This RC sound unit use's no speakers and features today's technology to give the most accurate and loudest sounds possible! Light and small for your RC airplane!
The Aspire has been introduced by MRRCSound. This is the third iteration of RC sound units designed and built by Andrew Lawrence, in the USA.
Sound units by the hundreds have been shipped all over the World for the last 4 or 5 years and electric RC fans have been delighted with the realistic sounds generated.
When you fire up your latest creation, in the pits, the reaction from other flyers can be very dramatic! I know because I speak from experience of being surrounded by flyers with all kinds of questions about this superior RC sound system.
The Aspire produces true scale sound from start-up, through idle and up to full throttle. I love it when I taxi back to the pits, after a good flight and reduce the throttle to the stop position and hear the "engine" spit and pop to a standstill!
Please notice that there is no speaker! The TT-25 transducer, when properly mounted, makes the airplane into a speaker. No sound outlet holes are required.
You can build your own power connector, to suit the battery connections you use. Obviously you must be able to solder well, but for those of us who are not so hot at soldering or just plain lazy, you can buy adapters for the most popular types.
If you use the popular T-connector ( Also known as "Deans"), simply plug the battery into the left side of this pass through and connect the male side to the ESC lead. Connect the male JST connector to the Mr RC sound unit.
Price of the T connector to JST male- $6.99US plus $1.50 US for shipping
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This is a heavy duty Y-connector. It will fit JR, Spektrum, Futaba and many more radio systems. You can buy one from your local hobby shop or if you "Click" on the photo or here, you will find yourself at the Amazon site. Check prices, including shipping before you buy.
Note that parts supplied are marked with a " *"
Treat this just as if it were a receiver. You can use the included velcro tape or a velcro strap, mounting to the model, with a piece of foam rubber sandwiched beneath the unit.
Double sided foam tape can also be useful.
If you are using a foam model, Then the transducer can be mounted direct to the inside of the fuselage.
In my Freewing Mosquito, the fuselage sides are curved, so I epoxied a piece of foam, curved on one side (by sanding) and flat on the other. This gave a flat surface for mounting the TT-25.
I prefer to remove the self adhesive that is on the mounting surface and use 5 minute epoxy to glue the transducer to the foam.
For conventional construction (Balsa and ply) I have used a piece of 1/8" thick foam (Purchased from the Dollar Store) and glued this rectangle to the inside of the covering and then the TT-25 to this. This has worked well on my E-Flite Beaver.
Please note that in the photos below, the sound module is the earlier V4.1 The Aspire can be mounted in the same way.
If you want to stop the "sliding" and look at a photo longer, just click on the image.
For the older V4.1 RC sound unit, It is necessary to power up the receiver first and then the RC sound unit. This is required because the sound module needs to know where low throttle position is. Make sure your transmitter throttle stick is at the lowest point, along with the throttle trim, before turning it on.
The Aspire RC sound unit does not really need this receiver sequence, but it is recommended.
All of this means that a switch could be used, in the unit power line, or the JST connector must be accessible.
So the start-up sequence should be-
I like to set up my system, so that as soon as I start to taxi, I advance the throttle trim fully. When the flight is over and I am returning to the pits, I can stop forward movement of the RC airplane and then reduce the throttle trim. The sound module then goes into the shut-down sequence. Very realistic!
When working on the bench, setting this up, do remove the prop, for safeties sake!
I have used a switch on my 1/4 scale cub, in fact if you look at the photo, you will see 2 switches. I use a separate battery for the radio system,(No BEC on the 100A ESC) so I switch on the radio system first and then the RC sound system.
Andrew (The designer and builder) has just completed this video and he shows all the features of the Aspire RC sound unit. It is quite a long video but well worth a look.
The V4.1 is the unit previously offered. It is still available at a much reduced price! Click here for more details.
The V4.1 is an excellent unit and I own 3 of them myself and they have given me excellent service and very realistic airplane sound effects.
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 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 us 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 .
Some of the links on this page are “affiliate links.” This means if you click on the link and purchase the item, I will receive a small affiliate commission. There is no extra cost to you. Because my integrity and your satisfaction are very important to me, I only recommend products or services I use personally or would purchase, and believe will benefit my readers. This income is used to help pay for this site. I am disclosing this in accordance with the Federal Trade Commission’s 16 CFR, Part 255: “Guides Concerning the Use of Endorsements and Testimonials in Advertising" For further information, please click here.