Introduced as a special product to commemorate their 40^th anniversary, T+A have introduced a rather spectacular flagship monoblock amplifier.

The amplifier is a high-powered hybrid design with 6SN7 tubes in the input/gain stage, which is designed as a symmetrical differential amplifier with an all-valve cascode circuit and is completely isolated from the power section, and an output stage using high-voltage Class A J-FET circuitry. Though the M 40 HV delivers 1000W into 4 ohms and its transformers provide a total capacity of more than 180,000 microfarads, it is reported to offer such high levels of linearity and bandwidth that it eschews the use of negative feedback. In high current mode, the amps can deliver up to 60W of pure Class A power and up to 250W Class AB. Some notable features on the amp’s stately appearance: The solid aluminium heatsinks are integrated onto either side of the M 40’s overall vertical chassis, and at the top, the pair of tubes are housed within elegantly machined, space-age-looking protective “cages.”

The SD3100 HV is a purist converter/streamer which in an HV system acts as ultra-high quality player and converter for every imaginable digital source. It can be connected to the P3000 HV pre-amplifier or the PA3100 HV integrated amplifier via one of its analogue outputs. If you wish to play CD or SACD, the PDT 3100 HV reference disc mechanism can be connected to the SD3100 HV.

The SD3100 HV – and also a full HV system – can be controlled using the 
F3100 remote control handset or one of the T+A apps.

Since more and more audiophile music enthusiasts use high-quality headphones, T+A have developed a particularly good, high-performance analogue headphone amplifier which also exploits HV technology; it works completely in Class A mode, and offers outstanding sound quality. The connection sockets for 6.3 mm jack plugs and high-quality, quadrupole-symmetrical pentaconn plugs are located on the front. Like all T+A HV devices the SD 3100 HV is built of pure aluminium, without any ferro-magnetic materials at all, and features five compartments separated by aluminium dividing walls. These sections house the motherboard with digital inputs, the D/A converters with analogue output stage, the analogue mains section, the digital mains section and – in the massive front panel – the control section with its bright display and sensor buttons.

In the SDV3100 HV T+A have now created a digital/analogue converter which is even more complex and sophisticated than their previous converters, allowing them to double previous resolution levels: 32-bit/768 kHz for PCM and DSD1024 for bitstream data. This improvement required us to carry out meticulous refinement work on the previous converters, and at the same time develop a completely new USB receiver for these high frequencies.

The SDV3100 HV and SD3100 HV are identical in their mechanical and electronic construction except for the pre-amplifier section, which is additionally equipped with the SDV3100 HV.
The SDV3100 HV – and also a full HV system – can be controlled using the F 3100 remote control handset or one of the T+A apps.

The PDT3100 HV is a purist CD/SACD mechanism which does not feature supplementary integral digital sources or converters. It has been developed uniquely and exclusively for the uncompromising task of reading SACD and CD and is fitted with a new decoder/drive mechanism which T+A have developed from the ground up. This mechanism reads and decodes CD and SACD without error and to the very highest standards of quality. The mechanism is integrated into a heavy drive unit manufactured to rigidly high standards, designed to shield and isolate it completely. The mechanical system is extremely refined.

The core of the PDT 3100 HV is the new, modern decoder/disc mechanism, which T+A have developed specifically for audio applications. It features the latest processors, lasers, high-performance motors and other components, all designed to provide the optimum conditions for perfect, error-free disc reading characteristics. This unit is fully shielded and housed in a very substantial aluminium case machined from solid aluminium, designed to prevent any form of interaction between the moving parts of the mechanism and the remainder of the player. This entire disc mechanism block is mounted on just two close-tolerance linear bearings, which in turn are suspended from a thick carrier plate; the latter is fixed to the central case plate at only three points. This design ensures that the whole mechanism is completely isolated from the heavy external housing.