Streamer, Dac,with Pre Amp

I watched a review that said dmp-a8 sounds better using as dac streamer and pre amp  instead of using it as a streamer dac 

I wouldn’t take that review as gospel, you’d need to hook it up before knowing.  What preamp was it used with in the review?

I haven't got th eversolo dmp-a8 yet any suggestions on what to get 

He use the eversolo dmp-a8's pre amp and must have hooked it up to a amplifier 

Excuse my ignorance been into audio since the early 90s