DYNALEC LS-387/SIC 61716-200 SHIPBOARD LOUDSPEAKER, GRAY, INTERNAL VOLUME. Approved Parts List Numbers. Designed to provide clear and intelligible reproduction of speech and alarm signals. Lab-tested to demonstrate survivability and operability after exposure to multiple gun blasts and to the stresses common to sea-going vessels, such as humidity, salt spray, temperature, shock, and vibration. Compatible with all 70 volt audio systems. Volume is determined by internal wiring, and is set at the time of installation by selecting the appropriate secondary tap on the unit’s output transformer. Each tap increases or decreases the volume level in 6 dB steps between -24 dB (Tap 5) and full volume (Tap 1). A similar item is available with an external switch to select the output level (61716-201). Speaker assembly includes the loudspeaker driver assembly, and audio line matching transformer, and an internal terminal board. Enclosure is of aluminum construction and is designed for bulkhead mounting. See the Supplemental Information section of this page for the typical Frequency Response Curve for these loudspeakers. The item “DYNALEC LS-387/SIC 61716-200 SHIPBOARD LOUDSPEAKER, GRAY, INTERNAL VOLUME” is in sale since Wednesday, October 27, 2021. This item is in the category “Collectibles\Transportation\Boats & Ships\Military\Other Naval Collectibles”. The seller is “componentcentralinc” and is located in Stanton, California. This item can be shipped to United States, Canada, United Kingdom, Denmark, Romania, Slovakia, Bulgaria, Czech republic, Finland, Hungary, Latvia, Lithuania, Malta, Estonia, Australia, Greece, Portugal, Cyprus, Slovenia, Japan, China, Sweden, South Korea, Indonesia, Taiwan, South africa, Thailand, Belgium, France, Hong Kong, Ireland, Netherlands, Poland, Spain, Italy, Germany, Austria, Bahamas, Israel, Mexico, New Zealand, Philippines, Singapore, Switzerland, Norway, Saudi arabia, Ukraine, United arab emirates, Qatar, Kuwait, Bahrain, Croatia, Malaysia, Brazil, Chile, Colombia, Costa rica, Panama, Trinidad and tobago, Guatemala, Honduras, Jamaica, Antigua and barbuda, Aruba, Belize, Dominica, Grenada, Saint kitts and nevis, Saint lucia, Montserrat, Turks and caicos islands, Barbados, Bangladesh, Bermuda, Brunei darussalam, Bolivia, Ecuador, Egypt, French guiana, Guernsey, Gibraltar, Guadeloupe, Iceland, Jersey, Jordan, Cambodia, Cayman islands, Liechtenstein, Sri lanka, Luxembourg, Monaco, Macao, Martinique, Maldives, Nicaragua, Oman, Peru, Pakistan, Paraguay, Reunion, Viet nam, Uruguay.