About this listing

Rupert Neve Designs MBT Master Bus Transformer

The Rupert Neve Designs MBT (Master Bus Transformer) is a premium, all-analog stereo signal processor engineered to add color, harmonic character, and dimension to mixes, stems, and master tracks. It acts as a comprehensive tonal sweetening hub built around custom Class-A transformer-coupled signal paths. The unit features six distinct, interactive sections designed for precise analog coloration: [1]Key Processing Sections

• Input Section: Includes a +/-12dB Trim control and a variable High-Pass Filter (sweepable from 15Hz to 150Hz) to clean up low-end mud. [1, 2]
• Shelf EQ: A musical, 2-band equalizer circuit with gentle slopes and minimal phase shifts. The low band covers 30Hz to 240Hz, and the high band spans 3kHz to 24kHz, with +/-9dB of gain. [1, 2]
• Color Comp: An all-new optical compressor optimized to introduce rich harmonic content. It features 2:1 and 5:1 ratios, a blend knob for parallel compression, and a sweepable high-pass sidechain filter (20Hz to 350Hz) to keep the bottom end from triggering pumping. [1, 2, 3, 4]
• Width Section: Derived from the SFE found on the Portico II Master Buss Processor, this circuit increases perceived stereo width. It includes a variable high-pass filter (50Hz to 800Hz) so your low frequencies remain locked in the center while mid and high elements spread out. [1, 2, 3]
• Super Silk Section: A significant evolution of the classic RND Silk circuit. For the first time, you can engage Silk Red (upper-mid and high harmonics) and Silk Blue (low and low-mid harmonics) simultaneously. It adds independent Harmonics and Zener Drive controls to push the interstage transformers into aggressive, vintage saturation. [1, 2, 3, 4, 5]
• Output Section: Includes a final +/-12dB Trim control to balance the gain staging after heavy processing, driving custom output transformers.
• This is a Mint Condition demo unit from an Authorized Dealer.

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