Frequently-Asked Questions about DXI

Do you sell locomotives with WOWSound already installed?
Yes, we sell brand new locomotives with WOWSound installed. They are new, old stock locomotives. Click here to browse our selection.
How long does it take to get my locomotive completed?

Locomotive installs are completed in the order they are received. Most orders are completed in two weeks, but this varies with the amount of orders received. You will receive email updates along the way so you can keep track of your order.

You will be notified by email when:

  1. You place your order.
  2. We receive your package.
  3. We are working on your installation.
  4. When your install is complete.
  5. When we have shipped your locomotive. We will include a tracking number for your shipment.
What if my locomotive is not on your website?

We will perform a WOWSound installation on any non-brass, HO scale locomotive for a flat rate of $165. If you have an engine that is not yet included on our website, you can add the Standard DXI Installation item to your cart. Feel free to email to discuss custom installations before placing an order.

Do You Perform installations on Brass Locomotives?

Yes, we perform installations on brass locomotives.

Why do you install Keep Alive® Devices in every installation?

Keep Alive® devices are an essential addition to any sound decoder installation. They keep current flowing over dirty or faulty track so that your locomotive sound is not interrupted. Nothing’s more annoying than having your sound continuously cut out and re-start when you’re trying to operate!

We include a KA device in every install as part of the $165 flat rate!

Price &


What is included in the price?
Parts, labor, and return shipping are all including in the $165 cost. You will have a WOWSound decoder, motherboard, Keep Alive®, lighting, speaker, speaker enclosure installed and tested in your locomotive all neatly and professionally installed. We use lacing cord in our installations to neatly bundle and harness all wires making a top notch installation!
How do I place an order?

Place an order by selecting “standard installation” or select from our documented installations and click “Add to cart.”  
Due to our dedication to providing the best service to you, we do not typically take orders via phone.

What payment options are accepted?
We only accept payment using credit cards. All major credit cards are accepted.
Credit card and billing info will be requested at checkout.
We do not accept payment in the form of cash, checks, or money orders.
How should I send my engine?

If possible, please use the original box, as well as a second box that is well insulated with packing materials to ensure the safety of your locomotive.

All orders can be mailed (USPS) or shipped via UPS or Fedex to the address specified on your order confirmation page and in the order confirmation email. Please do not send “Signature Required,” we are not always available to sign. We use a secure lockbox so your locomotives remain safe.

While we take the utmost care in the handling and shipping of your locomotive, we cannot be responsible for lost or damaged parts while in for an installation. If a locomotive arrives with any damage present, we will document it.  

Do you pay for shipping both ways?
We do not pay for shipping to send the engine to us, but we do provide FREE return shipping!
Do you connect the lights?

Yes, connecting all the original lighting is included in the $165.00 flat rate service. We will connect additional lights and provide custom lighting options as add-on services.

If your loco has front or rear Ditch Lights we connect them and make them operational blinking lights. If your loco has front and rear headlights we connect them. If your loco has number board lights we connect them.

Remember: We connect and power all the original lighting as part of the included installation.

Do you use the original 1.5volt bulbs for Athearn Locomotive installations?
Yes, WOW sound motherboards have onboard 1.5volt regulated power supplies to easily and cleanly accommodate original Athearn 1.5volt lighting bulbs.
Do you replace bulbs with LED's?

Most the time we do replace 12volt bulbs with LEDs. This is decided by us at time of installation on a loco by loco basis and will incur a $10.00 per bulb add on charge. An exception to this is Athearn — see above.  

Do you offer custom lighting options?
Yes! We now offer many custom lighting options for your locomotives as add-on services.
Do you do steam decoder installations?

Yes, we install WOWsound using TCS WOWkits for all steam models.

Do you do N scale or large scale sound decoder installations?

As a general rule, we stick to performing installations on HO scale locomotives. We have made some exceptions in the past – please contact Ken to discuss options. 

Do you do non-sound decoder installations?

Yes! We now offer non-sound HO scale installations for all HO scale locomotives.

Still have questions?

Just ask.

For any other questions, please email us at or call us at (267) 680-4298.