Loading... Please wait...Experience unmatched quality and performance with this premium-grade tube amplifier chassis, precision-engineered from heavy-duty 0.05" thick steel. Its rigid construction ensures exceptional durability while effectively minimizing vibration and hum interference for superior audio clarity.
The chassis features accurately pre-punched holes for tube sockets, RCA jacks, and speaker connectors, along with dedicated mounting points tailored for our toroidal power transformers and output transformers—making assembly clean and effortless.
For safe and noise-free operation, it includes a high-quality IEC power inlet with an integrated RFI/EMI filter, fuse, and power switch to suppress power-line interference. Three CA-series transformer covers are also included, offering both professional aesthetics and enhanced shielding.
The main PCB can be ordered directly from us or through third-party suppliers, with all mounting holes precisely aligned and fully compatible—no modifications required.
Compatible Components
Output Transformer: MS-30W25 ×2, MS-30W50 ×2 or MS-30W75 x2
Output Transformer Covers: CA-004 ×2 (included)
Power Transformer: AS-2TBxxx or AS-2TCxxx series
Power Transformer Cover: CA-004 (included)
Tube Sockets: 8-pin ×2, 8-pin ×2 (for KT66,KT88, KT-120 and KT150) or 4-pin x2 (for 300B)
IEC Power Inlet: CW2B-10A-T (included)
Main PCB: ST-300PCB (available soon)
RCA Connectors: Panel-mount ×2
Speaker Connectors: Panel-mount ×6
Tubes: 300B, or KT66, KT88, KT-120 and KT150 series
Package Includes
Main chassis + PCB cover plate
Bottom plate
Two side panels
Top cover with extended sidewalls
Power transformer cover
Two output transformer covers
IEC power inlet with fuse and switch
6Vac green LED
Screws and spacers