4inch (100mm) Loudspeaker

This loudspeaker is especially well suited for use in RC Models, especially RC airplanes and helicopters due to its very high sensitivity. It has been carefully chosen for the best balance between sensitivity, power handling, weight and frequency response.

What's New:

May 14, 2021

New Hercules AC130 gunship sound set now available bringing our total airplane sound sets to 120.

February 17, 2021

New Airbus A380 sound set now available bringing our total airplane sound sets to 119.

January 26, 2021

New 5.1.1 release of ShockWave 3 firmware and Software. Exciting new features - Afterburner light controller + automatic sync. with Afterburner sound and much more.

January 06, 2021

New Aero Vodochody L39 Albatros Jet Trainer sound set now available bringing our total airplane sound sets to 118.

January 01, 2021

New Article - Integrating Afterburner Light Sets with ShockWave 3.

August 01, 2020

USB SD/microSD card reader now included with ShockWave 3 sound module and all ShockWave 3 sound systems.

4inch (100mm) Loudspeaker

Drawing/Dimensions

Directivity

Frequency Response

Name : 4inch 20 Watt 4 Ohm loudspeaker

Item Number : LS4IN-20W-4
Size : 102mm x 102mm x 36mm (4" x 4" x 1.4")
Weight: 162 grams (5.7oz)
Frequency Response : 150-13000 Hz
Sensitivity : 90dB/1W/1m

USD$22.99

ONLY Canadian and US Customers
can use the Add To Cart Button.
For all other countries please email us at contactus@modelsoundsinc.com for a shipping quote.

Highly recommended for model airplanes and helicopters -
90dB/1W/1m Sensitivity, light weight - 162 grams (5.7oz)

This German engineered loudspeaker sounds terrific, yet is shallow and weighs only 162grams. This fine loudspeaker can handle 20 Watts continuous, 30 Watts peak.

The 8 Ohm version is suitable for our ShockWave 2 sound module on supply voltages up to 18 Volts. It can also be used with the ShockWave 2 module on its maximum supply voltage if you turn the volume control on the module down to 3/4 to limit the maximum power output. The 4 Ohm version can be used with our ShockWave 2 sound module with no more than a 4S LiPo battery. battery. The 4 Ohm version will give double the output power of the 8 Ohm version at this voltage.

Our loudspeakers can be ordered by new customers only at the same time as ordering a sound module from us, or by existing customers later who have already purchased a sound module from us.

If you wish to use the ShockWave 2 module on its maximum supply voltage AND you wish to get maximum volume out of it, then two of these 4 Ohm speakers wired in series should be used to get a net 8 Ohm impedance and a 40 Watts power handling capacity - See Wiring Loudspeakers .

When two of these speakers are used in series, the output level from our ShockWave 2 sound module (on 26Volts) can be around 107dB. This was measured with the speakers in open air. When housed in a small enclosure, the sound level will be even higher.