RD2607D is a compact full-aluminum side-cooling chassis custom-built for DIY power amplifiers, ideal for QUAD 405 and small Class AB amplifier boards. External dimension: 260×86×311mm, inner clearance: 212×62×269mm, low-profile design perfect for desktop placement. Robust aluminum construction: 6mm thick front panel, 4mm rear panel, 3mm top & bottom covers. Equipped with dual integrated 260mm aluminum radiators (0.48kg per side, 7mm base plate), paired with vented top cover for heat dissipation. Four front/rear panel cutout options available, pre-reserved for volume knobs and standard IEC inlet. Limited internal height suits flat slim toroidal transformers. All components are shipped disassembled for transit safety, featuring good shielding performance and clean minimalist appearance for home Hi-Fi builds.