Bottlehead Crackatwoa Headphone Amplifier
Best high fidelity audio for dedicated DIY enthusiasts.
This premium headphone amp kit builds upon the beloved Crack circuit with an upgraded power supply and integrated Speedball. It offers enhanced dynamics and resolution, perfect for high-impedance headphones, but requires some building experience to unlock its full potential.
$965.00
at
Bottlehead
More Crack options
Who it's for
- Audiophiles seeking a rich, engaging, and high-fidelity listening experience
- Enthusiasts who enjoy hands-on projects and understanding their gear's internals
- Savvy consumers desiring top-tier audio quality without the premium pre-built cost
Who should skip it
- Beginners or those lacking experience with intricate electronic assembly
- Listeners primarily using low-impedance or in-ear monitor headphones
- Impatient builders or those uncomfortable troubleshooting electronic circuits
Performance breakdown
High-Impedance Synergy
Specifically engineered to make high-impedance headphones sing with authority and grace.
Sonic Resolution
C4S active loads deliver exceptional detail and a remarkably quiet noise floor.
Build Complexity
Requires significant soldering experience and patience to assemble correctly.
Input Versatility
Three switchable RCA inputs offer rare flexibility for a tube amplifier.
Bass Control
Shunt regulation provides the tight, punchy low-end response tube amps often lack.
Upgrade Potential
A tinkerer's dream with endless room for component rolling and circuit modifications.
Key Specs
Tube Complement
One 6080, one 12AU7, two 6AQ5s
Compatibility
High-impedance headphones (200 ohms or higher)
Amplifier Technology
Vacuum Tube
Power Supply
Upgraded with dual 6AQ5 tubes for shunt voltage regulation
Inputs
Three switchable RCA inputs
Controls
Built-in balance control
Max supported impedance
600 ohms
Form Factor
Desktop
Power Source
AC Powered
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