Rupert Neve Designs Portico II Master Buss Converter

The ultimate tool for creating digital signals with the tone, transparency, and power expected from Rupert Neve Designs.

Whether you’re tracking, printing mixes or mastering, the Master Buss Converter is a revelation in quality and functionality of A-D conversion technology. The analog drive circuitry allows the MBC’s converter to be fed by either a class-A transformerless path for maximum transparency, or by custom interstage audio transformers with variable Silk for a wide variety of tonal enhancements. Coupled with an astonishingly musical limiter, the MBC is always the best choice to capture your analog signals with breathtakingly three-dimensional accuracy.


With legendary sound and a groundbreaking feature set, the Master Buss Converter is a new digital standard from the master of analog – and the ultimate tool for capturing your tracks, mixes, and masters.

Selectable Analog Drive Paths
The very best of class-A transformerless and custom transformer-coupled designs at the touch of a button.

Transformer Path with Silk / Texture
Add weight and punch with a dedicated custom inter-stage transformer before the converter. Silk / Texture allows you to dial in the harmonic content and drive saturation of this signal path.

Class-A Transformerless Path
Maximizes clarity and transparency of the input signal.

Active Compound Release Analog Limiting
Push your levels further with fewer artifacts than plug-ins, and introduce clip safety for tracking or broadcast.

Side Chain HPF
Tighten the response of your limiting with a 12dB / Octave SC HPF sweepable from 20Hz to 250Hz

24-bit/192kHz Reference Conversion
Unparalleled analog capture with precision clocking using top-of-the-line chips.

Multi-Standard Connectivity
Connect to any of your digital devices with AES, S/PDIF and TOSLINK all simultaneously available.

Precision Clocking
Maximum accuracy with minimal jitter and phase noise, able to operate as a master clock or sync from another master.

US and EU parcels ship via UPS, ETA 1-7 working days from pickup day zero. That also applies to most locations worldwide.

All shipments are fully insured.

Bigger shipments requiring pallets or custom made crates ship to US, CA, JP, CN, AU and other outside of EU locations via DHL Air Freight, ETA is normally approx. 7-14 working days from pickup day zero.

Big shipments inside EU ship via different freight companies, recently mostly via ACE Logistics. Freight forwarders can use different courier companies for deliveries to final destinations.

Palletising and crating time can vary depending on the size of the shipment and packaging queue. We pack all our shipments with great care.

You are most welcome to pick your order up yourself from our Retrosonic Pro Audio showroom, studio and warehouse in Tallinn, Estonia.

We ship worldwide – contact us for a personal shipping quote or any other questions.

VAT (Value Added Tax) can be deducted if you have a company with a valid EU VAT number or if you're based outside of the EU. Non-EU buyers pay all and any import tax and duty as regulated by their local customs.