T+A
T+A PA 3100 HV Integrated Amplifier
PA 3100 HV
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
The entire control electronics are deeply recessed and shielded in the 40 mm thick and fully milled front panel, on the front of which is the luminous and dimmable display (VFD) made of glass with wear-free sensor buttons.
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 ... 6 Veff / 20 kOhms
Nominal input sensitivity Balanced (XLR)
4 x 500 mVeff ... 12 Veff / 5 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
PS 3000 HV Power Supply |PH HV MM oder MC phono module |APM signal processor module |Power Three HD (Carbon) | Power Bar | Audio Quad (Carbon) |Speaker Hex (Carbon) HV-Individual finish (Individual colours on request)| IP control
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
Reviews
Audio 10/2021
Super player
For four years now, the multiplayer MP 3100 HV and the integrated amplifier PA 3100 HV have served as references in the audio listening room. In addition to their tonal merits, their reliability has kept them on the throne. A long-term test as a tribute.
Audio Test 2/2019
miracles of science
The PA 3100 HV is a definite statement when it comes to integrated amplifiers and you can hear that in every tone. Here, applied science produces tonal results that meet even the highest demands. The price point may be high, but anyone who is surprised should simply listen to the PA 3100 HV. We are sure that all questions will be answered automatically.
i-fidelity.net 6/2017
The PA 3100 HV plays absolutely confidently, completely balanced and with enormous sensitivity. Nevertheless, you can definitely recommend adding the PS 3000 HV with a clear conscience, because the PA 3100 HV is in a higher league with a power pack. Anyone who hears the duo will notice that the two belong together.
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.
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.
Fidelity 4/2017
Safe bank
If you want to upgrade your own stereo system, you play through all the variables of this complex equation again and again. If there is a T+A PA 3100 HV, there is one less unknown.
The same picture is always repeated with other loudspeakers and changing music: The PA 3100 HV always acts transparently, with phenomenal detail and yet fluently and without sharpness. None of the loudspeakers connected could teach him even a minimal change in this gait, the T+A makes it clear to every system who is the boss in the ring.
Read more ...
stereoplay 4/2017
Delicately with an iron fist
Without long ifs and buts, one of maybe the two or three best integrated amplifiers of all. The sound is absolutely sovereign, but also delicate and haunting. This actually impossible combination of PA 3100 HV and PS 3000 HV has its price - and it is worth it.
Audio 3/2017
Superpower
One of the best transistor amplifiers, quiet and loud almost unbeatable, even without an additional power supply. Below this level you don't want to tolerate any transistor amplifier anymore. A strong piece.
stereo 2/2017
Wedo not currently know of a better integrated amplifier. Even without an additional power supply. Those who can afford it should not hesitate. The excellent 1997 recording of the tribute to Ella Fitzgerald still had something new to offer after all these years. Thanks to the PA 3100 HV.
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 ... 6 Veff / 20 kOhms
Nominal input sensitivity Balanced (XLR)
4 x 500 mVeff ... 12 Veff / 5 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
PS 3000 HV Power Supply |PH HV MM oder MC phono module |APM signal processor module |Power Three HD (Carbon) | Power Bar | Audio Quad (Carbon) |Speaker Hex (Carbon) HV-Individual finish (Individual colours on request)| IP control
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
