Class 20 Sound Pack (Pro)

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Armstrong Powerhouse presents a Pro sound pack for the class 20 diesel locomotive.

How is a Pro sound pack different to a standard one?

If a sound pack is classed as being Pro, it means that most, if not all, of the sounds used have been recorded using state-of-the-art equipment at an especially organised recording session. This allows us to acquire the exact kind of sounds we require to create the best experience within the simulator. In the case of this pack, all sounds were recorded from 20087 at the East Lancashire Railway. As well as excellent audio quality, Pro packs include separate cab and exterior sounds because as anyone who's been in the cab of a locomotive knows, there is really quite a difference! Finally, all efforts have been made to make sure the sounds are as realistic as possible. One way we have achieved this is by employing realistic volume levels which means that the volume differential between idling and full power is prototypically large so as to make you really feel the power of the engine when it revs up.

What is exactly featured?

Ticking spirax valve

Engine start up/shut down

Varying engine rev-up sounds depending on how much you move the power handle

Field divert sounds at a variety of power handle positions

Subtle traction motor hum can be heard in the cab as you pick up speed

If the power handle is shut off sufficiently, the engine note will cut out as per reality with only the winding down turbocharger audible

User operable two-tone horn using the space-bar and 'B' key


Separate cab sounds

Bogie run sounds to give the sensation of movement

Brake release/application sounds

Brake rub

Brake squeal

Flange sound

Cab instrument sounds

Jointed track sounds (Bo-Bo 2-axles)

Realistic sound fading effects

Accurate volume levels. This means the quietest sounds are as quiet as they should be in relation to the loudest as per reality.

During the installation process, this pack will be applied to the packs listed beneath the 'Essential Requirements' heading towards the bottom of this page. Below is a video demonstrating the pack:

As well as the sounds, a 70 minute scenario is supplied for the DTG London to Brighton route which sees you drive a speedlink service between Crawley New Yard & Latchmere Junction (Clapham Junction) in 1988. To ensure the most realistic experience possible, it uses the timetable of the year it's based in which means you'll be in store for plenty of AI traffic as you weave between the busy south London traffic. The perfect way to test these sounds out.

This add-on is supplied in download format only.

If you have a problem with this product, please use the contact us button at the bottom of this page and we will try our best to fix it.

Essential Requirements

JT Class 20 Advanced Collection - More Information


DTG BR Class 20 - More Information


DTG BR Blue Class 20 - More Information


DTG BR Railfreight Class 20 - More Information

Scenario Requirements

Please note that these items are only required if you would like to use the scenario supplied with this pack. If you only want to make use of the sounds or perhaps use them in your own scenarios instead of the included one then these items are not required.

Extra Stock  - Download

Digital Traction British Railways Wagons - More Information OR Digital Traction Wagon Pack 1 - Discontinued

DTG BR Class 33 - More Information

DTG BR Class 73 'Gatwick Express' - More Information

DTG BR Class 421 - More Information

DTG BR Class 423 - More Information

DTG London to Brighton - More Information

DTG Settle to Carlisle - More Information

JT Cargowaggon IWB - More Information

JT Class 20 Advanced Collection - More Information

Thomson Interactive Class 455 - More Information

Brands Armstrong Powerhouse
Product Code: APC20SPP
Availability: In Stock
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