Audio Brainwavz Beta 2013 Edition OR Delta

[sandynator]

Guys MP4nation is having some deals on Beta & Delta IEMs.
Beta 2013 Edition @ $16.50
http://www.mp4nation.net/brainwavz-earphones/brainwavz-beta-iem-earphones
&
Delta @ 17.50
http://www.mp4nation.net/brainwavz-earphones/brainwavz-delta-iem-earphones

My preference is open & airy sound. Bass should be tight & punchy but not overpowering mids & highs.

My current source:
Nationite N2, Lumia 520 & Nexus 7.
Current IEMs:
SoundMagic ES18, Brainwavz Alpha [received with N2 ], SoundMagic PL30, Logitech UE200 & Signature Acoustics Elements C12 .

Are they worth investing in my case?
If Yes then which are better sounding, more sturdy & durable out of the two?

I was also planning to get VSD1S in next 4-5 months but I doubt if they will please me so may get SoundMagic E30.
Thanks in Advance.

 

[prateekS]

Delta is better than beta.

 

[sandynator]

Delta is better than beta.

Thanks
Both in terms of SQ & Durability as well na??

 

[prateekS]

Yes.

 

[sandynator]

Anybody from Mumbai interested in getting delta??
Can order combo pack @ $29.50 - $3 disc.

Please pm me.