Audio Analogue Donizetti Anniversary 250W Zero Feedback Amplifier

Audio Analogue Donizetti Power Amplifier Delivers Pure Power and Precision

The Audio Analogue Donizetti Anniversary Power Amplifier, crafted by Airtech Laboratories, is a high-powered, dual-mono stereo amplifier engineered to set new standards in audio amplification. With an impressive 250W output on an 8Ω load, doubling effortlessly with halved impedance, the Donizetti is designed to drive any speaker configuration flawlessly. This amplifier embodies the Audio Analogue’s commitment to absolute sonic clarity, advanced circuitry, and precision.

Donizetti Power Amplifier Uses Dual-Mono Design for Isolated Signal Control

The Donizetti Anniversary’s dual-mono configuration is built from the ground up for superior sound isolation and power management. Each channel is driven by a robust 1200 VA toroidal transformer, custom-designed with minimal flux leakage, ensuring that the power supply remains stable without interrupting sound quality. This separation ensures that channel interference is virtually eliminated, enabling purer stereo imaging and a more dynamic soundstage.

The SeGeSTA configuration (Single Gain Stage Transconductance Amplifier) in the Donizetti is a hallmark of Airtech innovation, with a design that utilises four transistors to deliver a seamless electrical flow, preserving the integrity of the gain stage and enhancing the natural tonality of audio across all frequencies. This unique single-gain-stage architecture optimises the signal path, producing transparent audio reproduction without the need for global feedback.

Advanced Circuitry Design for Uninterrupted Signal Purity

The Donizetti Anniversary employs a four-layer printed circuit board (PCB) meticulously arranged to prevent signal crossovers. With carefully considered positioning, the input and output signals remain isolated, and the amplification stages are situated well away from power transformers, significantly reducing potential interference and enhancing signal purity.

Constructed with only the finest components, this amplifier includes military-grade resistors, Airtech-specified plastic capacitors, and 7N OCC pure copper wiring for internal connections. These premium materials not only deliver long-lasting durability but also contribute to exceptionally low thermal distortion. The gold-plated pure copper output connectors ensure reliable, high-quality signal transfer, maintaining the amplifier's overall performance even with intensive use.

Bridgeable Mono Configuration Unlocks High Output Power

For those demanding even higher performance, the Donizetti Anniversary amplifier can be used in mono bridge mode, yielding an extraordinary power output of over 1000W at 8Ω. This flexibility makes the Donizetti an excellent choice for high-end audio systems where intense power and control are essential.

Audio Analogue Donizetti Technical Performance at a Glance

The zero-feedback circuit design, fully balanced dual-mono stages, and discrete component configuration of the Donizetti result in minimal interference and high-fidelity audio. With a power stage featuring twelve bipolar transistors per channel and a filter capacity of 56000µF per channel, the amplifier delivers consistently high performance, even at elevated volume levels. The oversized resistors mitigate thermal distortion, preserving clarity across dynamic ranges.

Key Specifications

• Output Power (8Ω): 250W stereo; 1000W in mono bridge
• Output Power (4Ω): 500W stereo; 1700W in mono bridge
• Output Power (2Ω): 950W stereo; 2200W in mono bridge
• Power Stage Gain: 26dB
• Input Sensitivity: 2.3Vrms
• Frequency Response: 110kHz, supporting a wide audio range
• Signal-to-Noise Ratio (SNR): >110dB, minimising background noise
• Input Noise (0Hz-80kHz, A-weighted): ~4µV, for clean, quiet performance
• Standby Power Consumption: <1W (230VAC)

The Audio Analogue Donizetti is available in an elegant natural aluminium or a sophisticated satin black finish, with a rugged build and a total weight of 41.2 kg, ensuring solid grounding for vibration-free audio reproduction.

Compact Dimensions with High-End Audiophile Capabilities

Measuring 221 x 450 x 428 mm (HxWxD), the Donizetti packs significant power into a refined chassis designed to fit into premium home audio systems. With its commitment to sonic accuracy, structural integrity, and Italian craftsmanship, the Donizetti amplifier embodies Audio Analogue’s dedication to offering enthusiasts an uncompromising, pure sound experience.