HA540 MK2 vs HA543
The HA543's power @ 8ω is 0.326W against the HA540 MK2's 0.332W, its signal-to-noise 92 dB against 80 dB, its thd 0.008% against 0.040%, and its input impedance 10Ω against 47000Ω.
AI-generated product photo — not official manufacturer imagery.
AmplifiersHeadphone AmplifiersTube Amplifiers
Estimated price (community-sourced)
$199
Around — community and catalog average, updates slowly
About the HA540 MK2
The Bellari HA540 MK2 is a hand-built, pure Class A stereo headphone amplifier utilizing a 12AX7 vacuum tube running at 150 regulated volts for rich harmonic texture and natural analog response. It features zero-feedback design, dual input channels (high and low gain paths), and robust power output suitable for a wide range of headphones from consumer to audiophile-grade. Ideal for pairing with CD players, computers, DACs, or phones, it delivers exceptional clarity, depth, and musicality with low distortion and high gain. Manufactured in Salt Lake City, UT, with a 1-year warranty.
Specifications
Power Specifications
Amplification power output and characteristics
- Power @ 8Ω
- 0.332W @ 8Ω
- Amplifier Class
- A
- Input Sensitivity
- 1.0V RMS
- Input Impedance
- 47000Ω
- Max Input Voltage
- 15.0V RMS
Analog Output
Analog signal output specifications
- THD
- 0.040%
- SNR
- 80 dB
- Output Impedance
- 2000Ω
Connectivity
Input and output connections
- Bluetooth
- No
- Wi-Fi
- No
- Ethernet
- No
- Analog Inputs
- RCA, 3.5mm
- Analog Outputs
- 1/4", 3.5mm
Physical Dimensions
Size, weight, and appearance
- Dimensions
- 153 × 138 × 64 mm (W × H × D)
- Weight
- 0.9 kg (2 lbs)
Key Specifications
Power: 0.332W
Specifications are community-contributed and may not be accurate or complete. Verify all details with the manufacturer before making purchasing decisions. Terms & Conditions