Custom tips for Z1R Fantastic experience doing business with ADV. I ordered a set of custom tips for Sony IER-Z1R. ADV delivered a perfectly fitting set of tips in far less time than originally estimated, and was also able to deliver 3D scan files of my ear impressions for further use.

Great product with exceptional sound… Great product with exceptional sound quality. I plan on purchasing from ADV. in the future.

Ordered Eartune Fidelity U for my IER… Ordered Eartune Fidelity U for my IER Z1R. Best tips with this IEM after trying lots of eartips. Solved the recessed mids problems with some songs, especially male vocals. Hearing more elusive details too. The only thing making me hesitate to give a 5 stars rating is shipping is so so and expensive.

Superb Products and customer service.A++ I have been a regular customer of Adv products right from model 3 time (which is still a great.earphone btw) and when they were called advanced sound. I am truly a fan of their customer service. Although I am based in Australia but they have always responded with utmost sincerity - understanding every aspect and responding in a truely supporting way. I had an issue with a Model 3 last to last year and a Model X+ few days back and they have always taken care of me Love your products and the customer service. A++ Cheers, Ashish

Nismo Gaming Jr. (They are better than their 30$ price tag , worth the money) I've received their amazing headphones a month ago. The left ear piece fell out due to error, but they didn't hesitate to provide me with a replacement in hope that it was a faulty pair. The sound is extremely good for the price. I would suggest these to content creators who need great sound quality, including that it works very well with VR Headsets that include a 3.5mm Headphone Jack.