Retired Product Upgrades

Retired Product Upgrades

 

 

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SmashQuiet
Attenuator Upgrade for Smash DHT Preamp

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Smash-up Upgrade
for Smash DHT Preamp

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S.E.X. 2.1 C4S Upgrade Kit

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PJCCS Upgrade for Quickie

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Iron Upgrade Kit
for S.E.X. Kit 2.0

Top of the line Mainline headphone amp kit on sale thru June 23rd. We have moved! Check the Contact page. Dismiss