ULTRA 1 E Manufacturer: Stillpoints SKU: A-U-1-E Pack Size Please select 3 4 [+£240.00] ÂŁ720.00 Qty: Add to cart Ship to Select country United Kingdom of Great Britain and Northern Ireland * Other * Shipping Method Name Estimated Delivery Price No shipping options Apply Custom wishlist OK Add to wishlist Add to compare list The Ultra I E is Stillpoints’ compact isolation footer designed specifically for audio electronics — DACs, preamps, CD transports, phono stages, and amplifiers.At its core is a single technology pocket containing Stillpoints’ 4th-generation ball stack: precision ceramic bearings arranged within a stainless steel housing to both isolate your component from external vibration and evacuate the micro-vibrations generated internally by transformers, capacitors, and circuits.This two-way filtering is what separates Stillpoints from conventional isolation. Most products only address vibrations in the audible frequency band (20Hz–20kHz), which can shift tonality. The Ultra I E operates above 20kHz — removing noise without altering your system’s tonal character.