Build your own ST-70 stereo amplifier with this complete DIY kit! Designed for audiophiles and hobbyists, this kit delivers excellent frequency response, clarity, and natural sound quality.

The kit includes a premium toroidal power transformer and two toroidal output transformers, providing superior efficiency, low noise, and excellent channel separation compared to traditional EI-core transformers.

For convenience and durability, the kit also comes with a finished chassis, IEC power filter inlet, and power switch—everything you need to assemble a professional-quality amplifier at home.

Features:

• DIY Hi-Fi push-pull stereo amplifier kit

• High-quality toroidal power transformer

• Two toroidal output transformers for superb sound performance

• Excellent frequency response with low distortion

• Pre-drilled chassis for easy assembly

• Designed for premium sound reproduction

What’s Included:

• 1x Toroidal Power Transformer AS-2TC300 & cover (can change: AS-2Txxx)

• 2x Toroidal Output Transformers MP-40W66 & covers

• 1x Pre-drilled main chassis & bottom 

• 1x IEC power inlet with RFI filter, switch, and fuse

• Mounting hardware

Note: Tubes, capacitors, resistors, and wiring are not included. This kit is intended for experienced DIY builders who prefer to select their own components for customization.

Take your audio system to the next level, build a true audiophile-grade amplifier and enjoy the rich, warm sound of tubes combined with modern transformer technology!

Additional Options:

• Contact us if you’d like to use a different power transformer for alternate B+ voltages.

• Low-cost PCBs are available from eBay and other suppliers.

• Best suited for 6L6, EL34, KT66 or KT88 tubes.