Furman PS-8R/E III

Furman PS-8RE III: Continuing a Standard in Rack Power Conditioning

In the studio and live sound world, Furman has established itself as a benchmark when it comes to ensuring reliable mains power for an audio system. The PS-8RE III fits within this philosophy: offering a rack format that is easy to integrate, designed for professional setups, while incorporating proprietary technologies focused on filtering, protection, and power management. This "III" version extends Furman's approach with a set of features designed to preserve signal quality and equipment longevity, especially when multiple devices share the same power source in a rack.

Who Is It For and What Are Its Uses?

The Furman PS-8RE III is aimed at users who want controlled power supply and clean mains distribution for sensitive equipment: audio interfaces, preamps, converters, processing gear, monitoring systems, as well as computer and video equipment in a technical rack. In the studio, it helps reduce mains-related disturbances (noise, high-frequency interference) that can infiltrate the audio chain. In live performance, it provides an additional layer of security and a more methodical power-up sequence for equipment, which is valuable when setup time is limited and reliability is non-negotiable.

Its 1U format and IEC-320 connectivity make it a particularly practical solution for mobile racks, control rooms, compact studios, and fixed installations requiring centralized, clean, and organized power distribution.

Filtering, Protection, and Sequencing: The PS-8RE III's Key Trio

LiFT: Linear Filtering Technology Designed for Audio

The LiFT (Linear Filtering Technology) aims to improve power quality by reducing unwanted mains noise while maintaining a consistent response. The result: a more stable electrical environment for your devices, especially useful when stacking multiple digital and analog machines in the same rack (potential sources of noise, hiss, or interference).

SMP, EVS, and TVZ-MOV: Protecting Equipment Against Power Hazards

The PS-8RE III combines several Furman protection components, including SMP and EVS, as well as a high-current TVZ-MOV. The goal is to protect connected devices from electrical variations and events that could disrupt a session or damage equipment. This is particularly important for racks that move frequently (stage, tours, gigs) and studios located in shared electrical environments (older buildings, overloaded power strips, unstable networks).

Sequencing: Cleaner and Safer Power-Up

The inclusion of a power-on and power-off delay for connected devices facilitates a more gradual startup procedure. This helps limit switching noises in speakers and reduces sudden inrush currents, which can be problematic when multiple devices power on simultaneously. For a rack including preamps, processors, converters, and monitoring, this sequencing logic contributes to a smoother workflow, whether in the studio or live.

Front Outlet and BNC for Lamp: Practical Everyday Features

The front outlet allows quick connection of a temporary device (measurement tool, charger, laptop, stage accessory) without disturbing the rear rack wiring. At the rear, the dedicated BNC connector for a 12 V lamp (0.5 A) fits well within a rack setup: discreet and clean lighting without adding multiple external power supplies.

Technical specifications

Rackable	Yes	Type	Box
Category	sound reinforcement accessory

Voltage stabilizer	yes	Ground return protection	10 dB at 10 kHz, 40 dB at 100 kHz
Current	10 Amperes	Power-on delay for connected devices	yes
Voltage	230 V	Power-off delay for connected devices	yes
Rear outlets	8 IEC-320 230 V outlets	Rear BNC connector for lamp	12 V / 0.5 A
Front outlet	1 outlet	Format	19-inch rack
LiFT (Linear Filtering Technology)	yes	Height	1U
SMP protection	yes	Depth	18 cm
EVS protection	yes	Weight	3.2 kg
High-current TVZ-MOV	yes