2V output from a DAC is neither high nor low output, compared to most other DACs. It's typical
Agree that is typical or standard voltage output for DACs. Most amplifiers input sensitivity is less than 2 volts. However, many listeners realize improved sound quality with a high quality active preamplifier in the signal path. Even so, you still want to avoid excessively high gain preamplifiers. Thus my suggestion for a modest/lower gain unit. 16 db of gain is gratuitous for most DACs.
Quick example, my DAC has 3.5 output voltage, line stage has 10 db of gain and speakers are 94 db sensitivity. My volume control range is usually 10-2:00 o’clock for a wide variety of recordings.
Charles