Noodling away on an unplugged electric guitar is a great way to practice chops any time, day or night. But the raw sound can be a bit disappointing, lacking body and volume. DelSonix says that its clip-on guitar speaker can give a solid body electric a 10 dB sonic boost, which can be directed straight at the player.
The DelSonix SD28 is all analog and is made up of three main components – an off-the-shelf spring clamp that's attached to an instrument's headstock, a hollowed out wooden tube and a polyester resonator. The precision machined tube, or pick-up post, is fashioned from Douglas Fir and has a "specifically designed resonating gap at the bottom." This is held upright on the headstock by the clamp. The square sheet of polyester is folded into a cone shape and positioned to the top of the pick-up post via a shaped base.
Vibrations at the headstock caused by player pick action at the business end of the guitar are picked up by the post and leave the resonator at the top as sound waves. The upshot being that the player is treated to a boosted, fatter acoustic guitar-like sound, but not at a volume that's going to have the neighbors calling the authorities.
When not in use, the SD28 can be dismantled and packed into a 12-in (30.5 cm) kraft paper tube for ease of transport.
The DelSonix SD28 is available now for US$26 (plus shipping). Have a look at the video below to see it in action.