Best way to connect Audio to MacBooks

I'm patiently awaiting the next rMBP release, but anticipate having some difficulty with audio connectivity to local speaker system.

I technically could, just use the 'headphone'/'line out' port on the laptop, but this seems unnecessary, given that Bluetooth is an option, as would potentially, an audio output on a (future) Thunderbolt display....

The waits been unfortunately terribly long...but I'm fully expecting a improved rMBP when the Haswell refresh surfaces...I still suspect the concern for audio output will persist post Haswell refresh, given that there is no concrete knowledge of what the next Thunderbolt display will feature.

So, I think my question is...(and I apologize for not getting to the point sooner)...is there an adequate, low-latency/no delay bluetooth audio connectivity to standard (or bluetooth enabled) speaker systems?

I recently picked up the Logitech adaptor, and tested with my MacBook Air, and noticed a .5 second or so delay...My primary purpose is to use the new rMBP with audio production, so the the delay over bluetooth currently is unacceptable.

Is there another way?

Any information / inputs appreciated

 

Thanks...now you've got me thinking about external DAC solutions such as this...http://www.apogeedigital.com/products/duet.php . . . I'm familiar with it so this should work although a bit pricey. At my studio I have presonus equipment which is sufficient, but not at home. So maybe this or another output would be the answer. Yet another piece of equipment on my desktop...now I need to get good monitors.