The xDuoo XD-05 Plus is a mobile DAC/Amp that can work separately as each option and provides 1W of pure power through the headphone output. It is priced at 289$.
iFi Audio just released its newest product - the iDSD Neo. I'ts a stationary DAC/AMP combo with Bluetooth, balanced output, and unique, futuristic design. It is priced at 699 USD.
JDSLabs Atom stack contains of the Atom DAC (99 USD) and the Atom AMP (99 USD). It is widely regarded as one of the biggest bargains in the headphone audio market. Let's see how true this statement is.