4inch (100mm) Loudspeaker

This loudspeaker is well suited for use in smaller RC Models, especially RC boats, due to its high sensitivity an water resistant cone. It has been carefully chosen for the best balance between sensitivity, power handling, weight and frequency response.

What's New:

February 15, 2022

New Learjet 35-70 executive jet sound set added bringing our total airplane sound sets
to 123.

November 06, 2021

New Shelley Foss Tugboat sound set added bringing our total boat sound sets to 75.

September 27, 2021

New RNL Tamar Class lifeboat sound set added bringing our total boat sound sets to 74.

September 05, 2021

Many Battleship/Warship sound sets added bringing our total boat sound sets to 73.

3.3inch (84mm) Loudspeaker



Frequency Response

Name : 3.3inch 20 Watt loudspeaker - 4 Ohm

Item Number : LS3.3IN-20W-4Ohm
Size : 84mm x 84mm x 29mm (3.3" x 3.3" x 1.14")
Weight: 240 grams (8.5oz)
Frequency Response : 200 5000 Hz
Sensitivity : 89dB/1W/1m


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.

4 Ohm Version

Highly recommended for model boats due to its smaller size and water resistant cone, it can also be used in airplanes, helicopters and tanks - 89dB/1W/1m Sensitivity, but heavier weight - 240 grams (8.5oz)

This German engineered loudspeaker sounds great, yet is very shallow and weighs 240grams (8.5oz). This fine loudspeaker can handle 20 Watts continuous, 30 Watts peak.

This 4 Ohm speaker can be used with our ShockWave series sound modules with no more than a 4S LiPo battery. If you wire two of these in series, the sound module can be powered on its maximum battery voltage of a 6S LiPo for maximum sound output.
See Wiring Loudspeakers.