T+A Sources

PDT 3100 HV

The ultimate disc transport.

The PDT 3100 HV is a purist CD/SACD transport — no internal DAC, no streaming, just the finest possible disc readout. T+A designed and built the entire mechanism in-house: a high-precision linear-tracking drive with dual lasers (650 nm for SACD, 785 nm for CD), mounted on two linear bearings and suspended from a carrier plate machined from a single 25 mm aluminium block. The heavy, shielded mass-damping housing with three-point anti-resonance suspension isolates the mechanism from the outside world. Digital output via AES-EBU or the proprietary IPA link feeds the SD, SDV, or PSD 3100 HV for conversion.

At a Glance

●Pure SACD/CD transport (no DAC)

●In-house linear-tracking mechanism

●Dual-laser system (SACD + CD)

●25 mm solid aluminium carrier block

●3-point anti-resonance suspension

●AES-EBU & IPA digital outputs

●29 kg, pure aluminium chassis

●Made in Herford, Germany

Key Features

In-House Linear-Tracking Drive

T+A designed the entire disc mechanism from scratch — precision linear bearings, synchronised motor, and custom decoder circuitry for the lowest possible read errors.

Dual-Laser SACD/CD System

Separate 650 nm and 785 nm GaAlAs lasers optimised for SACD and CD respectively — no compromise optics, each laser purpose-built for its format.

Mass-Damped Aluminium Housing

The mechanism sits in a heavy, shielded enclosure machined from solid aluminium with three-point anti-resonance suspension — 29 kg of vibration-free precision.

AES-EBU & IPA Digital Output

Bit-perfect digital output via AES-EBU (up to 192 kHz/24-bit) and T+A's proprietary IPA link for native SACD data transmission to HV-series DACs.

Technologies Inside

High Voltage Technology

Tube linearity. Transistor power.

T+A's HV amplifiers operate at dramatically higher voltages than conventional designs — up to 100V in preamplifiers and 360V in power amplifiers. This forces the audio signal to exercise less than 20% of each transistor's operating curve, staying in the most linear region. The result is tube-like linearity and naturalness with transistor power, bandwidth, and reliability — virtually no negative feedback required. Built entirely from discrete components with individually selected audio J-FET transistors, encapsulated gold-contact relays, and precision discrete resistor volume control.

Most solid-state amplifiers operate their transistors across a wide portion of their transfer characteristic, which introduces non-linearity that must be corrected with large amounts of negative feedback — a technique that reduces distortion on paper but can compress dynamics and add its own sonic signature. T+A's approach is fundamentally different: by raising the supply voltage to 360V in power amplifiers (compared to the typical 60–80V), the music signal uses only the most linear 20% of each transistor's operating curve — the region where a transistor behaves almost identically to a vacuum tube. This means negative feedback can be reduced to near-zero levels, preserving the signal's original dynamics, micro-detail, and spatial information. Every HV circuit is built from discrete components rather than integrated circuits: individually selected and matched audio-grade J-FET transistors, hermetically sealed gold-contact relays for signal switching, and a precision discrete resistor ladder for volume control that maintains perfect channel balance and signal purity at every level.

HV Series Sources

The absolute reference in digital playback.

The HV source components house their electronics in pure aluminium chassis with five shielded compartments — no ferromagnetic materials, no operational amplifiers, fully discrete double-mono construction throughout. The SD 3100 HV, SDV 3100 HV, and PSD 3100 HV share the same Double-Differential-Quadruple-Converter (DSD1024 / PCM 768 kHz) with Class A HV-technology headphone amplification. The PDT 3100 HV provides a purist SACD/CD transport with custom linear-tracking mechanism, while the MP 3100 HV G3 integrates everything — disc, streaming, and conversion — in a single reference chassis.

Gallery

A closer look at the PDT 3100 HV.

Experience the PDT 3100 HV

Visit our showroom for a personal demonstration. Hear the difference for yourself.

Book a Demo Visit T+A

For complete specifications and technical details, visit the official T+A website.