Nobsound NS-20G amplifier will work on 3 ohms

My nobsound ns-20g amplifier dosent show any signs of overheating or lot of disturbance only little bit on high volume I have connected two bookshelf speaker 35w+45w both are 6ohms connected in parallel configaration which goes to 3 ohms
Per channel

My amplifier specs

Nobsound ns-20g
the output power is improved to 200W (100W*2) with 2PCS TPA3116 chip
Suits 5-8 inches / 4-8Ω / 20-120W speakers
 
Yes 2 tpa 3116 chip in pbtl mode can drive 2 ohms.
100W per chip with 24 volt power supply, you need a good power supply, at least 200W minimum. This will depend on your listening volume and the possible heat dissipation of this small box...