R_volution Chassis DIY-X700 + UBP-X700 multi-regions

The Sony UBP-X700, released in 2018, remains one of the few 4K Blu-ray players on the market to support Dolby Vision at an affordable price. Its switching power supply, however, limits the potential of the audio and video signal. R_volution’s DIY-X700 multi-region Chassis addresses both frustrations at once: an audiophile-grade linear power supply and the removal of all region locking, for both Blu-ray and DVD.

A chassis, not a player

The DIY-X700 is not a standalone Blu-ray player. It is a metal enclosure into which the motherboard and optical drive of the Sony UBP-X700 are transplanted. The Sony electronics remain intact: same interface, same menus, same 4K Ultra HD, Dolby Vision, and HDR10 playback features. What changes is everything around it.

The chassis is larger than the original plastic enclosure (43 × 28.23 × 7.17 cm, weighing 5 kg). It rests on wide feet suited to a hi-fi cabinet, and rack ears are included for integration into a technical rack. A dedicated grounding terminal completes the setup to eliminate ground loops in complex installations.

Linear power supply and carefully selected components

The original Sony switching power supply generates high-frequency noise and jitter, two phenomena that affect the stability of digital audio and video signals. R_volution replaces it with a linear power supply built around an 81 W toroidal transformer in OFC (oxygen-free) copper, paired with a Toshiba voltage regulator and a Lintec LDO (low-dropout) regulator.

On the power supply board, the capacitors have been selected from Japanese manufacturers well known in the audio field: Nichicon and Nippon Chemi-Con for the audio circuits, WIMA for the video circuits. The goal is simple: to provide cleaner, more stable current to the Sony player’s printed circuit board.

According to R_volution, the gains result in deeper blacks, more faithful color reproduction, better rendering of film grain, and a more precise multichannel audio signal. These improvements still depend on the rest of the system: amplifier, speakers, cabling, display. On an already refined setup, the difference will be more noticeable than on an entry-level system.

Borderless playback

The multi-region version removes the Sony player’s geographical restrictions. Blu-rays from regions A (Americas, Southeast Asia), B (Europe, Africa, Oceania), and C (East Asia, Russia) are all supported, as are DVDs from regions 0 to 8.

In practical terms, this opens access to U.S. editions (often the first available), Japanese imports (regularly enhanced with exclusive bonus features), and European catalogs, all on a single device. Region selection is done via the remote control, seamlessly.

Technical specifications

General overview

The R_volution Chassis DIY-X700 Multi-Regions is a modified version of the DIY chassis designed for the Sony UBP-X700, integrating a multi-region function. It allows playback of all Blu-rays and DVDs from around the world, while benefiting from the chassis’s audiophile enhancements (linear power supply, high-end components).

Highlights

• Multi-region Blu-ray and DVD playback
• Compatible with Blu-ray discs from regions A / B / C
• Compatible with DVDs from regions 0 to 8
• Audiophile linear power supply (toroidal transformer)
• Improved picture: contrast, colors, sharpness
• More precise and dynamic digital audio
• Easy installation (DIY or pre-modified version)

Multi-region function

• Blu-ray
  • Playback of regions A, B, C
  • Compatible with international Blu-rays without restriction
• DVD
  • Playback of regions 0 to 8
  • Compatible with all global standards
• Region switching
  • Selection via remote control (depending on modified version)
  • Transparent operation for the user
• Access to US editions (region A), Europe editions (region B), and Japan / Asia imports

Power supply

• Type: linear power supply
• Transformer: 81 W toroidal OFC copper
• Regulation
  • Toshiba
  • Lintec (low-noise LDO)

Video

• Compatible with 4K Ultra HD Blu-ray
• Dolby Vision / HDR10 (via Sony player)
• Enhancements
  • Deeper blacks
  • Better color reproduction
  • Reduced video noise

Audio

• High-quality bitstream output
• Supported formats: Dolby Atmos, DTS:X
• Enhancements
  • Signal stability
  • Reduced jitter
  • Better dynamics

Audiophile components

• Capacitors: Nichicon and Nippon Chemical
• Video capacitors: WIMA
• Advanced electrical filtering

Control and integration

• Sony-compatible IR remote control
• Compatible systems: Crestron, Control4, RTI, Savant
• Rack installation possible
• Ground connector (anti-interference)

Installation

• Available versions
  • DIY kit to assemble
  • Pre-assembled version with Sony player included
• Complete guide and video provided
• Installation time: a few minutes

Dimensions and weight

• Dimensions: 43 × 28.23 × 7.17 cm
• Weight: 5 kg

Power consumption

• Playback: 12 W
• Standby: 0.5 W

Operating conditions

• Temperature: 10 to 30 °C
• Humidity: 30 to 70 %

Included accessories

• IR remote control
• 4K HDMI cable
• Rack kit
• Power cables (EU / US / UK / AU)

Positioning

Product intended for:

• International Blu-ray collectors
• Home theater enthusiasts
• Users wishing to remove regional restrictions
• High-end installations