HP4 vs Icon Audio HP205D
The HP205D's thd is 0.200% against the HP4's 0.500% and its output impedance 16Ω against 2Ω. Both share power @ 8ω (1W) and signal-to-noise (90 dB).
AI-generated product photo — not official manufacturer imagery.
HP4
EARAmplifiersHeadphone AmplifiersTube AmplifiersDiscontinued
Estimated price (community-sourced)
$3,800
Around — community and catalog average, updates slowly
About the HP4
The EAR HP4 is a high-end, transformer-coupled Class A vacuum-tube headphone amplifier designed by Tim de Paravicini. It uses 6SL7 triode valves and EAR’s Enhanced Triode Mode circuitry, with proprietary output transformers matched for both high- and low-impedance headphones. The amplifier accepts both single-ended and balanced signals and provides four headphone outputs: two intended for high-impedance headphones and two for low-impedance headphones. It also includes a built-in volume control and line-level outputs. Published specifications vary slightly by source and production description; the data below consolidates the reported technical information. The EAR HP4 should not be confused with the unrelated PreSonus HP4 headphone distribution amplifier.
Specifications
Power Specifications
Amplification power output and characteristics
- Power @ 8Ω
- 1W @ 8Ω
- Amplifier Class
- A
Analog Output
Analog signal output specifications
- THD
- 0.500%
- SNR
- 90 dB
- Output Impedance
- 2Ω
Connectivity
Input and output connections
- Bluetooth
- No
- Wi-Fi
- No
- Ethernet
- No
- Analog Inputs
- line, balanced
- Analog Outputs
- line, balanced
Physical Dimensions
Size, weight, and appearance
- Available Colors
- chrome, gold
Key Specifications
Power: 1W
Specifications are community-contributed and may not be accurate or complete. Verify all details with the manufacturer before making purchasing decisions. Terms & Conditions