Best 12 Subwoofer

Best 12 Subwoofer. Secret Soul Sound.

Everything You Need to Know About Subwoofers

Posted on | December 13, 2009 | No Comments

Subwoofer refers to either a woofer, or a complete loudspeaker dedicated to the reproduction of bass audio frequencies, essentially from 150 Hz down to 20 Hz.

Subwoofers are useful for augmenting main loudspeakers by providing playback of low bass frequencies at high levels. Subwoofers are usable in several formats, together with bass reflex, acoustic suspension, infinite baffle, horn loaded, tapped horn and bandpass types. The range of sounds from lowest to highest that the subwoofer is capable of reproducing is called frequency range. The actual frequency range can vary depending on the type of box, crossover point, and the medium the subwoofer is installed in.

All loudspeakers characteristically exhibit trade offs between frequency response and response time or transient reply depending on the characteristics of the voice coil, properties of the magnetic motor, the cone mass, and the character of the enclosure.

The voice coil consists of a bobbin with wire wound around it. The voice coil is attached to the bottom of the cone and extends into the air gap surrounding the pole piece. The voice coil translates the magnet’s energy into cone motion. Cone size and voice coil inductance are main factors for a subwoofer.

Subwoofers use drivers woofers regularly in the middle of 8″ and 18″ in diameter, but some have been as large as 60″. Some drivers as small as 4″ may be referred to as subwoofers but drivers less than 8″ generally have neither the cone area nor excursion capability needful to produce deep bass, particularly in practical sized enclosures. The most common subwoofer sizes in professional concert audio are 12″, 15″ and 18″.

A brief history

The earliest subwoofer was industrialized during the 1960s by Ken Kreisel. Kreisel’s solution was to design a powered loudspeaker that would reproduce simply those frequencies that were too low for the electrostatic speakers to convey and how fill in the lacking sonic information. Infinity’s full range electrostatic speaker system of about the same time also used a subwoofer to cover the berth frequency range the electrostatic arrays did not handle adequately. Subwoofers came into greater favorite attention in 1974.

Applications of subwoofers

Subwoofers are used in different systems. The main areas of request include professional audio, home audio, car audio and many other fields. Subwoofers are now almost universal in professional sound applications such as live concert sound, churches, nightclubs, and theme parks. Professional audio subwoofers must be capable of actual high output levels. This is reflected in the design attention given in contemporary years to the subwoofer applications for sound reinforcement, public address, and concert systems.

A subwoofer does not necessarily furnish archimandrite bass carrying out in collating to colossal conventional loudspeakers on ordinary music recordings due to the lack of extremely low frequency content on such sources. Most house and car systems have much smaller and unequaled drivers at low frequencies; they attempt to reproduce actual low frequencies with colossal cone motions.

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