Buying Advice: ALO Rx MK3 or ALO Continental v3 or Apex Glacier

[samsamsam047]

I currently own the Rx Mk2 amplifier and I really enjoy its sound signature and how it drives my earphones / Headphones.
I am thinking of upgrading to either the Rx MK3. the Continental v3 or the Apex Glacier.
 
The Gear I most often use with the amp would be:
- Ultimate Ears Reference Monitors
- Sennheiser HD 25-ii
- Klipsch image X10
 
As I use my current amp setup with a lot of IEMs, I am afraid of the "hiss" or the "humming" that may result from a higher powered amplifier. 
 
I would be very grateful for any advice given.
Thank you. 

 

[ushman]

I just got the Continental V3 to use with my UE Pro 5. There is a hiss, but it's noted that after 100 hours of burn in, the hiss will disappear.

 

[samsamsam047]

Thanks for your suggestion ushman
Im going to try the amp out once the amp arrives in retailers in my country.

 

[SoundFreaq]

I've heard the MkIII is so powerful, that with IEMs it doesn't have as low of a noise floor as the RSA SR-71b, which is why I went with that over the ALO stuff. Reports of hiss with Continental too. Supposedly better with burn in. 

 

[samsamsam047]

Thanks for the advice SoundFreaq, I'll go try out the SR71b and see how it sounds