T+A A 3100 HV Reference Stereo Power Amplifier

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The A 3100 HV is not merely a power amplifier. It is an instrument of uncompromising physics, designed with a single purpose: absolute transparency. Engineered to operate in perfect synchronicity with reference pre-amplifiers, it defines the ultimate boundary of what is electronically possible, solely to preserve the fragile, emotional content of the recording.


Sale price$39,999.00
Colour: Silver

Key features

Made in Germany

Frequency response + 0 / − 3 dB: 0,5 Hz – 180 kHz

Signal to noise ratio: 115 dB

Weight 38 kg

Silver & Titanium

T+A A 3100 HV Reference Stereo Power Amplifier

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T+A A 3100 HV Reference Stereo Power Amplifier

The A 3100 HV is not merely a power amplifier. It is an instrument of uncompromising physics, designed with a single purpose: absolute transparency. Engineered to operate in perfect synchronicity with reference pre-amplifiers, it defines the ultimate boundary of what is electronically possible, solely to preserve the fragile, emotional content of the recording.

It has not been built as an integrated compromise. Instead, deliberately separated power and pre-amplification components remove all physical and thermal restrictions on each unit: A pre-amplifier demands a sanctuary from interference to protect the most fragile, microscopic audio signals, whilst a power amplifier demands an unyielding foundation to deliver massive, instantaneous power. These are fundamentally different disciplines. The A 3100 HV uses its heritage to master the latter.

Leveraging the immense wealth of experience gained during the popular A 3000 HV’s ten-year production run, we refined the internal architecture to its absolute peak, integrated next-generation components, optimized PCB routing down to the millimeter, and took complete mastery over the thermal equilibrium of the chassis.

The result is our proprietary HV technology, which has been taken to a new level through more than 270 targeted optimizations. When configured as a mono power amplifier, its current delivery capability doubles. As a stereo power amplifier, it offers unwavering stability for deep sonic fidelity. Like its predecessor, the A 3000 HV, the A 3100 HV features High Voltage Mode, which delivers more than 1,000 watts of rated power. This enormous power can be further stabilized, if needed, by the PS 3100 HV high-voltage power supply and is intended for applications where maximum output power and dynamic headroom are paramount.

However, we have equipped the new A 3100 HV with another audiophile feature: High Current Mode. This mode is not about maximum power, but rather about perfected sound performance. The operating voltage and output power are significantly lower; however, High Current Mode allows the power amplifier to operate within the true Class A range in both mono and stereo modes. In this operating mode, an increased quiescent current is maintained continuously, which is essential for eliminating microscopic transient delays -and translates the subtle nuances of a recording into a lightning-fast, deeply natural listening experience. Due to its design, the PS 3100 HV cannot be used in High Current Mode.

T+A A 3100 HV Reference Stereo Power Amplifier

High Current Mode with True Class A Performance

The A 3100 HV introduces an advanced High Current Mode that allows the amplifier to operate in the true Class A range for the most natural and transparent sound reproduction. By maintaining continuously energized output transistors, it eliminates microscopic transient delays and crossover distortion. The result is lightning-fast response, richer tonal accuracy, smoother dynamics, and a more lifelike musical presentation that captures every subtle nuance of the original recording.

T+A A 3100 HV Reference Stereo Power Amplifier

Massive Power with Exceptional Speaker Control

For demanding loudspeakers and high-volume listening, the amplifier switches to High Power Mode, delivering up to 500 Watts per channel into 4 Ohms in stereo operation and even greater capability when configured as a mono amplifier. This enormous power reserve ensures effortless dynamics, outstanding bass authority, and complete control over difficult speaker loads without compression or distortion, even during the most demanding musical passages.

T+A A 3100 HV Reference Stereo Power Amplifier

Advanced HV Technology & Over 270 Engineering Improvements

Building on the success of its predecessor, the A 3100 HV incorporates more than 270 carefully engineered enhancements throughout its circuitry, PCB layout, thermal management, and component selection. The refined High Voltage architecture provides exceptional linearity, ultra-low distortion, improved stability, and outstanding signal purity. These continuous refinements result in a quieter background, greater resolution, and a remarkably transparent listening experience.

T+A A 3100 HV Reference Stereo Power Amplifier

Iso-Thermal Dual-Mono Design for Consistent Performance

The amplifier's innovative Iso-Thermal Geometry and fully isolated dual-mono construction maintain optimal operating temperatures regardless of listening duration or workload. Precision thermal-tracking circuitry continuously stabilizes the output stage, preventing thermal drift that can reduce clarity and imaging. This ensures the amplifier delivers identical performance from the first minute of playback to extended listening sessions with exceptional consistency.

T+A A 3100 HV Reference Stereo Power Amplifier

Premium Internal Construction for Maximum Signal Integrity

Every section of the A 3100 HV is physically separated to minimize electrical interference and preserve signal purity. Independent voltage and current amplification stages, galvanic isolation, symmetrical PCB routing, advanced MOSFET drivers, and rhodium-plated solid brass speaker terminals work together to reduce noise, eliminate electromagnetic interference, and maximize power transfer. The result is an incredibly silent background, precise imaging, and exceptional musical detail.

T+A A 3100 HV Reference Stereo Power Amplifier

Reference-Grade Power Supply for Instantaneous Dynamics

At the heart of the amplifier is a heavily shielded 1,000-Watt toroidal transformer supported by twelve oversized low-ESR capacitor banks providing 120,000 μF of power supply filtering. This sophisticated power supply delivers instantaneous current with remarkable stability, ensuring explosive dynamics, tight bass control, and unwavering performance during complex musical peaks. The amplifier also supports the optional external PS 3100 HV power supply for even greater power delivery and dynamic headroom in demanding systems.

T+A A 3100 HV Reference Stereo Power Amplifier

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