Stat vs Unison Research SH
The SH's output voltage is 0.5V RMS against the Stat's 0.2V RMS and its input impedance 20Ω against 50Ω. Both share class (A).
AI-generated product photo — not official manufacturer imagery.
AmplifiersHeadphone AmplifiersTube Amplifiers
Estimated price (community-sourced)
$1,500 - $1,699
Around — community and catalog average, updates slowly
About the Stat
The Bottlehead Stat is a custom-made, fully assembled tube electrostatic headphone amplifier/energizer designed for electrostatic headphones. It uses a zero global feedback, class A circuit with a single input, balance control, and level control. The amp supports both 580V Stax Pro Bias and 230V Stax Normal (legacy) bias headphones, and Bottlehead notes compatibility with electrostatic headphones from Stax, Koss, Hifiman, and Nectar Sound. It is sold only as an assembled unit because of the high voltages inside the chassis. Bottlehead also describes the design as a two-stage differential amplifier per channel with C4S constant-current sources and a tube-rolling-friendly output stage.
Specifications
Power Specifications
Amplification power output and characteristics
- Amplifier Class
- A
- Input Impedance
- 50Ω
Analog Output
Analog signal output specifications
- Output Voltage
- 0.2V RMS
Connectivity
Input and output connections
- Bluetooth
- No
- Wi-Fi
- No
- Ethernet
- No
- Digital Inputs
- unbalanced
Physical Dimensions
Size, weight, and appearance
- Available Colors
- powder-coated chassis
Specifications are community-contributed and may not be accurate or complete. Verify all details with the manufacturer before making purchasing decisions. Terms & Conditions