Portable DAC compatible w/ iPhone or iPod


Hello, I'm a spinning enthusiast who loves to jam to some motivational music at my local LA Fitness spin classes. The instructors do the best they can outputting their playlists from the phone mini-jack split into a stereo RCA interconnect that connects into the gym's reasonably powerful amp & speakers.
Often the sound quality is just awful. No punch to the Metallica or Michael Jackson or whatever music they choose.
It would sound so much more forceful but less fatiguing at the same time if the instructor's phone or iPod could be docked in a way that the data will upload raw to the portable DAC.
I've been looking for a versatile DAC that can be easy to use & hookup to their system quickly. I've seen the one company in California that makes triangular portable DAC's, but I don't recall their name right now. Basically I'm looking to mount up my phone & still get good sound
masi61
For the iPhone 6 I guess I'll have to use the converter dongle that connects the old style 30 pin connector to the current Lightening connector.
Masi61

Yep, I use one with my iphone and works fine.
Just remember that if the instructors are using low bit mp3 files nothing will help.
You should do a test and put a cd on your phone in 2 different quality levels and listen for yourself (mp3, mp4 and maybe flac). If you can't hear the difference, then it's the sound system, which is probably Bose and can't do better.
Also, what about the people using Androids? An OTG cable may be in order.
I'm a spin instructor and gave up on quality a long time ago.
Elevick - I appreciate your expertise as a spin instructor. I'm thinking that having an actual small high quality DAC in the spin class that the instructor can plug his phone into is going to produce noticeably superior sound even with low quality MP3 music tracks. I'm sorry that you "gave up" on trying to get decent sound. What source were you using? Did you just connect up to the mini-jack? Did you try it with a DAC?
What I hear in these spin classes is classic low quality iPod through mini jack crappy. I believe this is very fixable!
I spoke with my favorite instructor about it this morning & she is willing to try the Nuforce when I get it. I let her know I'll need a place to plug up the wall wart & I need some exposed RCA interconnects. Both of these requirements are potential issues since the back of the equipment rack is padlocked & only the manager is authorized to unlock it. Also, all the outlets appear to be in use so I would need to haul in my own multi outlet strip. I plan to ask the front desk if we can run a set of RCA interconnects through one of the unused auxiliary inputs (if there are any left) from the back & long enough to dangle out front
I'm thinking of that other company that makes clever little "Toblerone candy" shaped mini DAC's
I think you're referring to this company: http://www.highresolutiontechnologies.com. Their Music Streamers used to be triangular. It looks like they've changed the case. I have no experience with any of their products, but they get good comments from owners and reviewers.