Budget integrated amp needed

I have a little bedroom system - NAD receiver, Pioneer SP-BS21 speakers and a Bluesound Node. It fits my bedroom music needs perfectly! Unfortunately, the NAD, from the mid 90’s, has had it- 

I am looking for a replacement integrated. I don’t need Bluetooth DAC or AirPlay- just a straight forward integrated and low power is fine. 
 

Suggestions please! Ideally budget is about $300- give or take and I’m not adverse to used 

thanks!