DC Offset Protection

Multiple

Protection

Systems

Note:

Earthing

Earth

Isolation

Switch

Highest

Quality PCBs

and

Components

Bi-Wiring Made Easy

Soft-Start

Circuitry

Highly

Powered

The 350 is equipped with a number of protection systems, isolated from all signal carrying circuits via opto-couplers, to protect both itself and ancillary equipment.

This system senses if any direct current (DC) is present at the 350 output terminals and disconnects the output to avoid potential speaker damage. DC may be present due to ancillary equipment feeding DC into the input or an amplifier fault.

Short-Circuit/Overdrive Protection

This system senses if there is a short circuit across the 350 output terminals and disconnects the output to avoid amplifier damage. It also senses if the 350 is being driven outside acceptable operational parameters. An example of this would be driving a 1Ω speaker at very high levels.

After the short circuit or overdrive source is removed, the 350 must be turned off then back on to reset and resume operation.

Thermal Protection

This system senses if the 350 is overheating and disconnects the output until a safe operating temperature is reached, at which time the unit will automatically resume normal operation.

Perreaux engineers pay particular attention to designing the product to ensure maximum separation between internal signal and power earths, only meeting at a central starred point.

The toggle switch on the rear of the 350 allows the internal circuitry to be isolated from the mains earth, whilst still maintaining an earth connection to the chassis. This ensures the potentially fatal practice of using an AC cord-set with no earth connection, to alleviate system hum, is not required.

Quality fibreglass PCBs, featuring heavy copper tracks and high-grade components, are used throughout the 350. This provides added stability under variable thermal or electrical loads and assures maximum signal integrity, separation and product life.

Dual pairs of binding posts per channel allow bi-wiring of speakers to be conducted easily.

The 350 utilises soft-start circuitry to protect the fuses and/or circuit breakers in your home’s mains power supply. Without this circuit, the huge inrush current required to charge the 60,000PF of power supply smoothing capacitance can blow the fuses or trip the circuit breakers.

Capable of continuously delivering 350WRMS into 8Ω (600WRMS into 4Ω), the 350 is highly powered. Utilising eight high current Toshiba MOSFETs per channel, the 350 handles even the most difficult loads with ease.

Prisma 350 specifications

The Perreaux Prisma 350 is an innovative and sophisticated integrated amplifier designed to elevate the listening experience for audiophiles and music enthusiasts alike. Renowned for its robust construction and exceptional audio quality, the Prisma 350 stands out as a versatile piece of equipment in the world of high-fidelity sound systems.

One of the key features of the Prisma 350 is its impressive power output. With a strong performance of 175 watts per channel into 8 ohms, it is capable of driving a wide range of speakers, making it highly adaptable to various listening environments. This level of power ensures that music is delivered with clarity and authority, resulting in a rich and immersive listening experience.

The Prisma 350 utilizes advanced Class A/B amplification technology. This design offers the best of both worlds, delivering the warmth and detail often associated with Class A amplifiers while maintaining the efficiency and power of Class B designs. This combination allows the Prisma 350 to reproduce music with accuracy, ensuring that even the most subtle nuances in recordings are faithfully rendered.

In terms of connectivity, the Prisma 350 boasts a comprehensive array of input options. It includes multiple RCA, balanced XLR inputs, and a built-in phono stage for vinyl enthusiasts. Additionally, it features digital inputs such as USB, optical, and coaxial, ensuring seamless integration with modern digital sources. The inclusion of Bluetooth capability further enhances its versatility, allowing for effortless streaming from mobile devices.

Another noteworthy characteristic of the Prisma 350 is its user-friendly interface. The amplifier is equipped with a clear, intuitive display along with a well-designed remote control, making it easy to navigate settings and adjust sound preferences. The integrated DAC (digital-to-analog converter) elevates digital audio quality, ensuring that even high-resolution files are played back with precision.

Constructed with robust materials, the Perreaux Prisma 350 not only looks elegant but is also built to last. Its heat management system ensures optimal performance without overheating, providing peace of mind during extended listening sessions.

In summary, the Perreaux Prisma 350 is a high-performance amplifier that combines power, versatility, and advanced technology to create an exceptional audio experience. With its rich feature set, attention to detail, and superior build quality, the Prisma 350 is an excellent choice for those seeking to enhance their musical enjoyment at home.