$6,500.00 Regular price $11,995.00

Condition is immaculate, with remote control and manual.

Designed, developed, and manufactured in Denmark, the TDAI-2170 is a stylishly integrated stereo amplifier that has set a new standard in sound. In addition to being fully digital and having flexible upgrade modules and RoomPerfect room correction technology, the TDAI-2170 provides the formula for a sound experience that has left critics and listeners astounded.


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 roomäóîechoes, reflections, and absorptionäóîhave 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.


Even though the TDAI-2170 is highly advanced, it is incredibly easy to set up and use. Check this video for a quick overview of the process.


4K HDMIŒ¬ module

The 4K HDMI module upgrade with HDR support offers a unique and intelligent way to integrate audio and video into your living room, and at the same time to take full advantage of the higher contrast and greater details of 4K HDR sources and displays.

Flexibility in installation

The TDAI-2170 integrated amplifier with 4K HDMI module functions flawlessly in any daily routine. With the HDMI module, you can connect three HDMI devices, like a Blu-ray player, computer, or media player, to your TDAI-2170 and have just one HDMI cable to the TV. The TDAI-2170 will be the central hub for all devices, with no more nests of cables going to and from the TV. With the built-in Express View feature, you will experience immediate switching on your TV when toggling between the individual HDMI video sources.

The HDMI module is CEC compatible, meaning the TDAI-2170 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-2170.

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.ξ

HDMI for audio


Connecting your media player or computer to the HDMI module creates a high-speed digital link with copy protection, which allows for playback of digital high-resolution audio files without any conversions or limitations.

This module is the prime solution for your digitally stored music from a Windows, OS X, and Linux computer or other streaming devices.

The High-End USB Audio module will allow for a direct connection from your computer or other streaming devices into the TDAI-2170. No external or internal conversion is necessary, thus keeping the stored bit-perfect data in its original form and avoiding degradation of the audio signal. The module accepts high-resolution files up to 384 kHz/32 bit as well as DXD and DSD64 & 128.


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 x RCA unbalanced and 1 x 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.


The TDAI-2170 is 100% digital, without sound-deteriorating digital-to-analog conversions. The digital signal drives the speakers directly, with no translation and no middleman.ξ

This unique and technically demanding solution offers noiseless and crystal clear replay at all sound levels. It will deliver the most enjoyable and uncolored sound you have ever experienced.


When music is being mastered, the level is often very high; upon analysis, you will often find several consecutive maximum samples, indicating something has been clipped away from the original signal. Audio that exceeds 0 dBFS (decibels relative to full scale) will sound very compressed because the headroom is nonexistent. This harsh sound is an unfortunate trend in the music industry and is typically referred to as äóìthe loudness war.äó?Œæ

In order to compensate for this, we have created ICC (Inter-sample Clipping Correction). With ICC, the TDAI-2170 can automatically adjust up to 12dB headroom in the signal processing to avoid clipping of the signal. Through this you will enjoy the full dynamic range and a more natural sound.


Whether used with full range, satellite, in-wall, or on-wall speakers, the TDAI-2170 is the perfect choice for any brand or model on the market. Because of its unique technologies, the long-contested challenge of speaker placement no longer compromises performance. On the contrary. Simply place your speakers up against the wall to get the least amount of damaging reflections. From there, RoomPerfect䋢 will adapt the speaker to the room and remove any unwanted bass boom.Œæ

Have a subwoofer? Not a problem. RoomPerfect䋢 perfectly aligns the subwoofer and speakersäó» frequency response, so differences between peaks and dips in the bass and midrange responses are eliminated.


The TDAI-2170 is a masterpiece of substance and style. The amplifieräó»s chassisäóîa salute to modern industrial designäóîis built like a tank and dressed in the signature black finish fans of Lyngdorf Audio love. The design is complemented with black glass and aluminum in a sleek profile that complements any dí©cor.Œæ


Specifications ξ
Power Rating 2 x 170 W @ 4Ohmξ

2 x Analog Single Ended RCA
2 x Coaxial Digital (äŠ_192kHz / 24 bit)
4 x Optical Digital (äŠ_ 96kHz / 24 bit)

1 x Coaxial Digital (96kHz / 24 bit)
1 x Single Ended Analogξ
Optional Modules

4K HDMI Module with three inputs (äŠ_192kHz/24 bit) and one output / CEC and ARC compatible
Streaming USB Input Module (äŠ_384kHz/32 bit + DXD / DSD64 / DSD128)
High-End Analog Input Module (3 x single ended / 1 x balanced)
Dimensions (HxWxD)

10 x 45 x 36 cm
3.9 x 17.7 x 14.2 in
Weight 8 kg / 17.6 lbs