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ARTISANAL HIGH-END DIGITAL SOURCES. HAND-BUILT IN ITALY.
Discipline, with a soul.
ONE CRITERIA. One reference.
TO MATCH live, unamplified music - BY delivering signal intact to your DAC.
We don't have a "sound."
We refuse one.
The sound of acoustic instruments, heard live, without amplification.
That is our school - and every machine we build is measured against it, note by note, until it is clear, rich in micro-detail, dynamic, alive, tonally correct.
Until it moves you.
That is the fundamental test our music servers, streamers and cables have had to pass.
Every unit is built by hand. SUPPORTED FOR LIFE.
Meticulous care is devoted to every phase of our device's making - from construction to fitment in your listening room - controlling what standardized production ignores: cable routing, mechanical couplings, software configuration and the overall customization upon request.
Before shipping, each unit is carefully calibrated and tested for a full 2 weeks.
R&d since 1999.
FIRST PROTOTYPE IN 2017.
If a machine moves you the way a real instrument in a real room does, it's finished. If not, it goes back to development.
A file can be mathematically perfect, and still be delivered badly.
Everything that happens before the DAC shapes the conditions in which the converter receives the signal and the system will play it out.
No emphasized bass. No brightened treble. No flattery.
Effects that don't exist in a concert hall have no place in our machines - which reproduce exactly what is in the recording.
The skilled art of adding nothing, subtracting nothing. Perfected in 27 years of R&D.
And what remains, when nothing is added?
Everything.
The breath before the note. The weight of a bow on the strings. The air of the room around a voice.
People call this transparency.
We call it discipline, with a soul.
A digital stream is not an abstraction.
It travels through real electronics, real noise, real heat - through power supplies, processors, memory, cabling and network interfaces - and everything that happens along that physical path shapes the conditions in which your converter receives the signal.
A file can be mathematically perfect, and still be delivered badly. This is where our work begins, and where most streamers end. One obsession - protecting the signal - pursued across all fronts: power, network, computation, heat, resonance, operating system, timing.
The signal must arrive at the DAC intact. Everything follows from that.
One discipline.
THREE DECLINATIONS.
wITH A SOUL.
STAGE
Every resource deployed where the signal passes.
A front-panel display contributes nothing to sound quality. You will not find one on the streamers / music servers of the Stage series.
Every resource of the build is optimized around the signal path - nowhere else.
Made for the mature, demanding audiophile who wants one thing: digital sources capable of delivering all the potential of their high-end system.
SIGNATURE
BEYOND THE STAGE SERIES THERE IS ONLY SIGNATURE. Another domain.
The Stage series protects the signal across five fronts.
On top of unique engineering developments, Signature adds the sixth: time.
For over 30 years, the argument has been digital precision versus analog warmth.
Signature rejects the argument entirely.
It pursues something more demanding: the unique emotional signature of reality.
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HOLOGRAM
THE PATH DOES NOT END AT THE SOURCE. High-end cables, handcrafted in Italy.
Inside every TDA machine, the wiring is assembled by hand using top-tier conductors, selected one by one.
The Hologram line carries those same hands, and that same discipline, beyond the chassis: power and speaker cables, balanced and unbalanced interconnects, USB, Ethernet and BNC.
YOUR DAC IS NOT THE PROBLEM.
We have heard many enthusiasts complain that even high-end DACs sound mediocre, or barely satisfactory.
In almost every case, the fault is not the converter. It is a source designed only to please the eye, rather than protect the signal.
Our obsession with the transport exists for one reason: so that whatever DAC you connect delivers everything it was built to deliver. Unleash the performance of your high-end system with a source engineered for the job in every detail.
A new domain. Architecture designed from a clean sheet - engineering that exists nowhere else.
The Stage series protects the signal across five fronts.
Signature adds the sixth: time.
For 30 years, the argument has been digital precision versus analog warmth. Signature rejects the argument entirely.
It pursues something more demanding: the unique emotional signature of reality.
€30,000
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Presented at the Audio Video Show in Warsaw.
The most complete expression of the TDA discipline within the Stage series, turning your listening into an exclusive experience of engagement and sonic realism unmatched in its segment.
Featuring a sophisticated linear power supply, custom upgrading of fundamental hardware components and the adoption of significant mechanical measures against vibrations and RFI/EMI.
€12,350
What Stage #2 begins, Stage #3 builds out to full scale: two full-size chassis, one for the signal, one entirely for power, joined by a locking Harting umbilical.
Behind it, twenty amperes in reserve across four independent lines.
Not brute force, but composure: current that never wavers when the music demands everything at once.
Inside, ECC on-die memory guards the integrity of every bit; beneath, feet machined from solid aluminum hold the whole architecture still.
€9,200
This is the model where the founding gesture of the series happens: the power supply leaves the signal chassis.
Two toroidal transformers --- epoxy-impregnated against vibration, copper-shielded against interference --- move into a dedicated external unit, and three fully independent linear lines feed the digital transport.
Not more components for their own sake: distance, placed exactly where noise once lived beside the signal.
The power supply leaves the chassis. The signal gains space.
€6,950
Stage #1 is not yet another plug-and-play streamer, spreading its budget across a built-in DAC, a display, and features that add nothing to sound quality.
It puts everything where it actually matters: into the digital source.
One chassis. An entire playback architecture, built to govern how your music is reproduced.
It holds your library, runs the engine you choose, from Roon to HQPlayer at full DSD512, and speaks to your DAC through the drivers its own maker wrote.
A combination unique in its class. Designed as a complete system, not a closed appliance. All of it in a single full-size chassis.
A streamer receives music. A Stage governs it.
TDA in its most accessible form.
€5,390
The Stage series protects the signal across five fronts.
Signature adds the sixth: time, featuring unique cutting-edge custom developments.
For 30 years, the argument has been digital precision versus analog warmth. Signature rejects the argument entirely.
It pursues something more demanding: the unique emotional signature of reality.
€30,000
Presented at the Audio Video Show in Warsaw.
The most complete expression of the TDA discipline within the Stage series, turning your listening into an exclusive experience of engagement and sonic realism unmatched in its segment.
Featuring a sophisticated linear power supply, custom upgrading of fundamental hardware components and the adoption of significant mechanical measures against vibrations and RFI/EMI.
€12,350
What Stage #2 begins, Stage #3 builds out to full scale: two full-size chassis, one for the signal, one entirely for power, joined by a locking Harting umbilical.
Behind it, twenty amperes in reserve across four independent lines. Not brute force, but composure: current that never wavers when the music demands everything at once.
Inside, ECC on-die memory guards the integrity of every bit; beneath, feet machined from solid aluminum hold the whole architecture still.
€9,200
This is the model where the founding gesture of the series happens: the power supply leaves the signal chassis.
Two toroidal transformers - epoxy-impregnated against vibration, copper-shielded against interference - move into a dedicated external unit, and three fully independent linear lines feed the digital transport.
Not more components for their own sake: distance, placed exactly where noise once lived beside the signal.
The power supply leaves the chassis. The signal gains space.
€6,950
Most streamers are appliances: closed boxes that run their firmware and forward a stream. Stage #1 is a true music server in one full-size chassis - it holds your library, runs the engine you choose, from Roon to HQPlayer at full DSD512, and speaks to your DAC through the drivers its own maker wrote.
Completely fanless, though it carries real computing power - because silencing a lightweight endpoint is easy, but silencing a working machine is a discipline. No integrated DAC, no display, no ornament: every resource spent where the signal passes.
A streamer receives music. A Stage governs it.
€5,390
DON'T TRUST WORDS. TRUST WHAT YOU WILL HEAR.
Put on the record you know best - the one you could hum in your sleep. That's the one that will give it away.
In your room, with your system, through your own DAC, the difference emerges within moments. And it is one of those differences no audiophile ever goes back from.
We organize demonstrations in the customer's own system, wherever possible, or at selected partners. The demo is free and carries no obligation to purchase. To guarantee an impeccable experience we accept a limited number of requests each month, in order of booking.
THE VOICE OF THOSE WHO LISTEN
"Comparing it with the vast majority of similar products on the market is like racing a go-kart against a Formula 1 car.
I have compared these Servers/Streamers with machines which cost five times as much […] Hearing is believing."
— Alfonso Conserva
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HAND-BUILT IN ITALY.
HEARD WELL BEYOND IT.
Ordering from outside Italy
Every TDA source is built to order and shipped worldwide — insured, tracked, in packaging engineered against shock and vibration. Wherever you are, the machine arrives configured around your system: your DAC, your network, your library, all settled before construction begins.
We complete the setup with you over a secure remote connection, and support you the same way for as long as you own it.
Where a partner is established in your country, a demonstration can be arranged in your own system.
Tell us your country and your chain — we'll tell you exactly what we can do.
Distribution and partnerships
We work with a small number of selected partners, chosen for one reason: they hold the standard we hold.
Real listening rooms, technical competence, and the patience a source like this deserves - not shelf space.
Territories are assigned deliberately.
If you represent brands your customers trust, we'd like to hear from you.