Lyngdorf TDAi 3400 Integrated Digital Amplifier-  With Streamer
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Lyngdorf TDAi 3400 Integrated Digital Amplifier-  With StreamerLyngdorf TDAi 3400 Integrated Digital Amplifier-  With StreamerLyngdorf TDAi 3400 Integrated Digital Amplifier-  With Streamer

Lyngdorf TDAi 3400 Integrated Digital Amplifier- With Streamer

  (1 Review)

With RoomPerfect – The World’s Best Room Correction


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£4,162.50 Exc. VAT |  


Lyngdorf’s are powerful, sweet, vibrant and dynamic sounding and RoomPerfect will make any speaker system sound like you’ve never heard it before.

Lyngdorf TDAi 3400 Integrated Digital Amplifier-With Streamer

RoomPerfect – The World’s Best Room Correction

Room correction has never been used in stereo systems because the systems available change the characteristics of the speakers. RoomPerfect is the only system which preserves the sound of the speakers used making it the only correction system suitable for audiophiles.

Lyngdorf's new integrated amplifier and audio processor is their most powerful product yet.

Through the web interface you can perform all setup and operations from the menu system, which allows you to tailor your setup and sound, and the digital crossover allows 3 individual output settings. You can create your own equalising filter to optimise your speaker performance, and through TDAI-3400’s built-in tool you can to customize 32 voicings, which allows you to change the overall tonality of your system related to media source and listening situation. The impressive speaker output section is based on Lyngdorf's heritage Equibit™ technology designed with extremely fast switching low-Rds MOSFETs for the highest possible efficiency. It combines full dynamic performance at low levels with an extreme maximum current output of 40A. With Lyngdorf's proprietary RoomPerfectTM room-correction software to eliminate the negative influence of the listening room, the TDAI-3400 delivers a perfect sound without the need for extensive room treatment.
Impressive build quality is a salute to modern industrial design, the chassis of the TDAI-3400 is executed in the signature sleek design of Lyngdorf Audio. The TDAI-3400 doesn’t generate much heat, allowing for passive cooling with no need for noise-inducing fans or vents. With the TDAI-3400, you will enjoy the extremely low background noise of the digital signal processing. 
The TDAI-3400 accepts all media interfaces and features a built-in media player with the highest playback quality. Through your local network or via the USB connectors, you can access your entire library of music through the DLNA/ UPnP enabled player. This media player also connects to streaming services like Roon Ready, Spotify Connect, and Airplay as well as internet radio.


With the HDMI® module, you can connect up to three HDMI® devices, including Blu-ray players and other sources, to your TDAI-3400 and have just one HDMI® cable to the TV. Simply let the TDAI-3400 be the central hub for all your devices, with no more nests of cables going to and from the TV. Don´t settle for the sound coming from your TV´s built-in speakers; it´s time for an upgrade.
CEC - The HDMI® module is CEC compatible, meaning the TDAI-3400 can automatically turn on and off when your TV or connected HDMI® device does. This feature also enables you to use your TV remote to control the volume of the TDAI-3400.
ARC - The HDMI® module supports ARC (Audio Return Channel), which sends the audio from the TV to the TDAI-2170 through the HDMI® cable. This is the perfect solution if you have a TV with a built-in tuner and you want audio to come from your audio system.

High-End Analog Input

Supplementing the standard analog inputs, the High-End Analog Input module is the ideal solution for connecting analog sources of the highest quality. It comprises 3 RCA unbalanced and 1 AES (XLR) balanced inputs. Input selection is carried out via the double gold-plated relays, normally only seen in expensive high-precision measuring equipment. Since analog signal levels can vary considerably, the input sensitivity of each input can be increased by up to 24dB. The sensitivity is adjusted in the pre-amp section before it is fed to the converter, granting full dynamic range for the conversion. The A/D conversion is performed by an AKM-AK5394A processor, which, with a dynamic range of 123dB, has proven its capacity to convert music to the digital domain in many Lyngdorf Audio designs.


With most systems, more than 50% of the sound you hear comes not from your speakers, but from your room. The placement of your speakers and the shape and dynamics of the room—echoes, reflections, and absorption, have great influence on what you hear. RoomPerfect™ is the most advanced and user-friendly room correction system in the world. It identifies the characteristics of your speakers and the influence of your room, and it takes the room out of the equation. With RoomPerfect™, your speakers sound exactly as the manufacturer intended them to, not the way your room makes them sound.
Optional HDMI® module                                                                Optional  High-End Analog Input module                  
Power handling 2 x 400 W RMS @ 4Ohm / 2 x 200 W RMS @ 8Ohm
Standard digital inputs 1 x AES-EBU (≤192kHz/24bit)
(Asynchronous) 2 x Coaxial (≤192kHz/24bit) | 3 x Optical (≤96 kHz/24bit) | 1 x USB B (≤384kHz/32bit, ≤DSD128, DXD)
Standard analog inputs 2 x Analog Single Ended RCA (Max level: 4.0V = 0dBFS) | 1 x Microphone input for RoomPerfect™ calibration
HDMI module (Optional in-/output) 1 x HDMI Output / 3 x HDMI Inputs (PCM ≤192kHz/24bit) | ARC (PCM ≤192 kHz/24bit) | CEC integration | HDMI 2.0a support | HDCP 2.2 | Resolutions requiring 600 MHz clock supported
High-end analog input module (Optional ) 3 x Single Ended RCA | 1 x Balanced XLR
Standard outputs 1 x Stereo Analog RCA | 1 x Stereo Analog XLR | 1 x Stereo Digital Coax | 1 x Headphone 3,5mm
Audio specifications Frequency Response: ±0,5dB from 20 to 20,000 Hz
Total Harmonic Distortion 0.05% max from 20 to 20,000 Hz | THD-N 1w/8ohm 0,04% / THD-N 1w/4ohm 0,04%
Mediaplayer Roon Ready | Spotify Connect | DLNA Support (uPnP) | Airplay, Local file playback (USB) | Internet Radio (vTuner)
Wireless connections Bluetooth (4.2 BLE), Wi-Fi (802.11 n/ac)
Trigger (12V) 1 x Input, which can be related to audio inputs | 1 x Output | 3.5mm jack / Thresholds approx.: On: 2.4V Off: 1.6V
Control interfaces Web-interface | IP Control | 1 x DB9 connector for RS232 control | 1 x RJ45 Ethernet LAN connector | 2 x USB connectors (Type A) |1 x SD card slot (Backup of filters and settings)
Accessories included RoomPerfect™ Microphone | Microphone stand | cable & mini-jack connector |
Dimensions (W x H x D) 45 x 10.5 x 36 cm (including connectors)
Weight 8.2 kg
Finish Matte black
Average Rating (1 Review):  
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RoomPerfect is Brilliant
03 June 2022  | 

For me, in an non-ideal room, the TDAI-3400 was the product I was looking for with it’s excellent RoomPerfect. The boomy bass is gone, replaced by a sense of cohesion that is making me enjoy.

The integrated streamer is decent and the Lyngdorf app’s UI is ok. That volume knob on the iPad is asking for trouble though as one wayward swipe would send volume soaring.

My other main gripe is the lack of Qobuz integration built in, so I might have to go the Roon route. Software issues aside, it truly tied my system together

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