Yup. I have to use them with the adapter,

Already requested for return. The left housing sometimes doesn't sound properly. I checked on chinese forums. People claim that the issue is from the adapter.

There are many threads reviewing the DN 1000 in detail. In short, It's V shape. The 329 iem thread also has a review for the dn 1000.

I have a dn 1000 for sell. Don't know if it matches your needs because I've not heard about the R-50

I bought a HM-603 slim to pair with my re-600. Hope they match well together.

But a bought the re-600 a day before the bundle price went down...

This bundle is sold for $300 in Amazon.

Thank you for your reply. Have you also tried it on the DX 50?

I'm currently using the clip+. I'm not sure if it works good with amp. The DX 50 doesn't seem like having the balance output, but it's a nice option. However, at this time the hm 700 & 601 is much cheaper. The problem with hm 700 is that it doesn't support external sd card.

Do you recommend to pair the re-600 with the HM 700 or the HM 601? I recently bought a pair of re-600 as they were on sale

Do you recommend to pair the re-600 with HM 700, HM 601 or hisound 3nd ANV that you mentioned?

I ended up with the RHA ma750i. First of all, by the time I was deciding between them, the EPH-100 was traded at about $150. Secondly, the RHA's build quality and warranty was quite amazing. I'd say that the build quality was supreme, extremely solid.   By the way, I'm now trading the RHA...