The MR RC Sound V4 Ultra

An RC sound generator for the larger airplane. Light weight and speaker less sound generation. A 4-transducer system. Safe and secure payments through PayPal.

The Mr RCSound Ultra unit

Now available with the latest TT-25 transducer for a completely speaker less installation! Reduced weight and better sound quality! We do not have photos of the transducers used in the Ultra unit yet but for more information please click here.


Now we have a system for the larger RC airplanes.  Your large scale RC airplane or RC warbird can now SOUND as well as LOOK like the real thing!

Imagine the super scale effect that can now be created. You can start out, in the pits with the command "Clear" issued from your plane and then advance the throttle a little to give the authentic engine start-up sound. Slowly taxi to the end of the runway and then slowly advance the throttle, until at full throttle you gently lift off with a full throated roar!

Using the auxiliary sounds available you can drop bombs and use you guns and strafe the runway!

Please note that MR RC Sound units are no longer available!

The V4 Ultra unit specifications:

  • For large scale RC electric powered planes with a wingspan greater than 67in. (1700mm)
  • 6 selectable engine sounds: Lycoming, Pratt & Whitney Double Wasp, Merlin, Continental, BMW and a generic turbine plus auxiliary sounds.
  • Use with 2.4GHz radios ONLY. 72 MHz systems are prone to interference from the amplifier!
  • 4- TT-25 transducers
  • 1-V4.1 board and a second amplifier and voltage regulator..
  •  Full installation instructions.
  • Fully assembled and tested. (Just solder in your favorite motor connector 'Y' harness)
  • Uses the existing flight battery with little effect on flight time.
  • The ultimate system, with 4-transducers!
  • Other engine sounds available, by changing the sound pack.
  • Some sounds are close to 120db at 1M.
The Mr RCSound Ultra unit

The V4.1 version of the basic module is now expandable to the full Ultra specs, so you can start of with the V4.1 and later expand it to a Ultra system! Click here for more details of the V4.1

If you wish to upgrade to an Ultra and already have a V4.1, you will need to buy the following items-

Ordering information for the V4.1Ultra RC sound unit: 

  • The RC aircraft sound units are hand made by Mr RC Sound Systems, in the USA by the inventor Andrew Lawrence.
  • RC Airplanes Simplified is a reseller of these systems and any questions regarding the units or for shipping details Contact us
  • If you order through this site, you will receive an e-mail order receipt from PayPal.
  • Shipping is by the USPS and for the Ultra unit is FREE! This applies to the USA, but can also be applied to international shipping. In that case delivery can take 2-3 weeks and there is no possibility of tracking.
  • The Mr RC Sound modules are recommended to be used with 2.4GHz radios only!
  • Please note that you DO NOT need a PayPal account. You can pay for your RC sound system with your credit card via PayPal. Just click the "Add to Cart" button.
  • The details below are taken directly from MRRCSound site-

Shipping inside the US will be done by USPS flat rate box shipping. Cost is a flat $13, which is the actual cost of shipping and materials in most cases. No padding the price on shipping for these RC plane sound systems.
For international orders, I can ship to most any country for the $13 included on the purchase price. Shipping will be done vie US Postal Service First Class Mail. There is no tracking with this service, and shipping times vary, and may be up to 2 weeks, but it is cheap. If you require faster shipping, please contact me and we can arrange it for the actual shipping cost.

Shipping will be done twice a week, this allows me time to pack them up and get them to to the postal service. Remember these are all done by hand, by me. Shipping days will be Fridays, and Tuesdays, and may be subject to change.
MrRCSound is not responsible for long shipping times due to either US customs or other countries customs holding the shipment. This rarely happens, but if it does it can significantly delay international orders. MrRCsound is not responsible for lost packages/orders, or packages/orders that may have been delivered to the incorrect location. Once a package/order has shipped, it is the responsibility of the US Postal Service, International Postal Service or other courier to properly ship and deliver the package /order. Lost or incorrectly delivered packages should be followed up with the proper courier. MrRCSsound will make every effort to try and help locate a missing package/order with the courier, but in the end it is the courier's responsibility, and do not qualify refunds or replacements directly from MrRCSound, or any Reseller/Affiliate .

Please note that MR RC Sound units are no longer available!

A Customer's comment:

Jeff: "The other day I was in the garage with my sound unit, I had the sound on maximum.  after changing the engine type twice my neighbor came over because he said he though for sure I had finally gotten a real plane."