Balanced LCR Phono Stage for MC Step-Up Systems

(Preview Concept)

 

This phono stage concept is designed as a dedicated analogue load and filtering stage for MC step-up transformer systems, primarily QVATTVOR and SVPER QVATTVOR architectures.

It is not positioned as a standalone MM solution, but as the next stage in a fully transformer-based signal chain.

 

System Context

 

In QVATTVOR-based systems, the MC cartridge signal is preserved in a fully differential structure through the step-up transformer stage.

This results in a high-integrity analogue signal that requires a phono stage designed not to reinterpret the signal, but to properly terminate, filter, and convert it within a controlled analogue environment.

 

Design Direction

 

The future balanced LCR phono stage is designed to operate as:

• a controlled analogue load for transformer-based MC systems,
• a precision filtering stage using LCR topology,
• a balanced interface preserving transformer-derived symmetry,

Its role is not signal reconstruction, but controlled analogue termination of an already structured signal.

 

Current Implementation Context

 

At present, transformer-based MC systems (QVATTVOR / SVPER QVATTVOR) define the differential signal structure at the earliest stage of the audio chain.

The phono stage operates downstream as a complementary analogue system, interacting with this structure rather than replacing it.

 

Future Direction

 

A next-generation balanced LCR MM-only phono stage is under development, featuring:

• fully balanced analogue LCR topology,
• external power architecture,
• direct compatibility with transformer-based MC systems.

It will extend the QVATTVOR philosophy into the phono amplification stage, maintaining structural signal continuity from cartridge to output.

 

System Position

 

MC Cartridge
→ QVATTVOR / SVPER QVATTVOR (fully differential step-up)
→ Balanced LCR Phono Stage (future architecture)