They may be few, but there isn’t exactly a shortage of acoustic speakers for iDevices. There is a quality in these passive amplifiers that always makes them appealing. The latest we hear of comes from Japanese manufacturer Pleiades and is called the Trumstand.
It has an acoustic amplifier horn made of brass with an elongated “S” shaped channel that supposedly helps with the bass. Trumstand is available in two options, gold plated, and sterling silver plated.