Observed arrival · 2026-10-25
DIY Amp’s hearing-first 300B builder
A concept demo for configuring a custom 300B single-ended amplifier, with a schematic that is meant to update as you choose parts and topology.
○Open
⊠Login
$Paid
†Ads
✦Pretty
●Pro
◎Niche
◉Human
⚑Risk
ƒJS
- For
- People choosing parts for a custom 300B amplifier
- Worth noticing
- The page labels its HKD estimates as demo placeholders, not a quote, and says its build-request flow places no order.
Field notes
The page organizes the build around a STANDARD configuration, with a stage-by-stage interface for component choices and explanations. It presents separate parts-kit and assembled-build estimates, but labels the HKD figures as placeholders and says the request control places no order. A contact form names Matthew, and the support area is presented as a shared chat.
Observed signals
Read the marks
Editorial observations of this landing page, not a rating.
○OpenPublic substance visible
⊠LoginAccess appeared gated
$PaidCommerce or pricing visible
◎NicheUnusually specific use
ƒJavaScriptBrowser-side code central
One card from the complete issue