Isol-8 PowerLine Ultra Power Strip

Transmodal Filtration · High Current Sockets · Full-Featured Power Conditioner

The Isol-8 PowerLine Ultra is a highly regarded high-end power strip from the British Isol-8 PowerLine series. It employs exclusive Transmodal filtration technology to effectively suppress common-mode and differential-mode noise without introducing noise into the ground line, providing a cleaner power supply for your system. Equipped with high-current sockets designed specifically for amplifiers, and featuring surge protection, it is suitable for mid-to-high-end audio systems.

Its exquisite aluminum alloy top plate and robust construction make it a practical choice for improving system performance.

Basic Product Information

• Type: High-end power strip / power conditioner
• Number of Sockets: 4 sockets (standard version) or 6 sockets (Ultra 6 Way)
• Configuration: 1–2 high-current sockets + remaining for source components
• Key Technologies: Transmodal filtration + high-current shunt filtration + surge protection
• Input: IEC socket (power cord to be purchased separately)
• Construction: 6mm CNC aluminum alloy top plate + steel chassis
• Origin: Designed and manufactured in the UK
• Warranty: 5 years

Core Technology Highlights

• Transmodal Filtration Technology: Multi-stage filtration, simultaneously addressing common-mode and differential-mode noise without polluting the ground line
• High-Current Dedicated Sockets: Equipped with high-current shunt filtration, suitable for high-current equipment such as amplifiers and power amplifiers
• Source Dedicated Sockets: Optimized for low-to-medium current equipment such as CD players, streamers, DACs, and phono preamps
• Surge and Spike Protection: Provides additional safety assurance
• 6mm CNC Aluminum Alloy Top Plate: Non-magnetic, non-resonant, robust construction
• Silver-plated Copper + PTFE Insulated Internal Wiring: Excellent transmission characteristics
• Hinged Socket Covers: Protect unused sockets and prevent dust ingress
• Earth Line Choke (common to series): Suppresses ground line RF noise

Detailed Specifications

• Socket Configuration:
  • 4-socket version: 1 high-current + 3 source
  • 6-socket version: 2 high-current + 4 source
• Maximum Current:
  • Source sockets: Single / all approximately 6.3A
  • High-current sockets: Single / all 10A
  • Overall maximum 10A
• Input: IEC 10A socket
• Dimensions (4-socket version): Approximately 400 × 83 × 88 mm (excluding connectors)
• Weight (4-socket version): Approximately 2.3 kg
• Construction: Titanium anodized aluminum alloy top plate + black powder-coated steel chassis
• Voltage: 230V version (suitable for 220–240V)

Sound Performance and Qualities

The PowerLine Ultra effectively reduces background noise, making the sound cleaner and more expansive. Bass is deeper and more controlled, dynamics are more stable, details and layers are richer, the soundstage is wider, and imaging is more precise. The musical rhythm and flow are more natural, presenting an overall cleaner and more musical performance.

Reviews and users generally report that it significantly improves system clarity and separation without sacrificing dynamics.

Online Reviews

• Users and Media: Wider soundstage, more precise imaging, more powerful and controlled bass, more delicate treble.
• Future Shop User: "Improvements far exceeded expectations, with significant enhancements to soundstage, imaging, bass, and treble."
• Several users affirm its "effective power purification without dynamic compression," making it a practical upgrade for mid-to-high-end systems.