T+A PA 2500 R

Integrated Amplifier

Retail $15,000 CAD

Built-in MM phono stage +$1,200 CAD
Built-in MC phono stage +$1,200 CAD
Silver anodized or black anodized
Please contact us for information.

Overview

Twice as tall, higher output power and even more connection facilities – the PA 2500 R exceeds the specification of the PA 2000 R in many areas, but its character in terms of sound quality is in no way inferior to its smaller sibling. This by no means goes without saying, because very powerful amplifiers often forfeit the finer points of dynamics and detail tracery. Our PA 2500 R integrated amplifier circumvents this danger: its basic circuit is the same as that of the PA 2000 R, and even the circuit board layouts are identical. However, its heat-sinks are twice the size, and the case accommodates two of our new high-performance mains power supply units, with the result that it can deliver more than 260 Watts of continuous power per channel into 4 Ohms loudspeakers. The amplifier is therefore effortlessly capable of controlling speakers which are extremely critical in terms of phase and impedance.

The PA 2500 is even more powerful than the smaller machine, but retains exactly the same dynamism and cultured sound. The PA 2500 R is fitted with three professional symmetrical XLR inputs, of which one can be configured as Surround Pass Through, four high-quality Cinch inputs (RCA), symmetrical (XLR) and asymmetrical (RCA) pre-amplifier output sockets, and two pairs of loudspeaker outputs with heavy-duty terminals machined from ultra-pure non-magnetic brass with rhodium-plated contact surfaces. A headphone socket is present on the front panel.

Technology

The quality of any output stage is deter¬mined to a very great extent by the mains power supply as well as the circuit topology. Mains power supply units must be as stable and resilient as possible, to ensure that the voltage they generate does not collapse even when very high peaks are encountered. In conventional equipment this requires very large transformers, but the limited space available in the low-profile R-series machines spurred on our en¬gineers to develop an ingenious alternative solution: a regulated high-frequency sine-wave mains power supply with generous reservoir capacity, capable of delivering up to 1200 Watts without problem. The mains power supply can deliver very large quantities of current extremely quickly, even when the gradient of the peak signals is steep. Our experience in building amplifiers over a period of thirty years has taught us the importance of the quality of audiophile modules for the final outcome in terms of sound quality, and that is why we choose our components with great care and then select them according to strict criteria, to ensure optimum characteristics for each specific application.

We use low-loss mica capacitors with silver electrodes, zero-induction resistors, precision low-noise audio resistors, and nickel-free gold- or rhodium plated terminals specially manufactured for T+A. Many of these components were developed for military applications, and therefore fulfil exacting requirements in terms of quality and durability.

All the electronic circuitry for controlling the machines is recessed into the solid aluminum front profile, where the shielding effect is outstanding. The front panel features a bright, dimmable screen (VFD) and control knobs with variable lighting. Another in-house development for the latest R-series is a completely new and very fast data bus for data exchange between the devices, which makes it possible to control a whole system with a single remote control handset. Alternatively, if the system includes an MP 2000 R, the equipment can be controlled using the T+A App for iOS or Android. Both amplifiers are equipped with a sophisticated protective circuit which is situated outside the signal path, and therefore cannot possibly have any adverse effect on sound quality. The protective circuit constantly compares the input signal before the output stage with the output signal, and instantaneously switches off the output relays if it detects the slightest deviation (clipping, distortion, etc.). The protective circuit is also triggered if overheating occurs, or if a short-circuit is present at the outputs.

Colours and Phono stages

Silver anodized or black anodized

Built-in MM phono stage +$1,200 CAD
Built-in MC phono stage +$1,200 CAD

Pre-amplifier stage

Frequency response +0/−3dB0.5 Hz–300kHz
Signal to noise ratio, unweighted/A-weighted105/109dB
Total harmonic distortion/Intermodulation<0,001%/ <0,001%
Channel separation >90dB
LoudnessSwitchable, variable to suit loudspeaker efficiency
Tone controlsSwitchable, channel-separate
Bass −6 … +8dB
Treble −6 … +8dB

Nominal input sensitivity

High-level (RCA)4×250mV … 4 Veff/20 kOhms
Symmetrical (XLR)3×500mV … 8 Veff/5 kOhms
Phono MM (optional*)1–5mV, 16 Capacitances
Phono MC (optional*)60–1000µV, 16 Impedances
*Phono module replaces one high-level input

Outputs

Headphone50 Ohms
PRE out RCA and XLRNom 1Veff, Max 9,5Veff, 75Ohms and Nom 1,45Veff, Max 19,6Veff, 75Ohms

Output Stage

Nominal output per channel into 8 Ohms140 Watts
into 4 Ohms280 Watts
into 2 Ohms560 Watts
Frequency response + 0 / – 3 dB 1 Hz – 150 kHz
Slew rate60 V/µs
Damping factor> 65
Total harmonic distortion< 0,02 %
Reservoir capacity 120000 µF
Control interface R2-Link
Remote Control FM100
Mains connectionAutomatic mains voltage switching, 100–120V, 200–240V, 50–60Hz
Max. 2000 Watts
Standby< 0.5 W
Additional featuresTrigger input +5V … 20V via adapter plug for remote power-on Input 3 (symmetrical) or 5 (asymmetrical) can be configured as Surround Pass Through
Dimensions (H x W x D)16.5×46×40.5cm/6.5×18.1×15.8inch
Weight14.5kg/32lbs
FinishSilver anodized aluminium (43), black anodized aluminium (42), brushed

Fidelity Magazine

"It seems the PA 2500 R shares much of its DNA with its older HV siblings, playing with the same fluidity and lack of harshness. No matter what type of music was played, the delicate and broad overtone range was particularly appealing, giving every piece an ethereal quality in addition to an uncompromising foundation."


the ear

"In the PA 2500 R integrated amplifier and the G 2000 R record player T+A has created two components that combine solid build, flawless operation and exceptional sound quality. They made sure the amplifier is as flexible as possible, with the option to correct small, room acoustic related problems. The numerous inputs and the available output power make the amplifier a real all-rounder, one that proved capable with both large (costly) and small (more affordable) loudspeakers."


the absolute sound 9/2017

"The PA 2500 R delivered big, high-intensity wattage that never seemed to waver in responsiveness and extension regardless of the loads it faced…the PA 2500 R and MP 2000 R exceeded my expectations by a wide margin. Even though they can be purchased individually, I consider them an inseparable partnership, completing each other´s thoughts like identical twins would. In other words, wunderbar!"


Big and bold yet refined and nuanced at the same time. If you want to step up to the big leagues, this is it! The PA 2500 R integrated amplifier contains much of the technology of its bigger brother PA 3100 HV at half the price. Many amps do not double their power into a 4 ohm load, but this amp keeps doubling its power all the way down to a 2 ohm load due the employment of high quality power supplies. The PA 2500 R lets you hear the full capability of your speakers with power, poise and impeccable sonics.