These ultra-high quality audio racks represent the "best of the best" and are an upward design progression based on our highly successful 45-Series racks.These racks are hand crafted using only premium-grade materials and are computer modeled and stress analyzed for superior performance. Incorporating an extensive amount of custom-machined and fabricated components, the manufacturing cost is somewhat higher than our other product lines, although the performance exceeds that of competitive racks costing much more. Made in the USA!The unique X-frame design, borrowed from our classic 45-Series, provides exceptional strength while maintaining a clean, "open air" appearance. The resistance to torsional flexing far exceeds that of most other frame designs. The massive proportions of the cross-beams and columns are simply "pure overkill".This rack is intended for use in serious, high-end systems and includes 19x24 inch platform at the top. Levels one, two and three use our standard 18x18 inch platforms and may be upgraded to larger one for an additional charge. Available with platforms trimmed in solid cherry or black .Please refer to our website for dimensions and complete specifications.