Intusonic IntuForce 4SDL160 4 x 150W Stereo Amplifier

Intusonic IntuForce 4SDL160 4 x 150W-4 Ohm Stereo Amplifier

Overview

The Intusonic IntuForce 4SDL160 is a versatile four-channel stereo amplifier designed for professional audio installations. Delivering 150W per channel at 4 ohms, it is well-suited for applications in commercial venues, educational institutions, and houses of worship. Its flexible configuration options and robust performance make it ideal for both multi-zone audio distribution and dedicated stereo setups.

Design and Build Quality

Constructed with a full metal chassis, the IntuForce 4SDL160 ensures durability and longevity in demanding environments. The unit features a convection cooling system, eliminating the need for internal fans and thereby reducing operational noise--an essential consideration in noise-sensitive settings. The amplifier's design includes detachable rack ears and handles, facilitating straightforward installation and integration with standard 19-inch equipment racks.

Key Technologies and Features

• Class D Amplification: Utilises efficient Class D topology with a switch-mode power supply, providing high power output with reduced heat dissipation.
• Flexible Channel Configuration: Channels 3 and 4 are bridgeable via a rear-panel switch, allowing for increased power output when needed. The mode switch enables selection among 4-Zone, 2-Zone, 1-Zone, and 2.1 configurations, accommodating various audio distribution requirements.
• Integrated Active Crossover: Features an active crossover with four selectable frequencies (120/150/180/210Hz) for 2.1 mode, accompanied by separate satellite and subwoofer volume controls, enhancing audio clarity and balance across different speaker setups.
• Comprehensive Input and Output Options: Equipped with balanced XLR inputs with ultra-high Common Mode Rejection Ratio (CMRR) circuitry for long cable runs, and balanced TRS link connectors for signal throughput. Input signal forwarding switches allow for 1-to-4, 2-to-2, and 4-to-1 configurations without external cabling.
• Advanced Control Features: Rear-panel switches allow disabling of front-panel volume controls, adjustable maximum volume per channel, and switchable 100Hz high-pass filters per channel provide precise control over audio output and system behaviour.

Specifications

Performance and User Experience

The IntuForce 4SDL160 delivers clear and reliable audio amplification across its four channels, with minimal distortion and a high signal-to-noise ratio. Its flexible configuration options allow users to tailor the system to specific audio distribution needs, enhancing overall user satisfaction and system performance.

Q&A Section

Q: Can the IntuForce 4SDL160 be used in a 2.1 speaker configuration?

A: Yes, the amplifier supports a 2.1 mode with an integrated active crossover and selectable crossover frequencies, allowing for optimal integration of satellite speakers and a subwoofer.

Q: Is it possible to bridge channels for increased power output?

A: Yes, channels 3 and 4 can be bridged via a rear-panel switch, providing increased power output for applications requiring higher amplification.

Q: How does the amplifier handle cooling?

A: The IntuForce 4SDL160 employs a convection cooling system, eliminating the need for internal fans and ensuring silent operation.

Q: Are the front-panel volume controls lockable?

A: Yes, there is a rear-panel switch that allows users to disable the front-side volume controls, preventing unauthorised adjustments.

Q: What types of input connections are available?

A: The amplifier features balanced XLR inputs with ultra-high CMRR circuitry, suitable for long cable runs and professional audio installations.