I'm fascinated by acoustic properties. If it makes a sound, I'm interested. So when the news came across my Facebook timeline that an inventor made a guitar amp that increases sound levels of an electric guitar by 12 decibels...without using electricity, I went crazy!
Canadian company, DelSonix has just introduced a "speaker," known as the SD28, that is made of a hollow wooden pickup with a bottom-resonating cavity. The contraption is clamped to the guitar's headstock. It picks up the instrument's vibrations, while a resonator projects the sound.
In a way, it's similar to a Victrola record machine, taking acoustic vibrations and amplifying them through a wooden tube and out into a cone.
DelSonix says the invention works with all electric guitars and basses (hmm...cigar box guitars?) and can increase loudness from 6 to 12dB, depending on guitar design. By rotating the resonator, guitarists can project the sound in specific directions, while the entire device rolls up into a 1-inch tube for storage.
The SD28 is available now. It costs $34 CAN ($24 U.S.) and ships to Canada, U.S., Europe, Australia and New Zealand.
Clever idea , so it will only be a matter of time before we see home made versions appear! They reckon this to be £17 which seems a bit steep. Not sure if that includes carriage either.... In the meantime lean yer geetar against a nice wooden table for added resonance !
It's neat, but it's the guitar version of putting your smartphone in a bowl when you play music on it. Someone / some company will make a Chinese copy, um, version and sell it for $1.
Hopefully Sean someone will, I would be off to Poundland like a shot !
Has anyone in CBN tried this out yet ? I understand how it works with a solid body guitar, as the video demonstrates, but I'm guessing the more hollow the body , the less volume increase would be achieved . I'm guessing if you clipped it to the headstock of a J200 the volume projected from it's soundhole would be far louder than the sound from the cone ? I may be totally wrong, but thought I would put it out there .....
Thanks for the technicals Ron . Just did the tuning fork test and that makes sense now.
At this point ,us Brits of a certain age will have read Oily's last post and will have visions of Rhubarb , shakily hammering and sawing in his shed in the dead of night while Custard lurks outside with his hands over his ears and the birds on the washing line giggling :-D
;) Oily. Interested to see and hear what you come up with.
This reminds me of a story Les Paul told about when He was a kid. He used a old Victrola needle and embedded it in his acoustic guitar bridge, then attached wires to the Victrola horn. He got the idea from the windows rattling when a train rolled down the tracks near his home.
Also check out the Stroh violin for a similar sort of thing.