Speaker Manufacturers. Piezo, Speakers, Buzzers Vendors

Chart of Impedance for Piezo vs. Magnet Speaker

Hardware
Mechanical Components

Speaker Manufacturers

This is a listing of Speaker manufacturers and Vendors.
The types of products or devices they produce are listed under the company name, in alphabetic order.

Companies making speakers
CUI
{Alnico/Ferrite Magnet-Low Profile Speaker Manufacturer}

Floyd Bell Inc
{High reliability/High output piezo electric alarms}

International Components Corp. [Intervox]
{Piezo, Speakers, Buzzers}

Merry Electronics Co. Ltd
{Dynamic telephone receivers-Miniature speakers and microphone cartridges}

MISCO
{Speakers listed by Industries. Custom loudspeaker Manufacturer}

Bogen Communications Inc.
{Orbit Ceiling Speaker, Rock Landscape Speaker, Ceiling Speaker, metal Box Speakers,
Wall Baffle Speakers, Drop-In Ceiling Speaker, Horn Speakers, Bidirectional Horn, Sound Columns}

Electromagnetic Speaker Diagram

Loud Speaker

Piezo speakers offer faster response then magnet speakers because of their lower mass [no voice coil].
Magnet speakers are less efficient then piezo devices because of the loss via the voice coil.
The impedance of piezo devices decreases with frequency, it appears as a lossy capacitor.
Because of the difference in impedance over frequency between magnet and piezo speakers, care must be taken in matching them with an amplifier.
An amplifier designed to drive a magnetic speaker may have trouble driving a piezo device if the amplifier has a dynamic range above 100kHz
[because the impedance drops very low].

MIL-DTL-12606E: Permanent Magnet Loudspeaker (Unencased, 3-inch and 4-inch Diameter Cone, 2-WATT;
Fungus and Immersion Resistant, Type LS-445/U, M12606-01, AND M12606-02

Diagram of Electromagnetic and Permanent Magnet Speakers [on the companion site].

Piezo-Electric Definition, or Horn Speaker Definition

This is a listing of Speaker manufacturers and Vendors. Primarily a listing of speakers with out cases, just the physical speaker.
The types of products or devices they produce are listed under the company name, in alphabetic order.
Additional component manufacturers may be found by selecting the Components icon below, Equipment manufacturers by selecting the OEM Equipment icon.
Computer speaker sets are listed on this Computer Speaker Manufacturers page.
Definitions; Midrange Speaker, Tweeter, and Woofer


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