An uncompromised analogue mastering system, the Focusrite Blue Range is hand-made in the UK, crafted to the highest standards: All Blue Range modules are machine-tooled in half-inch thick, deep blue anoplated aluminium, which is scratch-resistant and can be marked and unmarked forever. The chassis features recessed section grooves and styling motifs, porthole windows, etched silver control text, and firm-response illuminated switches. The pots are made by French company Sfernice to Focusrite’s own specification, made from conductive plastic, (the same material used by Neve and SSL for their console faders - it gives more sensitivity, there is no mechanical resistance of pot and it’s easy to make very small adjustments). There are MU metal cans around all mains transformers to reduce all electromagnetic radiation. The relays are gold plated silver in an inert gas, which means that the contact is low resistance, and the gas prevents any kind of corrosion of the surface of the contacts - the most perfect audio switching device ever designed - utterly passive with zero distortion. Blue Range processors do not feature transformers, since all transformers introduce a slight colouration into the signal path, which is usually not desired in the mastering environment. However, this colouration is subtle and some mastering facilities value the warmth that transformers bring, without adding significant distortion. For this reason, the input and output transformers are offered as an optional modification on all Blue products.