Symphonia

Symphonia
Streaming Integrated Amplifier

The Symphonia

With this streaming amplifier, we pay homage to nearly 50 years of Engineering Emotion. Breathing life into the claim “The Future of Retro” this device is both a bold look to the future of audio as well as a nod to the generations of T+A engineers, designers and craftspeople past and present whose ideas and hands have helped shape some of the most iconic devices, be it in terms of technology, looks or aesthetics.

Merging our very latest in streaming technology, digital to analogue conversion and amplification with an industrial design that celebrates our most beloved past products, from phased front panels to hand assembled VU-metres, the Symphonia is retro in the very best sense of the term: grounded in the past without just rehashing it yet also embracing the future without forgetting its roots. It combines the past and modernity on the quest to be a sonic companion for eternity.

Concept

Like every T+A product, the Symphonia was crafted with a bold vision: to deliver a universally capable "one-box system" that redefines what's possible. With an extensive array of sources, it offers near-limitless playback options. Its advanced DSD and PCM converters transform digital signals into rich, analogue soundscapes of breathtaking quality, while the built-in amplifiers - boasting 250 watts of power - bring this sound to life with remarkable clarity and depth.
At the heart of the Symphonia lies the third generation of our Audiophile Streaming Architecture (ASA G3). This cutting-edge combination of hard- and software ensures effortless access to streaming services, USB sources, and a seamless, intuitive experience with Connect Services, allowing you to play music directly from some of your favourite mobile apps.

Design

Measuring 10 x 38 x 34 cm (H x W x D), the Symphonia is more than a product; it’s a celebration of nearly fifty years of T+A design tradition. Its proportions pay homage to our first preamplifiers from 1985, while its control elements and VU meters evoke the innovative spirit of our modern Series 200. The beveled edges of the front panel nod to the timeless elegance of our iconic R Series, carefully refined since the 1990s.
Few buttons, thoughtfully placed, grace its extended front panel, and rotary push controls offer swift, intuitive access to every function and setting.
From the first stroke on an empty piece of paper, to it’s hardware design all the way to hundreds of thousands of lines of software code, the Symphonia was designed not just to keep pace with the digital age but to elevate the opportunities it brings.

Streaming & Converter

Our Audiophile Streaming Architecture (ASA) G3 transforms the Symphonia into a true citizen of the Internet of Things, all without sacrificing a single note of sound quality or the versatility of its sources. From the very beginning, the ASA G3 was built with a crystal-clear mission: to unlock the full potential of sound while offering unparalleled choice of sources.
At its core are powerful network boards that process incoming signals via Wi-Fi, LAN, and USB Master Mode. This enables the Symphonia to access not only on device streaming services like Deezer, Qobuz, and Tidal but also high-resolution local network files up to 384/32 (HD) as well as native DSD 256. Streams from mobile devices, whether through Connect or AirPlay (under certification), are delivered with the highest possible fidelity.
Adding to this symphony of features is the ability to play uncompressed FLAC files via aptX HD Bluetooth technology - a blend of convenience and sound fidelity that embodies the best of both worlds.
Nowhere is this blend of comfort and quality more evident than in the intricate handling of DSD playback. The ASA G3 is capable of streaming DSD files natively from the network. These streams are delivered directly to our groundbreaking True-1Bit Converter, where they are processed as a native bitstream without the otherwise typical - and often detrimental - conversion steps.

The converter architecture built into the Symphonia, featuring both a dedicated PCM and a dedicated DSD converter, is truly groundbreaking because it challenges - and surpasses - a long-held norm with superior sound quality. Conventional converters process DSD signals by converting them into PCM, an approach we fundamentally reject. This harmful conversion defies our philosophy and inspired the development of the True-1-Bit Converter, which processes DSD files natively, with no conversions, delivering data in its purest form: an unadulterated 1-bit stream. Seamless playback and the highest-quality reproduction come together in perfect harmony, thanks to the revolutionary T+A Path Separation Technology.
On the PCM side, the Symphonia employs a derivative of the T+A Double Differential Converter, whose circuitry compensates for tonal nonlinearities with exceptional precision. The outcome is astonishing: breathtaking linearity and dynamic range, paired with virtually zero harmonic distortion, exemplify the meticulous engineering behind this achievement.
While we believe in delivering unaltered music reproduction, we also understand the importance of tailoring our devices to the unique preferences and needs of each listener. That’s why the Symphonia provides custom algorithms for its PCM Double Differential Converter, allowing users to fine-tune the sound to their individual taste, making every listening experience as personal as it is soncially perfect.

Power Supply

Despite their efficiency advantages, conventional switch-mode power supplies come with a significant drawback: disruptive interference that can have a lasting impact on sound quality. At T+A, we saw this challenge as an opportunity to innovate, and the result is a fusion of necessity and engineering brilliance: the T+A High-Frequency Sine Power Supply. With its pure sine wave and a frequency more than twice as high as traditional power supplies, it effectively neutralizes interference.
After years of tireless development, T+A engineers have achieved what once seemed impossible: the creation of capacitors that recharge 100,000 times per second - 2,000 times more frequently than conventional systems. This breakthrough enables them to respond instantaneously to even the sharpest signal peaks, always delivering precisely the amount of electrical energy required.
Our Sine Power Supplies are engineered for unparalleled durability. These "hard power supplies" remain steadfast even under extreme demands, providing the power amplifiers with an unwaveringly stable voltage. This innovation not only fulfills our promise of pristine sound quality but redefines what a power supply can achieve in the pursuit of audio excellence.

Power Amplifier

In the Symphonia, we rely on in-house customizations of the Class-D amplifiers powered by the groundbreaking PURIFI Eigentakt™ technology. Developed by the pioneering Danish technology company, this platform stands in our eyes as nothing less than the world's leading concept for Class-D amplification, overcoming the limitations that have long held back other digital amplifiers through a meticulous and innovative approach.
In the past, digital amplifiers were often constrained by high load dependency, signal distortion, phase noise, and increased harmonic distortion at high power levels. The amplifier technology integrated into the Symphonia not only eliminates these challenges but redefines performance.
Keeping an eye on what is potentially untamed power is our Intelligent Safe Control (ISC), which regulates the system in case a set of pre-defined parameters exceed their operating limits.

Connections & T+A DASS

A T+A streaming integrated amplifier is designed to be the central hub of your musical home. That’s why we’ve equipped the Symphonia with the range of connections needed for truly universal use.
With two digital, two analog, and two USB inputs, as well as an HDMI interface, the Symphonia seamlessly connects to virtually any source. Meanwhile, an integrated phono module ensures that even the most classic of sources benefits from the Symphonia’s remarkable sound performance. A preamp output and subwoofer connection allow the Symphonia to integrate harmoniously into existing systems, making it a versatile and indispensable part of any audio setup.
The Symphonia isn’t just another device - it’s a carefully crafted command centre for all your musical needs, offering connection, clarity, and uncompromising quality.

All analog signal paths are inherently sensitive to digital interference. In a receiver designed to meet the highest expectations, a deliberate and meticulous separation of these two domains is the cornerstone of sonic perfection. Only in this way can the analog music signal remain as pure and unaltered as the artist captured it in the studio.
This is why we developed the Digital-Analog Separation System - using ultra-fast Silicon Labs isolators, we establish a galvanic separation between the digital and analog sections of the device, effectively shielding the analog signal from disruptive interference. To ensure that this separation is upheld throughout the entire signal path, we’ve even gone as far as to isolate the power supplies for the digital and analog domains.

Video Presentations

Axpona 2025

Symphonia Live Axpona 2025

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Specifications

Pre-amplifier

Frequency response +0 /-3dB

0,5 Hz - 300 kHz

Signal / noise ratio

105 / 109 dB

THD | Intermodulation | Channel separation

< 0,002 % | < 0,002 % | > 90 dB

Nominal input sensitivity High level input unbalanced (RCA)
High level input unbalanced (RCA)
Analogue pre-amplifier output (RCA)
Analogue subwoofer output (RCA)

250 mVeff ... 4 Veff / 24 kOhms
250 mVeff … 4 Veff / 47 kOhms / Phono 5 mV (MM/High Output MC
nom 1 Veff, max 9,5 Veff / 47 Ohms
nom 1,6 Veff, max 9,5 Veff / 47 Ohms / TP 240 Hz

Power amplifier

Output power (RMS) per channel

250 watts @ 4 ohms
125 watts @ 8 ohms (FTC Power Output Rating)

Frequency response +0 /-3dB

1 Hz - 60 kHz

Damping factor

> 800

Headphone output

4,4 mm Pentaconn (6 Ohms)

Connections

Digital inputs

2 x S/P-DIF: 1 x Standard Coax, 1 x optical TOS-Link (32...192 kHz / 16-24 Bit), DSD64 (DOP)

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.

1 x HDMI IN with ARC

Analogue inputs

2x high level input (unbalanced RCA) / 1x with switchable phono amplifier

Analogue outputs

1x PreOut (unbalanced Cinch)
2x Sub Out (unbalanced Cinch)

D/A Converter

PCM

Double-Differential-Converter with two 32-Bit Sigma-Delta D/AConverters
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

DSD

T+A-True-1Bit DSD D/A-Converter, up to DSD 512 (22,4 / 24,5 MHz), native bitstream

Upsampling

T+A-Signalprocessor – synchronous upsampling with 4 selectable oversampling
algorithms. FIR short, FIR long, Bezier/IIR, Bezier

Analogue output filter

Phase-linear Bessel filter 3rd order, switchable with 60 or 120 kHz cut off frequency

Frequency response

PCM 44.1 kSps 2 Hz - 20 kHz
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

Streaming Client

Formats

MP3, AAC, OGG-Vorbis, FLAC, WAV, AIFF, ALAC, DFF, DSF

PCM 32 … 384 kHz, 16/24 Bit; MP3 bis 320 kBit

DSD64; DSD128; DSD256

Supported media servers

UPnP 1.1, UPnP AV and DLNA kompatible Server, Microsoft Windows Media Connect Server (WMDRM10, DLNA compatible servers

Supported streaming services

airable radio and podcasts, Tidal, Qobuz, Deezer, Amazon Music HD, highresaudio, Tidal connect, Spotify connect, Apple AirPlay, Plays with Audirvana, Roon

Features

Auto Network Config., Internet Radio Station database (automatic updates)

Interfaces LAN

Fast Ethernet 10/100 Base-T

WLAN

IEEE 802.11a/b/g/n/ac/ax 2x2 MIMO
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).

USB

2x USB 2.0 Mastermode

Tuner (FM)

Frequency range

FM Radio 87,5 – 108 MHz (Europa / US); 76 – 90 MHz (Japanese version)

Sensitivity

Mono (26dB S/N) 0,9 µV, Stereo (46 dB S/N) 40 µV

Overload margin

103 dB µV

Stereo channel separation

50dB

RDS Functions

Stationname, Radio text

Tuner (DAB)

Reception standard

DAB, DAB+

Freqency band

168 – 240 MHz (Band III)

Overload margin

103 dB µV

Sensitivity (BER = 10 – 4)

2,5 µV

Bluetooth

Supported audio formats

A2DP (Audio), AVRCP 1.4 (Control) / aptX® HD, SBC, AAC

Freqency band

2,4 GHz: 2042Mhz ... 2480Mhz
Max. transmission power <10 dBm (EIRP)

RC protocol

AVRCP

Mains

Mains voltage

220-240 V, 50-60 Hz / 110-120 V

Normal operation (max.)

800 Watts

Standby (ECO)

< 0,5 W.

Dimensions | Weight | Accessories | Finishes

Dimensions (H x W x D)

10 cm x 38 cm x 34 cm / 3,9 x 14,9 x 13,4 inch

Weight

6,2 kg / 13,7 lbs

Accessories

Power cord, remote control SRC 2, 2x WLAN antenna, FM antenna

Optional accessories

Power Three HD (Carbon) | Power Bar | Audio Quad (Carbon) | Speaker Hex (Carbon)

Finishes

Silver anodised aluminium (43), black anodised aluminium (42)

Technical modifications reserved

Support

Catalogue

Catalogue Symphonia

English

German

User manual

User manual Symphonia

English

German

App

MusicNavigator G3 App

iOS

Android

Operation with a computer / Firmware

Driver for Windows

Installation manual

Version information

Roon Ready

Update your Symphonia to the latest firmware. To do this, select the ‘Device info’ menu item in the system configuration menu. Then select the ‘Update’ menu item and confirm the web update. Wait until the update is complete. Make sure that your PC and the Symphonia are connected to the same network. Sign up for a Roon membership and download Roon for your PC or MAC. Download the Roon app for Android or iOS devices.

Roon Labs Support

Reviews

Stereo 7/2025

Herforder Sinfonie

Die fabelhafte Symphonia ist der Prototyp des modernen Verstärkers. In welcher Anlage die Symphonia auch immer spielt, sie ist für sämtliche normale bis höhere Ansprüche in gewöhnlichen Wohnzimmern sehr gut und praxisgerecht "motorisiert" inklusive der Veranstaltung gelegentlicher Geburtstags- oder Sylvester-Partys. Man muss sich hier immer wieder vor Augen führen, dass man bei diesem T+A über den reinen Vollverstärker hinaus gleich mehrere zusätzliche Geräte in einem Gehäuse bekommt. Ein toller Universalist!

Den gesamten Testbericht lesen...

Hifi.de 6/2025

Streaming-Großmeister im kompakten Gewand

Ein kompakter Streaming-Amp an dem alles stimmt: Mit audiophilem Klang und üppig Leistung überzeugt der Symphonia auch an anspruchsvollen Lautsprechern. Perfekte Verarbeitung und durchdachte Ausstattung prädestinieren ihn für den Ehrenplatz auf dem Sideboard, den er viele Jahre verteidigen wird.

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Audio-Stereoplay 6/2025

Durchdachte HiFi-Evolution

T+A ist der Spagat gelungen, klassische HiFi-Tugenden mit moderner Digitaltechnik zu vereinen und damit neue und alte High-End-Fans gleichermaßen zu begeistern. Mit Lautsprechern, die dieser musikalischen Informationsflut gewachsen sind und sich dennoch im Hochtonbereich zurückhalten, entsteht eine Kombi, die der Konkurrenz das Fürchten lehren kann.

Den gesamten Testbericht lesen...

Symphonia Streaming Integrated Amplifier

The Symphonia

Concept

Design

Streaming & Converter

Power Supply

Power Amplifier

Connections & T+A DASS

Video Presentations

Specifications

Support

Reviews

Symphonia
Streaming Integrated Amplifier