Why not using low profile connectors? Unless you do not use it on the go? 

  Thanks Mooses9 ! Yes I do love the SR71b alone, that's lighter and much smaller on the go :)

ostewart didn't you want to use low profile male jacks instead (L shape) ?

Here you go :   My HA 4a CIEM with the RSA 71b and my new DIY cables!!     with the CLAS:    

After a while with Moon cables that I found too much rigid and annoying, I decided to make my own headphone cables! I finally gathered all the pieces, sat down and realised the below pieces.   My balanced RSA cable - 28 AWG 7N Pure UP-OCC Stranded Silver Plated Copper Custom Wire      ...

Don't you want to use the balanced output with these? 

Thank you SoulSyde 

Here is mine: CLAS -dB with SR-71b freshly acquired and a pair of HA 4a with custom Moon cables :)   I really like the form factor with the RSA plugs, it keeps the wires close to the amp and the DAC.      

I asked ALO about the pairing with sensitive IEM and their mk3, and they confirmed they'd be some hiss. I assume an honest answered; they redirected me to some of their other products.

And what is the battery life like? Do you use is with a portable DAC or directly plugged to your source?

Have you any news yet?

Well, let us know if you have more info; am interested!

I have only a balanced DAC for now, but thinking of getting a balanced amp too; so once I do I can give you my impressions.   On the other hand, people mentioned here the probable higher quality of the design of a balanced stage, which might improve the quality of the overall signal; that's...

Do you use them in balanced mode?

The SR-71B has clearly more advanced amp section compared to the Intruder.    The amp section in the Intruder has less hardware:  - price wise they are (almost) the same: the price of the DAC section comes at a cost - it's certainly not 50US - as you guys pointed out - Ray never mentioned...