Notice: Change in Bottlehead ownership
Notice: Read about Bottlehead's ownership change.
Get 10% off when you order 2 or more amplifier kits.
Questions? Start with our forums.
Not sure where to start?Try these collections:
This site uses cookies for better user experience and analytics.
Can you improve upon perfection? We think so. Our upgrades can bring additional functionality or reduce. Buy upgrades whenever you want, but we recommend building your kits stock before upgrading.
Speedball 1.1 Upgrade for Crack Amplifier
Moreplay Upgrade Kit
Stereomour II Shunt Regulator Upgrade Kit
BeePre2 Output Upgrade - Hybrid Shunt Regulator and Low Impedance Balanced Output
DC filament supply for Stereomour II amplifier
DC filament supply for Kaiju 300B amplifier
Bee2Quiet Stepped Attenuator/Constant Current Source Upgrade for BeePre2
MourQuiet Stepped Attenuator Upgrade for Stereomour II
TwoQuiet Stepped Attenuator Upgrade for Crackatwoa Headphone Amplifier
S.E.X. 3.0 C4S Upgrade Kit
Integration Upgrade for Reduction Phono Preamp
Customer service
You can do this! If you run into issues, start by engaging our incredible user forum.
Fast, Safe Shipping
We pack and ship after you order using high-quality packing materials.
Secure payment
Your payment information is processed securely
