055Ω against 0.03Ω, and its output voltage 57.0V RMS against 4.3V RMS.
AI-generated product photo — not official manufacturer imagery.
AmplifiersPower AmplifiersDiscontinued
Estimated price (community-sourced)
$4,750
Around — community and catalog average, updates slowly
About the FPB-600
The Krell FPB-600 is a two-channel Full Power Balanced solid-state power amplifier rated at 600 watts per channel into 8 ohms, 1,200 watts into 4 ohms, and 2,400 watts into 2 ohms. It uses Krell’s Sustained Plateau Bias circuitry and provides balanced XLR and single-ended RCA inputs, with a balanced speaker-output stage. The amplifier measures approximately 19 inches wide by 10 inches high by 25.5 inches deep and weighs about 180 pounds. Its high-current design is intended to drive demanding loudspeakers with substantial power and control.
Specifications
Power Specifications
Amplification power output and characteristics
- Power @ 8Ω
- 600W @ 8Ω
- Power @ 4Ω
- 1.2kW @ 4Ω
- Amplifier Class
- A
Analog Output
Analog signal output specifications
- THD
- 0.020%
- Output Voltage
- 4.3V RMS
- Output Impedance
- 0.03Ω
Physical Dimensions
Size, weight, and appearance
- Dimensions
- 483 × 260 × 650 mm (W × H × D)
- Weight
- 82 kg (181 lbs)
Key Specifications
Power: 600W
Specifications are community-contributed and may not be accurate or complete. Verify all details with the manufacturer before making purchasing decisions. Terms & Conditions