NAD D 3020 V2 vs NuForce DDA 120 review
NAD D 3020 V2 review
What we can see from the start is that this device has more power than its opponent. 30/8 vs 25/8 W/Ohms. Inside the device is a class D circuit, which is notable for its low power consumption and, consequently, low heating. The impulsive power supply is small in size, which allows all parts to fit in the compact case of the device. It is fair to say that class D circuit technology and switching power supply are not unique in terms of audio equipment. This version also lost the combined analog-to-digital input, but got the output of a pre-amplifier instead. The place of the USB converter was taken by the input of the phono stage. 
NuForce DDA 120 review
The device is an integrated amplifier and DAC in one nice aluminum case, capable of receiving digital and analog signals, as well as controlling the playback of digital music in all possible ways in your home. Given the miniature size of the device, the number of connections with the DDA-120 can be called enviable: two digital optical inputs, one coaxial, a USB port and an “expansion slot” for the complete NuForce BTR-01 Bluetooth module. In addition to the five digital inputs, there is also an analog RCA for connecting system components of previous generations. A neat, albeit inevitably overloaded rear panel also populates the speaker outputs, power connector and switch. 
NAD D 3020 V2 pros & cons
Pros
- Lively and captivating sound
- Flexible feature set
- Small size and high quality workmanship
Cons
- A limited number of inputs of each type
- Phono entry is good but not great
- Poor fit with low sensitivity speakers
NuForce DDA 120 pros & cons
Pros
- I like that here I have enough input quantity
- This unit produces clean and clear midrange
Cons
- LF lacks scope
- Cheap remote control
