T A PA 2000 R Integrated Amplifier (Silver)

T A PA 2000 R Integrated Amplifier (Silver) Key Features The T A PA 2000 R integrated amplifier in silver is a compact, high-performance integrated amplifier that brings together refined Class AB analog design, exceptional build quality, and advanced control features. It’s engineered for discerning listeners who demand both sonic precision and system versatility. Dynamic power output with high-current capabilityDelivers 2 × 100 W @ 8 ohms and 2 × 180 W @ 4 ohms, with effortless control of complex speaker loads thanks to a robust and linear output stage. Fully discrete Class AB amplifier designConstructed with cascoded J-FET differential input stages, no op-amps, and completely discrete analog signal paths for optimal clarity and dynamics. Dual-mono architecture for superior imagingLeft and right channels are physically and electrically isolated using identical boards and shielding, maintaining signal integrity across the spectrum. Precision analog volume controlRelay-switched resistor-ladder volume system ensures accurate channel balance and minimal signal degradation. Flexible input configurationEquipped with 4 RCA and 1 XLR input, plus optional MM/MC phono module for vinyl playback. All inputs use gold-contact relays for noise-free switching. Output options for system expansionIncludes pre-out for subwoofers or external amplifiers and a high-quality headphone output for personal listening. Advanced tone and loudness controlIndependent tone controls per channel with bypass option, and adjustable loudness compensation tailored to speaker efficiency. System integration readyFeatures trigger inputs/outputs and System Link for seamless operation with other T A R-series components. Robust construction and minimalist designMachined aluminum chassis offers full electromagnetic shielding and vibration resistance, wrapped in a clean, timeless aesthetic. With its compact footprint, sophisticated analog design, and powerful performance, the T A PA 2000 R is a true high-end integrated amplifier for refined stereo systems. The Integrated Amplifier Building neat, compact integrated amplifiers offering high output power and superb sound quality is an art at which T A has no peer. As proof of this claim we present the PA 2000 R integrated amplifier. It is incredibly dynamic, powerful and incisive. There are two reasons behind these characteristics: the extremely linear output stages with very low negative feedback, which are a completely new development, and the new form of mains power supply employed. We designed the latter specifically for audio devices, to ensure that they are ultra-stable under load, with no danger of collapse even when handling extremely high peak levels. The result is that the PA 2000 R can deliver a continuous power of more than 200 Watts per channel into 4 Ohms loudspeakers, enabling it to drive impedance-critical speakers whilst maintaining effortless control. Gas-tight gold-contact relays are employed to switch loudspeakers, inputs and internal signal circuits with total precision and zero losses. Separate tone controls are present for each channel, and they and the Loudness function can be by-passed completely. An optional audiophile phono pre-amplifier module for MM or MC can simply be plugged in. For operation in a surround system the amplifier can be set to Surround Pass Through mode, selected by a trigger signal.   Amplifier Technology R-series pre-amplifiers and power amplifiers are constructed in accordance with the double-mono principle. This means that we completely isolate the left and right channels from each other – even in mechanical terms – and use identical circuit boards, so that the sound quality of both channels is identical. The two separate amplifier circuit boards – with input section, volume control, high-voltage amplifier and current amplifier stage – are housed in the right-hand half of the case, where they are shielded from the mains power supply and the output section by the massive heat-sink. As with our HV-series machines, the circuit topology of the input stage is based on a cascoded differential amplifier with hand-selected audio J-FET transistors and stages of completely discrete construction, without operational amplifiers (op-amps). This overall circuit design, combined with the high quality of the components employed, virtually eliminates the need for overall negative feedback. The result is that the amplifier boasts excellent linearity combined with an extremely wide dynamic range. Signals up to 60 Vss can be processed without any hint of distortion. The volume control takes the form of discrete precision resistors and bi-stable gold-contact relays, resulting in absolutely exact channel matching combined with the shortest possible signal paths; this in turn virtually eliminates noise and distortion. The following voltage amplifier stage and current amplifier are completely isolated from each other galvanically. This uncompromising design completely avoids the danger of feedback effects from the loudspeaker currents into the voltage amplifier stages, and also precludes adverse effects from the loudspeaker load. The amplifiers are fitted with separate tone controls for each channel, and the function can be completely by-pased by means of gold-contact relays. A loundness circuit is present which can be adjusted to match the efficiency of the loudspeakers. Inputs In the R-series the volume control and input select functions are entrusted to sealed gas-tight gold-contact relays, which are not prey to contact problems caused by corrosion, dust or ageing effects even after many years of operation. Integrating the relays directly into the circuit allows the signal paths to be as short as possible, and the signals pass from the input sockets to the pre-ampli­fier circuit boards without crosstalk. As an option, input 4 can also be fitted with one of two high-quality phono pre-amplifier modules; they feature different circuit topologies optimised for MM or MC pickups.   Connections The construction, circuit layout, components and sub-assemblies of the two R-series integrated amplifiers are identical, but they differ in output power, connection facilities and case size. The input and output sections are equipped with professional sockets (XLR and RCA) made of non-magnetic materials, and all feature hard gold-plated contact surfaces. All sockets are screwed permanently to the solid aluminum back panel.