We described Portable Sound Labs last year as “Most Improved”, having seen a few new speaker systems in some interesting configurations. This year, it showcased two similar modular setups: the Pipeline and Drop, as well as the modular KONX living room audio system. The $249 Pipeline package includes a Pipeline receiver and two Drops—handheld, RF-connected portable speakers that can be added on for $99 each. Each Drop can also be…