T+A
T+A R 2500 R Integrated Multi Source Receiver
T+A R 2500 R Integrated Multi Source Receiver
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The T+A True-1-Bit converter used in the R 2500 R is unique because it overcomes a long-standing principle: Ordinary converters convert DSD signals into PCM signals to process them afterward. The exclusive use of this conversion contradicts our belief and laid the foundation for the development of the True-1-Bit converter. It processes DSD files natively without harmful conversions and reproduces them absolutely unadulterated in the true 1-bit stream: Allowing for both convenient playback and high-quality reproduction with the revolutionary T+A Path Separation Technology.
On the PCM side, the T+A Quadruple converter operates, whose doubly symmetrical circuit with eight 32-bit BurrBrown converters compensates for sonic nonlinearities exceptionally well: the already
minimal noise decreases by an additional 6 dB. This effort results in astonishing linearity and dynamics with equally impressive distortion-free clarity.
Although we believe in pure music reproduction, it is important to us that customers can tailor T+A devices to their individual usage needs and listening tastes. That's why we developed 6 individual algorithms for our PCM quadruple converter that offer different oversampling characteristics. The polynomials used set different priorities for the conversion in the time domain or frequency response behaviour for each individual filter. The T+A True-1-Bit converter features two different converter modes for DSD playback.
In this way the T+A High-Frequency Sinusoidal Power Supply can provide large amounts of current inertialessly, even with suddenly occurring, strong musical impulses and therefore is the perfect high energy supply for the preamplifiers and power amplifiers of the R 2500 R which 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 two identical separate amplifier circuit boards – with input section, volume control, high-voltage amplifier and current amplifier, so that the sound quality of both channels is identical. 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 of more than 150 kHz. 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.
Specifications
High level input unbalanced (RCA)
High level input balanced (XLR)
Analogue pre-amplifier output (RCA)
500 mVeff … 8 Veff / 5 kOhm
nom 1 Veff, max 9,5 Veff / 47 Ohm
140 watts @ 8 ohms
1 x USB DAC: Device-Mode up to 768 kSps (PCM), DOP256 and DSD 512*, supports asynchronous data transfer. *DSD 512 only with Windows PC with appropriate driver or a Linux PC with kernel version 4.4 or higher.
2 x HDMI IN, 1 x HDMI OUT with ARC
per channel. 705,6 / 768 kSps conversion rate
DSD: T+A-True-1Bit DSD D/A-Converter, up to DSD 512 (22,4 / 24,5 MHz), native bitstream
PCM 48 kSps 2 Hz - 22 kHz DSD 64: 2 Hz - 44 kHz
PCM 96 kSps 2 Hz - 40 kHz DSD 128: 2 Hz - 60 kHz
PCM 192 kSps 2 Hz - 80 kHz DSD 256: 2 Hz - 80 kHz
PCM 384 kSps 2 Hz - 100 kHz DSD 512: 2 Hz - 100 kHz
PCM 768 kSps 2 Hz - 120 kHz
PCM 32 … 384 kHz, 16/24 Bit; MP3 bis 320 kBit
DSD64; DSD128; DSD256
2.412 – 2.472 GHz (2.4GHz ISM Band, 13 Channels)
Channel 1 – Channel 13
North America FCC, Japan MIC, Europe ETSI
20MHz bandwidth
5.180-5.825 GHz (5GHz UNII-1/2/3 Band, 24 Channels)
North America (IC and FCC):
5.180-5.600 GHz, 5.650-5.825 GHz
Europe, Japan (ETSI and MIC):
5.180-5.700 GHz
max gain in 2.4GHz band: 3.2dBi
max gain in 5 GHz band: 4.25dBi
up to 17dBm (at antenna terminal).
Max. transmission power <10 dBm (EIRP)
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Reviews
All Inclusive
Der T+A R 2500 R zeichnet einen riesigen Raum und verpasst keine noch so kleine Nuance. Dabei geht er so unaufdringlich wie selbstverständlich zu Werke, wie man es sich nur wünschen kann. Aufgrund seiner überragenden Technik und seines gediegenen Klangs hat sich der R 2500 R eine dicke Empfehlung für all diejenigen, die nach einer All-in-one-Lösung suchen, aber nicht auf höchstmögliche Qualität verzichten möchten, redlich verdient.
Final Thoughts On the T+A R 2500 R Multisource Receiver
I really enjoyed my time with this innovative device from a maker that I genuinely feel manufactures a wide range of high-quality products. Having so many options on how to play a song, watch a movie or any of the myriad things this device provides was infectious.
R 2500 R
In a changing network world, there’s an argument for not putting all your audio eggs in one basket, but T+A’s R 2500 R has both the futureproofing and performance to challenge and dispel such thinking. Superbly built, enerously equipped, technically and musically impressive, it will slot into even very high-end systems, drive just about any sensible speakers and deliver with minimum fuss. Ideal.
Herforder Thrills
Ganz gleich, worauf man es bei diesem Multi-Talent am meisten abgesehen hat - Streaming, TV-Ton, Analog- oder Digital-Audioquellen, CD oder Vinyl - der T+A R 2500 R erledigt den Job mit Bravour.
R 2500 R
To summarize, here is everything you can listen to using the R 2500 R: radio (FM, digital FM, internet-streaming), CDs (through the slot-loading built-in player), computer audio (through the built-in USB DAC), streaming services (via hard-wired Ethernet or Wi-Fi), TV sound (optical or HDMI-ARC digital through the DAC or through one of the three analog inputs), digital files from a thumb drive or hard drive (connected via USB), or vinyl (using an external preamp into one of the analog inputs or with the optional MM or MC phono preamp, not included in the review unit). You can use it as a computer "soundcard" via a USB connection and T+A's software driver (not necessary on Apple devices). Analog components like external phono preamps or tape machines can plug in balanced or single-ended. The R 2500 R is controlled (somewhat, with a lot of menu scrolling) by the front panel, or by its sturdy metal many-buttoned remote, or, perhaps optimally, via the T+A Navigator G3 phone/tablet app. With so many modes, sound sources, and options, the phone's touchscreen is the ideal user interface.
T+A R 2500 R
Met de T+A R 2500 R Multi Source Receiver levert het Duitse T+A een receiver waarin alle belangrijke technieken van de fabrikant samenkomen en zich elke dag van zijn allerbeste kant laat zien. Het uitrustingsniveau is hoog en de klank en imaging eigenschappen staan op een niveau dat ongekend is voor een all-in-one oplossing. De muziekbeleving is krachtig, precies en bovenal zeer verfijnd. Met de muziekbeleving die ik met deze T+A R2500 R ervaar plaatst deze alleskunner zich op een eenzame hoogte.
Wenn man bedenkt, was dieser Universalist "Made in Germany" in einem einzigen Gehäuse an Spitzentechnologie und Expertise beherbergt, Vollverstärker, Radio (UKW, DAB+ und Internetradio sowie Podcasts), CD, Streamer, DAC, HDMI-Hub usw., dazu die offenkundige Haltbarkeit, dann relativiert sich recht schnell sogar der fünfstellige Einstandspreis. Ein absolutes Traumgerät - Kompliment!
