Forget about the Sonostand. That’s small potatoes, literally.

Seth Ellsworth’s Table Top Concert Hall non-charging iPhone stand uses the same scientific principles to deliver a much more powerful blast of sound into your eardrums.

The all-analog construct — no power cord required! — is built out of  a salvaged phonograph horn topped with a block of wood. The iPhone slots into the chunk of wood, which funnels the sound out of your smartphone’s speakers and through the phonograph horn, offering a 30 percent increase in volume.

Each unit costs $300 and is built to order, so expect to wait two to four weeks before delivery.