Bass Speaker Size Matters
Yes in bass cabinets size does matter. However, bigger isn't always better. As important to a bass player as an amplifier is the speaker setup. When it comes to speakers, making the right choice can mean the difference between accurate and sloppy bass frequency production.
The prime factor in choosing speakers is the size. One common misconception is that bass players require bigger speakers to compensate for the lower ranges. In reality, the speaker choice depends on the playing style and desires of the bassist. Smaller speakers, such as the 10-inch, perform great in tight, accurate situations, such as in slapping and picking.
If the speaker is too small, such as an 8-inch, it will produce an overly snappy, unflinching tone. For general play, a 12-inch or 15-inch arrangement is best, as the tone will be broader and more versatile. However, sometimes large is too large, as with an 18-inch speaker. 18-inch models produce an unsuitable heavy, sloppy tone.
To cover the entire spectrum of bass frequencies, musicians utilize a combination of speakers for best results. In some cases, multiple speakers can be contained in the same enclosure, labeled as 2 x 10" for example. A typical setup includes a 15-inch to contain the low-end, dual 10-inch speakers to handle the punch and midrange, and tweeters above to handle high pitches.
With all bass speakers, the enclosure is as important as the cones themselves. In order to achieve a good response, the cabinet needs to be large enough to facilitate airflow. With a guitar cabinet, the open back would cause the assembly to literally rip itself apart. However, in a bass cabinet, a closed space provides a measure of air resistance to the moving speaker, particularly at lower frequencies when more strain is involved. Specifically, a device known as a port tube moderates the movement of air in the enclosure and thus backpressure on the diaphragm.
With a bass speaker, the grid is one of the most important features. As the cones are very large and can be easily damaged by debris, bass speaker cabinets utilize rigid metal grids to shield the diaphragm. Unlike woven mesh grids used in guitar amps that can break, bass amp grids are resilient and will handle all of the bumps and bruises while on the road.
In addition to the metal grid, the use of metal edges on the enclosure is vital. As the speaker enclosures are often stacked for better performance, the metal edges help stabilize the devices and prevent unnecessary wear and tear. In addition, the metal caps are great for preventing damage while moving the cabinets.
All in all, choosing the right speakers is as important as choosing the right amp when it comes to bass. By picking the right combination of sizes, you're sure to achieve the entire range of any bass in stunning detail.
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