PA 3100 HV Integrated amplifier

PA 3100 HV
Integrated Amplifier

The Integrated Amplifier

The PA 3100 HV is a further development of the PA 3000 HV, and most of its sub-assemblies are identical. The immediately obvious difference is the pair of VU meters in the front panel, which display the power generated per channel in logarithmic form in Watts into 4 Ohms. A revision of the pre-amplifier section (D.C. coupling) has brought an additional improvement in sound quality.
A further development is the redesigned analogue mains section and voltage power supply, which is similar to that of the A 3000 HV. This makes it possible to connect the supplementary PS 3000 HV mains section in order to gain a further increase in stability and performance of the power supply system as a whole. The additional unit provides an extra 1800 Watt of supply power, enabling the system to control even the most difficult loudspeakers without effort, so that they can unfold the best possible sound quality.

As an option the PA 3000 HV and PA 3100 HV can also be fitted with High-End phono pre-amplifier modules which feature different circuit topologies to suit MM or MC systems. It is also possible to install the analogue signal processor module which has been developed for the P 3000 HV to provide channel-separate tone and loudness functions.
The all-metal F3001 infra-red remote control handset is supplied as standard.

Circuit Topology

As with the P 3000 HV, the circuit topology is based on a differential cascode amplifier with individually selected audio J-FET transistors, and stages of completely discrete construction without op-amps (operational amplifiers). Virtually no overall negative feedback is required due to this circuit arrangement and the quality of the components employed. The high operating voltage of HV technology is the key to excellent linearity combined with extremely wide dynamic range: signals up to 60 Vss can be processed without distortion.
In the HV series the signal switching and adjusting functions are carried out by encapsulated gas-tight gold-contact relays, which are totally immune to contact problems due to corrosion, dust, etc., and do not suffer from ageing effects even after many years of operation. The pre-amplifier even employs bi-stable relays, which require no permanent coil current, and this in turn eliminates any adverse inductive effect on the audio signals.
The direct integration of the relays into the circuit minimises the signal paths, and connecting cables - as required for conventional volume potentiometers - are no longer necessary. The volume control is assembled from discrete precision resistors and gold-contact relays. The result is totally precise channel matching, devoid of distortion and hiss.

Control Circuitry

Specifications

Pre-amplifier stage

Frequency response + 0 / – 3 dB

0,5 Hz –300 kHz

Signal / noise ratio

105 / 110 dB

Total harmonic distortion

< 0,001%

Intermodulation

< 0,001 %

Channel separation

> 90 dB

Nominal input sensitivity High level (RCA)

7 x 250 mVeff ... 3 Veff / 20 kOhms

Nominal input sensitivity Balanced (XLR)

4 x 500 mVeff ... 6 Veff / 20 kOhms

Outputs

Headphones

50 Ohms

1 x Recorder

250 mVeff / 100 Ohms

PRE out RCA

nom 1 Veff, max 9,5 Veff / 50 Ohms

PRE out XLR

nom 1,45 Veff, max 19,6 Veff / 50 Ohms

Output stage

RMS output per channel into 8 Ohms

300 Watts

RMS output per channel into 4 Ohms

500 Watts

Peak output into 8 Ohms

380 Watts

Peak output into 4 Ohms

700 Watts

Power bandwith

1 Hz – 150 kHz

Frequency response + 0 / – 3 dB

0,5 Hz – 180 kHz

Slew rate

60 V/µs

Damping factor

> 65

Signal / noise ratio

> 115 dB

Total harmonic distortion

< 0,03 %

Reservoir capacity

120000 µF

Mains / Accessories / Dimensions

Mains

110 V/60 Hz or 220/240 V/50 Hz

Standby

< 0,5 W

Remote control

F 3001

Features

Trigger input +5 ... 20V for external switching-on
Input 4 can be configured in surround mode
(Surround pass-through)
connectivity for additional PS 3000 HV
LAN connector for home-automation systems

Optional Accessories

Dimensions (H x W x D)

17 x 46 x 46 cm

Weight

38 kg

Finishes

Case: silver laquer 47 or titanium laquer 64
Heat sink: black 42

Technical modifications reserved

Support

Catalogue

Catalogue HV-Series

English

German

User manual

User manual PA 3100 HV

English

Polish

German

User manual phono amplifier

English

German

HVEQ Software for room calibration

User manual HVEQ

English

German

Equalizer Measurement Sheet

Software HVEQ

Audio Test Signals

Firmware / Driver

Versions info

Version

Reviews

Future Audiophile 4/2025

PA 3100 HV Integrated Amplifier

The T+A PA 3100 HV integrated amplifier is a giant killer. When compared to some of the world’s best audiophile components, very often costing upwards of two or three times as much, this integrated amplifier consistently performs beyond expectations, and has even been described as “virtually indistinguishable” from several of its much more expensive counterparts.

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Steve Huff Hifi 1/2025

T+A PA 3100 HV - Worlds Best

The T+A PA 3100 HV Integrated Amplifier just may be Your Last.

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Audio 10/2021

Super-Player
Seit nunmehr vier Jahren amtieren der Multiplayer MP 3100 HV und der Vollverstärker PA 3100 HV als Referenzen im Audio-Hörraum. Neben ihren klanglichen Meriten hat ihre Zuverlässigkeit sie auf dem Thron gehalten. Ein Langzeittest als Hommage.

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Audio Test 2/2019

Wunder der Wissenschaft

Der PA 3100 HV ist ein definitives Statement in Sachen Vollverstärker und das hört man in jedem Ton. Hier produziert angewandte Wissenschaft klangliche Resultate, die auch höchsten Ansprüchen genügen. Der Preispunkt mag hoch liegen, aber wer sich darüber wundert, sollte den PA 3100 HV einfach mal Probe hören. Wir sind uns sicher, dass so alle Fragen ganz von selbst beantwortet werden.

i-fidelity.net 6/2017

Der PA 3100 HV spielt absolut souverän, völlig ausgewogen und mit enormem Feingeist. Dennoch kann man seine Ergänzung durch das PS 3000 HV ruhigen Gewissens nachdrücklich empfehlen, denn mit Netzteil spielt der PA 3100 HV noch eine Liga höher. Wer das Duo hört, wird merken, die zwei gehören zusammen.

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Stereo Magazine 10

In stereo‘s top echelons it’s not all pre/power amps – there are
some integrated amps up there, too. T + A’s brand new PA 3100 HV aiming at top honors – and it has a secret weapon in the form of a powerful auxiliary power supply.
Those who can afford it should not hesitate. Currently, we do not know a better amplifier – even without the additional power supply.

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Hifi News 5/2017

The PA 3100 HV, despite its size, is the antithesis of a big bruiser amplifier. More BMW than Porsche, it delivers a refined confident listening experience with excellent weight, poise and speaker-driving ability. The improvements brougth by adding the power supply PS 3000 HV are noticable enough - the sound becomes even more surefooted - but justifying the extra outlay will be a matter of personal preference.