NEW Sonusphere Models: Introduced 10-10, 2018
Sonusphere has a new phone number, (001) 541-683-6052. And we now offer powered guitar and bass cabinets, previously only available with P.A. mains and monitors. Check them out on their individual model pages, accessed above. And keep in mind that since P.A. cabinets are designed to faithfully reproduce the sound of all instruments, Sonusphere P18 and M18 passive and powered models will also work excellently for any instrument you play through them.
Shape Matters
Acoustical engineering literature acknowledges that a sphere is the optimum enclosure shape for providing flat response. By contrast, of 12 classic shape geometries, a cubical box is the fourth best and the common rectangular box is the fifth. Properties of various speaker shapes in Figure 7-11 above. Twelve different enclosures tested for their effects on the final frequency response of a loudspeaker (after Olson). Source: Martin Colloms, “High Performance Loudspeakers,” 3rd ed., Pentech Press, 1988.
The Natural Warmth of Flat Response
Providing flat frequency in a speaker cabinet results in all audible frequencies from the (musical instrument) source sounding no different through that speaker than what the source (instrument) naturally/acoustically sounds like. In essence, whatever goes in comes out with little or no variation in amplitude (loudness) of frequencies within the audible range. Flat response is the accepted gold standard for music listening and most live performance. To maximize your Sonusphere, compliment your cabinet with a preamp or complete amplifier that provides the same qualities.