The TDAI-2170 is modular in its input and output design, so different input and output configurations are offered. The standard inputs include two sets of single-ended RCA analog inputs, two coaxial digital audio inputs that can handle up to 24-bit/192-kHz signals, and four optical digital (Toslink) audio inputs that support up to 24-bit/96-kHz. Standard outputs include one coaxial digital audio and one set of single-ended RCA analog outputs.

The optional HDMI module includes four HDMI inputs, supporting 24-bit/192-kHz, DSD64, and DSD128, along with one HDMI out. The manufacturer believes HDMI is a viable and useful digital standard, and many audio sources are now using this interface--for example, satellite or cable boxes that offer music channels and, of course, Blu-ray players for music and video on disc. This also allows the use of the TDAI-2170 in a two-channel video setup.

TDAI-2170-USB-module supports up to 32-bit/384-kHz files, including DXD, DSD64, and DSD128. This module is perfect for people who use their computer as their server or stream music from a site like TIDAL.

TDAI-2170-analog-module is a high-end analog input module with three sets of single-ended inputs and one set of balanced inputs. Audio enthusiasts love their analog devices, and they want them supported. The 2170 handles analog-to-digital conversion using an AKM-AK5394A A/D converter.
The sound is stunning, clear, and articulate, with fantastic soundstage and dynamics. The dead-quiet background is an added benefit. The unusual dynamic range at lower volumes was yet another unexpected benefit of the design. Room Perfect gives you the ability to locate speakers up against walls.
Specs:
2-channel digital integrated amplifier with RoomPerfect™
INPUT

2 x Analog Single Ended
2 x Coaxial Digital (≤192kHz / 24 bit)
4 x Optical Digital (≤ 96kHz / 24 bit)
OUTPUT
1 x Coaxial Digital (96kHz / 24 bit)
1 x Single Ended Analog
OPTIONAL MODULES
HDMI Module with 4 inputs (≤192kHz/24 bit + DSD64 / DSD128) and one output / CEC and ARC compatible
Streaming USB Input Module (≤384kHz/32 bit + DXD / DSD64 / DSD128)
High-end Analog Input Module (3 Single ended / 1 Balanced)

DIMENSIONS
(H x W x D)
10 x 45 x 36 cm
3.94 x 17.72 x 14.17 in
WEIGHT
8 kg
17.64 lb

Includes:

Manual, Power Cord, Remote, Room Perfect Microphone cable and Microphone stand.