T+A M 40 HV Mono Power Amplifiers
Pairs valves on the inputs with high voltage transistor outputs, delivering 1,000 watts of natural power to control any speaker with effortless authority.
The M 40 HV provides our HV-series High-Res players and pre-amplifiers with an extremely unique, uncompromising power amplifier which satisfies the most extreme audiophile demands under a vast range of operating conditions. Of course, it can also be used to form the perfect power amplifier for any other High-End set of equipment. One thing we have learned in our forty-year history is that the world of electro-acoustics does not permit a single perfect solution to all requirements; instead every overall design philosophy offers its own strengths and weaknesses. And that is why we have consistently developed optimum solutions for each requirement, whether it is based on valve technology or the very latest form of digital signal processing.
The M 40 HV combines our experience in the various areas of High-End audio technology: audiophile valve construction for the input stages, High Voltage technology for the transistor stages, intelligent thermal processor control for the output stages together with our usual uncompromising case design and construction.
Valve Technology
To achieve all this we have equipped our finest power amplifier with a circuit design which is unique in the world, combining classic analogue techniques, valve technology, High Voltage amplifier design and intelligent parameter control. The entire input amplification section is based on carefully selected High-End valves of the 6SN7 type, operating in Class-A mode. This results in a very harmonious sonic image, and instils the musical and tonal advantages of valve technology in the sound character of the M 40 HV.
Amplifier Concept
The input stage is designed as a symmetrical differential amplifier exploiting an all-valve cascode circuit. The subsequent voltage amplifier stage is a High Voltage (HV) J-FET amplifier circuit with triode performance characteristics, which also operates in pure Class-A mode. The result is excellent bandwidth and an agile performance which defines the sound qualities of the amplifier as a whole.
At the input side the current amplifier stages are based on MOSFET driver transistors whose performance curve harmonises superbly with the HV voltage amplifier stage. At the output side the current amplifiers are equipped with no fewer than twenty extremely high-performance ring emitter bi-polar transistors. These components satisfy the most extreme demands in terms of current supply capacity and bandwidth.
Specifications
| Mono Power Amplifier | |
| High Power Mode | |
| Nominal Power Into 8 Ohms | 550 Watts |
| Nominal Power Into 4 Ohms | 1000 Watts |
| Peak Power Into 8 Ohms | 570 Watts |
| Peak Power Into 4 Ohms | 1070 Watts |
| Power | up to 60 Watts pure Class A, up to 250 Watts Class AB |
| Frequency Response + 0 / – 3 dB | 1 Hz – 150 kHz |
| Slew Rate | 65 V/μs |
| Damping Factor | > 115 |
| Signal / Noise Ratio | > 114 dB |
| Distortion (5W, 4 Ohms, 1 kHz) | < 0,009 % |
| Inputs | unbalanced (RCA), balanced XLR 3 pin and XLR 4 pin |
| PWR Supply Capacity | 180000 μF |
| Mains / Accessories / Dimensions | |
| Mains | 110-150 V/60 Hz or 220-230 V/50 Hz / 1500 W 2500 Watts |
| Standby | < 0,5 W |
| Features | Trigger input +5 … 20V for external switching-on |
| Optional Accessories | Power Three HD (Carbon) | Power Bar | Audio Quad (Carbon) | Audio Triax (Carbon) | Speaker Hex (Carbon)| IP control |
| Dimensions (H x W x D) | 56 x 36 x 47 cm |
| Weight | 52 kg |
| Finishes | Case: silver laquer 47 or titanium laquer 64, heat sink: black 42 |
Related Products
From $6,495
A 200 combines maximum power using PURIFI Eigentakt™ output stages with trickle-down HV Series circuitry for audiophile sound in terms of subtle detail, resolution and fine dynamics.
From $2,480
Delivering an unrivaled auditory experience, the Eversolo AMP-F10 is not just an amplifier, but the dream choice for your audio systems.
From $19,500
Swiss-engineered with six hand-matched MOSFETs per channel, this powerful stereo amplifier gives music a physical presence with breathtaking dynamics.
Visit us for a listening session and free consultation
You are cordially invited to experience Bliss. We are located in Minnetonka, MN on the Deephaven border. We accommodate visits by appointment only and give you our complete attention when you are here. You should expect to have the opportunity to listen to a reference-level system and being engaged in discussion so we learn how to best help guide you further along your journey.
Hours: By appointment only
Call: 612-234-5850