Streamer only

Orchard audio has an excellent Streamer for $1,200 and it also has an excellent internal DAC  I would be surprised if the Orchard audio DAC didn't out perform the DAC you have i your intergrated amplifier  Orchard Audio has a 30 day trial period Also you could call Leo (owner) at Orchard Audio 

If you are just starting out with streaming, and want to get in under $1,000 here are some decent choices;

Bluesound Node - Make sure it is the 3rd generation "Node 130" or Node X, as the older Node 2 and 2i do not have USB output.....they have the connector, but USB is not activated. Several have mentioned a linear power supply, and I agree. I currently still use a Node 130 with LHY linear power supply, and a Denarips Iris DDC to great results. A Node 130 can be found used for under $400, and the LHY LPS would add $279. The Node software is some of the best available, and you can probably sell the Node 130/LHY LPS for not much less than you bought it for

Eversolo DMP-A6 is well thought of, and can be upgraded with an LHY LPS if you wish to extract more sound quality later.....about $850 new, and really hard to find used. I'd read some reviews there.

You've already got some other excellent recommendations. I will eventually upgrade my Node 130/LHY LPS/Iris DDC at some point.....but I find no need to do so immediately, I really do like this combo

@randalljkrebs1 Never had a problem with mine. I’ve had more problems with BlueSound Nodes and I’m not knocked them. I don’t think you can beat the ifi streamer at that price point. Just my opinion and I have an Esoteric Network player in my main system. 

To the OP:  Beware those who try to shame you into spending a lot on a streamer simply because you've got a lot invested in other parts of your system.  The logic only holds if one believes there are material differences in the sound of streamers.  That is itself a somewhat controversial topic, which has been discussed and argued about on this forum and others ad nauseum. 

Let me know if you're interested in educating yourself further on this topic; I would be happy to point you to several other threads where both sides of the issue are explained pretty comprehensively.  As you could probably guess, my own view is that streaming is an area where the greatest amount of misinformation and overspending is occurring these days.  (And for the record, I've been streaming since 2004.) 

@alvinnir2 I do! She was great. In a way, I liked the typo, because there are streaming options for $100. Not great, but doable. Viz., 

https://www.theabsolutesound.com/articles/how-to-build-your-own-low-cost-high-performance-streamer/