Is it worth it? DAC question

I also recommend strongly considering the Teddy Pardo external linear power supply for the Node. The DAC on the Node is mediocre. The Node’s streamer is very good. It sound great with my MHDT Orchid DAC with both the digital coax (Node -> MHDT Orchid DAC with output tube stage) and RCA to balanced XLR (DAC -> BAT VK-6i tube preamp) interconnects from Silnote Audio. They only sell direct, based in Roanoke, VA. Their line of cables are all top quality, great sounding - clean, tight, dynamic with no hard sonic edges - and affordably priced. They also have great customer service.

You already own the iFi, so plugging it to try it will cost you nothing, so just do it.  That said, I've never listened to it, but I've heard the BlueSound DAC isn't very good.  I own the iFi Zen DAC Signature V2 and the iFi Zen One Signature and I find their somewhat muddy performance lacking.  You might find the iFi's affect works well with the Tektons.

Ifi makes some great products, so does NAD. I’ve recently put a ifi zen signature dac and streamer in my vintage system and am very very pleased with it. I would say they are both in the same league, so it will come down to your preference. However, I’d bet you’d really like the ifi dac. Good luck.  

Good advice here. Experiments are fun and with a DAC, telling. I added an Orchid to my Node 2i and it was a huge improvement. Huge.

That said, which "Node" matters. They recently upgraded the DAC.

I did an external power supply on my Node 2i via PD Creative. Teddy Pardo is a nice unit but nearly or equal the price of the Node itself, I believe.

The iFi Zen appears to have only a USB input. You can only use it if you have a Node N130 or Node X.