Design Ideologies
The Thesis range represents a perfect synergy between technique and emotion. It’s a range that’s dedicated to the most demanding audiophiles. Distinguished by the absolute lack of compromise and the very high technological content, the Thesis designs feature parameters of excellence and utilise components of absolute quality. The Thesis range, highly regarded by experts all over the world; represent a universal reference point for high-end audio. They’re a project of high engineering focused on extraordinary musicality, transparency and naturalness. Put succinctly; Thesis amplifiers are the result when digital technology is perfect integrated with modern analogue powerhouses.
Based On Superior Technology
The Thesis amplifiers build on the expertise developed with the HV Venti, enhanced by modern digital innovation. The result is a seamless integration of high-end analog performance with advanced digital features in a single product. Thanks to Full digital audio high-definition technology, in-car audio reaches a new standard of clarity and precision; combining specialized knowledge in mobile sound reproduction. The Thesis amplifiers are designed for complete flexibility. Their internal microprocessor allows for full control and fine-tuning, making them adaptable to virtually any system configuration.
Design Features
Although unique in their own right; all Thesis amplifiers share various technologies and methodologies. We canvass but a few of these below.
Dual Power Bias Control
A revolutionary function called dual power was introduced for the first time in the HV venti. Controlling the amplifier’s output power configuration, this function allowed the predetermination of the amplifiers output power and of the grade of the outputs operational class. There are multiple presets which range from the energy saving function, thus allowing musical enjoyment for extended periods of time with the vehicles engine off; through to high current where the power is the priority even for difficult loads. Then there is also a high bias class A topology, which is the best choice for musicality.
Full Digital Control
The Thesis amplifiers feature built-in ACS technology, allowing them to connect to a computer via the Audison Control Network software. This gives you easy, centralised control over all Thesis amplifiers in the system. The internal microprocessor records key information such as the serial number, operating hours and critical performance data. Through the software you can also personalise the amplifier with the owner’s name and save custom system settings. Users can fine-tune sensitivity, monitor operating conditions and even adjust the power supply and amplifier class. This puts a wide range of controls at your fingertips.
Crossing The Streams
The Thesis series carries forward the proven analog crossover design of the HV Venti, combining simplicity with flexibility. Each Thesis amplifier includes a dedicated external crossover module. Using onboard switches, you can configure a 12 dB / octave Butterworth filter in high-pass, low-pass or band-pass modes. When models like TH Uno, TH Due or TH Quattro are used in mono; the filter slope can be increased to 24 dB / octave for greater control.
Superior Power Supply
The power supply system consists of five separate units. A dedicated flyback supply powers the low-level signal section using Synchro-PWM operation, while four high-efficiency supplies deliver power exclusively to the output stage. These output supplies operate in pairs to generate positive and negative waveforms, managed by a specialized control circuit. This design having long been a hallmark of Audison, one which vastly improves speed and responsiveness. In digital input mode when paired with the DRC controller, the amplifier’s microprocessor converts D-CAVC into a full-featured volume control. This allows adjustment of master volume, balance, fader and subwoofer level through the controller.
Multiple Inputs
The input panel includes AD Link connectors, designed to receive digital signals from compatible Audison sources or processors and pass them along a full high definition digital audio chain via shielded Cat5 cables with RJ45 connectors. High-quality sources can also connect through the optical S/PDIF input, with signals distributed digitally through the AD Link system to other Thesis amplifiers. Each amplifier performs its own digital-to-analogue conversion using a high-end 24-bit / 192 kHz PCM converter.
The Power Stage
Like the HV Venti, the Thesis power stage uses advanced circuit design starting with the PCB layout. Power components are mounted on separate modules to better manage high current flow and minimize electromagnetic interference with the audio signal. This separation improves overall performance and signal integrity.
Indestructible Chassis
The Thesis construction reflects the HV Venti’s design approach, optimised for efficient heat dissipation; especially when in class A operation. The chassis is made from solid extruded aluminum and precision-machined using CNC technology. A black anodized finish enhances heat transfer through convection and radiation. Internally components and power modules are arranged vertically and mounted outside the main board. This allows for shorter, more efficient signal paths and larger PCB layouts; improving both power delivery and sound quality.
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