STB-15 SE Tube Amp 15W x2 Kit

STB-15 DIY Stereo Tube Amplifier Kit

Build your own high-quality STB-15 stereo tube amplifier with this complete DIY kit. Designed for audiophiles and tube amplifier enthusiasts, the STB-15 delivers excellent frequency response, clear detail, and the warm, natural sound that makes tube amplification so appealing.

The kit features a premium toroidal power transformer and two toroidal output transformers. Compared with traditional EI-core transformers, toroidal transformers provide higher efficiency, lower magnetic leakage, reduced hum and noise, and excellent channel separation for clean, detailed audio reproduction.

For easy assembly and a professional finished appearance, the kit includes a pre-finished amplifier chassis, IEC power inlet with EMI/RFI filtering, and power switch. With the essential components included, the STB-15 gives DIY enthusiasts an excellent foundation for building a high-performance stereo tube amplifier at home.

 Compatible Components
 Output Transformer: MS-15W60 ×2 or MS-10W70 x2
 Power Transformer: AS-1T300 or AS-1T350 
 Tube Sockets: 8-pin ×2 (for KT66,KT88, KT-120 and KT150) or 9-pin x1 (for 12AX7)
 IEC Power Inlet: CW2B-10A-T (included)
 Main PCB: STA-15 PCB 
 RCA Connectors: Panel-mount ×2
 Speaker Connectors: Panel-mount ×6
 Tubes: EL34, 6L6, KT-66 and KT88 series
Package Includes
 Main chassis & bottom plate
 Main STB-15 PCB 
 AS-1T350 Power transformer & CA-202 Cover
 MS-15W60 transformers x2
 IEC power inlet with fuse and switch
 6Vac green power LED
 Screws, feet and spacers