[sexiewasd]

I just don't ever need speakers "on the go".
 
I vote no, unless they also had a pico projector built in and a heads up display, with blutooth.

 

[4Wise]

What would you use the Pico Projector for/ when would you use it? Would this be for when you are out of the house?

 

[sexiewasd]

For being a walking movie theater,what else?  Just think, bored? want to make some new friends? Get some popcorn and gather round because inceptions about to start!

 

[tranhieu]

^ I LOVE Inception!
back to the topic, I'd have to say no. Sorry, but your idea is not even feasible to begin with. There's a huge issue regarding power and efficiency, not to mention they must be closed back, have good isolation to be called portable, which is not in the scope of speakers.
I used to have a k1000 pair btw, and if someone tells me to bring them out for a walk (assuming he could solve the power issue) I would say no in a heartbeat. Speakers (and earspeakers) are meant to be indoor.

 

[obobskivich]

This has been done, and there is a current product on the market that does it:
http://www.audiocubes.com/product_info.php?cPath=23&products_id=2988
 
I would not buy them and I have never heard them. 
 
If you want a full-open design, the K1000, F1, and potentially SR-Sigma (it's the right shape-ish) come to mind, but none of those would really work as speakers. 

 

[Uncle Erik]

No, the K-1000 cannot be converted to speakers. They have a speaker-like presentation and require speaker-like power, bu they are meant to be worn on the head. You cannot set up a K-1000 to replace a speaker system.

I don't like this idea, either. For me, the point of a speaker is to have a good-sized woofer. 6" is about a normal starting point. Then you have to have a substantial cabinet and even the crossover will weigh several pounds if it has inductors. Most will need a good amp to drive them and, of course, you'll have to power the amp.

If you try to power tiny drivers with a portable source, you might as well tote along a laptop and listen to its speakers.

 

[audiogamma]

Yeah, not feasible. Consider the output of HPs that fold flat... the Ultrasone 900s and Beyer DT1350 come to mind. Neither would make for satisfying speakers.

 

[J0nny]

8 small drivers in one cabinet? Never took off (for quality reasons I presume)? Sounds like B O S E to me! Hee hee!

 
Answering the OPs question, if you could engineer such a product that sounded decent, then I suspect that, aimed at the right demographic, these would work very well. But I happen to love the intimacy of headphone listening that can't be achieved with speakers. But then again I love the atmosphere of speakers that can't be achieved with headphones.