Best Mini Diaphragm

AFI 10108 FullBlast Marine Dual Trumpet Mini Deck Air Horn (12-Volt, Chrome)

12V Chrome Plated mini dual trumpet air horn is made of solid brass construction with non-corrosive Lexan polycarbonate diaphragm.
Includes compressor, air tubing, fittings and hardware.
dB(A) rating: 127 at one meter, 1/3 octave band. Meets the ABYC and NMMA regulations for boats up to 20 meters/66 feet..
Fundamental frequency: 630+/-15, 525+/-15Hz.

Refined Fostex proprietary Regular Phase (RP) diaphragm driver using copper foil etched polyimide film and powerful neodymium magnet.
Maximum input level of 3000mW to comply with various professional uses.
Low repulsion ear pad and head pad for maximum comfort.
Comes with 3m 1/4-inch plug detachable cable for best serviceability and 1.2m mini plug cable for portable audio use.

Mini Bluetooth Speaker: Anything Speaker is up to 800% smaller than traditional Bluetooth speakers. Bone Conduction technology eliminates the large diaphragm so it's portable and lightweight!.

A diaphragm pump (also known as a Membrane pump) is a positive displacement pump that uses a combination of the reciprocating action of a rubber, thermoplastic or teflon diaphragm and suitable valves on either side of the diaphragm to pump a fluid..
In the pump two symmetrical working chamber each equipped with a diaphragm, the center link will be integrated into one. Compressed air from the pump inlet into the valve, through the valve body to introduce compressed air into one of the chamber to promote movement of the diaphragm chamber, while the other chamber gas emissions..
Once the end of the stroke is reached, the gas distribution mechanism automatically introduces compressed air into the other working chamber to push the diaphragm in the opposite direction so that the two diaphragms move back and forth in unison..
EXCELLENT CONSTRUCTION - Resists corrosion for reliable performance and long life. Bolted construction is designed for leak-free fluid handling. Easy access to ball checks and fluid caps for maintenance and repairs..
VERSATILE USE - The diaphragm pump with convenient operating are widely used in various industries, such as petroleum, metallurgy, mining, coating material, printing, paper making, water treatment, automotive etc..

Gasketed diaphragm alters its effective size and frequency response by simply changing pressure, bell-type low frequency response is achieved by simply holding the chestpiece in place with light pressure.
Firm pressure will produce diaphragm-type high frequency performance, sculpted chestpiece made from lightweight zinc alloy plated with an attractive satin finish, aluminum binaurals in satin finish.
Double leaf internal spring fixed at 15 degree angle for greater comfort, reinforced yoke molded into flexible 22" pvc "y" tubing.
Adsoft delux pvc eartips for the ultimate in wearing comfort and acoustic seal, sprare diaphragm included, scope id tag included.
The 614 pediatric chestpiece is sculpted with 1inch diameter diaphragm,diaphragm retaining rim color matched to tubing, inspected in the usa.

【INDUSTRIAL QBK-15】Material:Cast iron,aluminum alloy,Stainless steel.Inlet Port: 1/2 inch.
【EXCELLENT EFFICIENCY】Double diaphragm pump motor design delivers optimum air efficiency.Double Diaphragm:PTFE, Nitrile Rubber and Polychloroprene..
【RELIABILITY】 Diaphragm pump unbalanced air valve ensures no-stall operation.Air diaphragm pump good abrasion resistance, chemical resistance, and heat resistance..
【SAFETY】 Air diaphragm pump bolted construction for leak-free fluid handling..
【VARIOUS INDUSTRIES】Diaphragm pump can petroleum, metallurgy, mining, coating material, printing, paper making, water treatment, automotive and other chemical industries..

Award winning ergonomic design and excellent acoustic sensitivity deliver comfort and reliable diagnostic performance.
Tunable diaphragm responds with a simple pressure change to capture low and high-frequency sounds.
Anatomically designed headset is angled to meet the path of the ear canal.
Non-chill rim and diaphragm offers welcome patient comfort.Diaphragm Diameter 1.75 Inch Diaphragm Diameter (metric) 1.73 inches.
Latex free materials for allergy sensitive users.
Headset Material: Wide diameter aerospace alloy / Anodized aluminum.

30mm dynamic driver unit for clear sound - High energy neodymium magnets deliver powerful sound.
Slim, folding design for easy portability - Pressure relieving earpads for extended comfort.
Driver Unit: 30 mm, dome type (CCAW Voice Coil) - Type: Closed, Dynamic.
Sensitivity: 98 dB/mW - Power Handling Capacity: 1,000 mW (IEC) - mpedance: 24 Ω at 1 kHz - Frequency Response: 12 Hz – 22,000 Hz.
Cord: 1.2m cord (both sides) - Diaphragm: PET - Magnet: Neodymium - Cord: Y-type/Length: 1.2m - Plug: L-shaped Gold-plated 4-Conductor Stereo Mini Plug - Weight (Without Cord): Approx. 120 g..

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