M 40 HV Mono Power Amplifier, Anniversary Edition
Best mono amplifier for audiophiles seeking studio-grade sonic precision.
Experience unparalleled audio performance with the T+A M 40 HV Mono Power Amplifier, an Anniversary Edition designed for the ultimate listening experience. This amplifier combines classic analog techniques, valve technology, and advanced High Voltage transistor design to deliver exceptional sonic accuracy, clarity, and power. It offers a dynamic and immersive soundstage, ensuring every musical nuance is heard. Ideal for demanding audiophiles, it seamlessly integrates with T+A's HV-series components, bringing studio-quality sound and remarkable musicality to your high-fidelity system.
$31425.00
Owner Satisfaction
4.8
/ 5
Category Rank
166
/ 1646
#166 in Power Amplifiers
Price vs Category Average
+281%
Above average
Amplifier Class
Class A (input stage)
/ Class A (input stage)
Who it's for
- Audiophiles seeking tube warmth paired with solid-state power
- Listeners driving demanding, low-efficiency high-end loudspeakers
- Collectors valuing limited-edition craftsmanship and premium build quality
Who should skip it
- Owners with limited rack space or restricted room layouts
- Budget-conscious buyers seeking high-end performance at accessible prices
- Users wanting a low-maintenance, cool-running audio system
Performance breakdown
Power Delivery
Massive 550-watt output drives even the most demanding speakers with ease.
Sonic Accuracy
Hybrid valve and transistor design captures every nuance of the recording.
Build Integrity
Heavyweight construction ensures absolute stability and long-term component reliability.
Signal Clarity
High-voltage circuitry maintains an incredibly low noise floor for pristine playback.
Soundstage Depth
Immersive imaging creates a wide, three-dimensional space for your music.
System Integration
Seamlessly pairs with HV-series components for a cohesive high-fidelity ecosystem.
Key Specs
Amplifier Class
Class A (input stage)
Valve Type
6SN7
Input Stage
Symmetrical differential amplifier with all-valve cascode circuit
Voltage Amplifier Stage
High Voltage (HV) J-FET amplifier circuit with triode performance characteristics
Current Amplifier Stages (Output)
Twenty high-performance ring emitter bi-polar transistors
Power output
550 watts into 8Ω (mono)
Frequency response
1Hz to 150kHz
Total harmonic distortion
0.009%
Features
- Pure sound reproduction engineered for audiophiles
- Combines analog, valve, and HV transistor technologies
- Harmonious sonic image from 6SN7 valves
- Agile performance with HV J-FET amplifier circuit
- Robust construction for lasting durability
- Dynamic and immersive listening experience
- Meticulous soundstaging for detailed audio
- Studio-quality audio reproduction at home
What customers say
The T+A M 40 HV Anniversary Edition is widely celebrated as an engineering masterpiece and a reference component in high-end audio. The core sentiment focuses on its exceptional sonic performance, successfully blending the musicality of tubes with the dynamic authority of solid state. Reviewers consistently highlight the expansive, holographic soundstage and effortless power, noting its ability to drive difficult speakers with composure. Build quality is deemed impeccable, reflecting heirloom craftsmanship. While the size and heat output are noted, these are considered minor trade-offs for the unparalleled fidelity achieved. This limited edition is viewed as a long-term investment in end-game audio excellence, setting a new benchmark for monoblock amplification.
Know before you buy
The M 40 HV utilizes a hybrid design that combines the classic warmth of 6SN7 valves in the input stage with a high-voltage J-FET transistor output. This approach provides the musicality and harmonic richness of tubes while maintaining the power and control of a high-performance solid-state amplifier.
The M 40 HV delivers a robust 550 watts into an 8-ohm load. This significant power output ensures it can drive even the most demanding, low-sensitivity loudspeakers with ease and authority.
While the M 40 HV features both XLR and RCA inputs for broad compatibility, it is specifically engineered to integrate seamlessly with T+A’s HV-series components. Using it within the HV ecosystem ensures the best possible signal path and sonic synergy.
Due to its substantial 52kg (114.64 lbs) weight and large dimensions, you must ensure your equipment rack or stand is rated to support heavy high-end audio components. We recommend a sturdy, stable surface to accommodate its size and mass.
The 6SN7 valves are used in a symmetrical differential circuit to provide a more natural, fluid, and harmonically rich sound. This design choice helps eliminate the clinical or sterile edge sometimes associated with high-power solid-state amplification.
Yes, with a frequency response extending from 1Hz to 150kHz and an exceptionally low total harmonic distortion of 0.009%, the M 40 HV is designed to resolve the finest details in high-resolution recordings. It is built to maintain signal integrity across a very wide bandwidth.
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