64 Audio U4s | Hybrid Dynamic + BA Universal IEMs

Outstanding performances from U4S and Bloom Audio’

As it says in the title, the U4S in just breathtaking! As is the customer support from the Bloom Audio team! I cannot believe how wonderful this staff is. They were insanely helpful from start to finish and offered so much insight into multiple IEMs before I landed on these. The U4S themselves offer so much versatility and performance for the price! I purchased the M12 module to complement the 3 included and between the m12 and m15 they satisfy so many itches I had been missing with other sets. Thank you Bloom Audio team, with a specific shoutout to Matthew and Caleb who put up with me from the start! You are just absolutely wonderful humans. To;dr: Bloom Audio is wonderful, and but U4S! They are excellent!

Best value IEMs

Worth the money.

Outstanding IEMs

For IEMs in the $1k price range the 64 Audio U4s is the best I have tried. My ears are sensitive to larger, heavier IEMs but these are just right, with a snug non-fatiguing fit. The sound is just plain fun and musical, with just the right amount of treble and good solid bass. I don’t find the mids to be recessed at all in contrast to some reviews I’ve seen. They have wonderful detail retrieval and a really good expansive sound stage. I really like 64 Audio’s Apex Module system which allows me to adjust the tonal characteristics. It’s a great option that makes these IEMs a better value than the competition. These sound great with every genre I’ve thrown at them. I listen to primarily classical and these really shine with that, but jazz and rock sound wonderful as well. My only complaint would be in regard to the cable, which only comes in a 3.5mm termination. I much prefer these with my after market cables with a 4.4mm balanced connection. Otherwise I have nothing but praise for the U4s and can recommend it wholeheartedly to anyone looking for a top quality great sounding IEM.