The McIntosh D100 includes three devices: a digital pre-amplifier, a headphone amplifier and a high-end 8-channel DAC (32 bit / 192 kHz) that works in stereo Quad Balanced mode.
The front panel with side aluminum "ears" is made of glass and has a characteristic branded fiber optic lighting, complemented by LEDs. In its center is a narrow FL-display that shows the volume level, the selected input, the sampling rate and bit rate of the received signal, as well as other symbols in the setting mode. On the front panel there is a 6.3 mm headphone jack, an input selector knob, a mute button, a setting menu button, a high-precision volume control knob with a step of 0.1 dB and a power / standby button. The power supply, equipped with an R-core transformer, the DAC circuit and the output stages are based on separate boards in order to reduce their mutual influence on each other.
Inputs: two coaxial, a pair of optical and USB (type B), which works in asynchronous mode and receives a signal with a resolution of 32 bits / 192 kHz. To connect the USB port to a PC, you will need a driver available for download on the company's official website. No driver required for Mac computers.
Outputs: two balanced XLR and two unbalanced RCA, and one XLR and one RCA are fixed, which allows you to use the model as a separate DAC and connect it directly, for example, to an external amplifier. Powering on the McIntosh D100 and its connected components can be controlled remotely via a pair of Power Control connectors. The DATA IN input allows you to control this device using the remote control of another branded component connected to it through this input. There is an IR receiver connector, which will come in handy for multi-room installations.

Features McIntosh D100

Digital amplifier, built-in 8-channel DAC (32 bit / 192 kHz)
High-quality amplifier for headphones
Fixed and adjustable balanced and unbalanced outputs
Asynchronous USB input

Technical characteristics of the amplifier McIntosh D100

Output voltage (fixed outputs) 4 V (XLR), 2 V (RCA)
Output voltage (adjustable outputs) 0 - 16 V (XLR), 0 - 8 V (RCA)
Output Impedance 600 Ohms (XLR and RCA)
Frequency range 4 Hz – 68 kHz (+0, -3 dB)
The signal/noise ratio is 110 dB
The dynamic range is 100 dB
Inputs 2 optical (24 bit / 192 kHz), 2 coaxial (24 bit / 192 kHz), USB (type B, 32 bit / 192 kHz)
Outputs 6.3 mm for headphones with an impedance of 20 ohms to 600 ohms, 2 unbalanced RCA (fixed and adjustable), 2 balanced XLR (fixed and adjustable)
Other switching 2 Power Control connectors for remote power-on control, DATA IN connector, IR receiver input
Display brightness adjustment 2 positions
The remote control is universal
Power consumption 20 W (0.25 W in standby mode)
Dimensions (WxHxD) 445x98x406 mm
Weight 6.1 kg

The model makes it possible to obtain a transparent, dynamic, detailed and precisely balanced sound, which is characterized by a wide stage and a special sophisticated emotionality.