A Class - Crossley Sound Decoder — Irish Railway Models Skip to content

A Class - Crossley Sound Decoder

Original price $172.00 - Original price $172.00
Original price
$172.00 - $172.00
Current price $172.00
in stock, ready to be shipped
LokSound V5 DCC Sound Chip

Designed specifically for the Irish Railway Models A Class locomotive, this decoder works seamlessly with the onboard lighting, PowerPack stay-alive system and dual speaker configuration to reproduce the characteristic sound and function of an Crossley engined A class at work.

This chip is the perfect companion for the Crossley Engined versions.


The LokSound 5 decoder can reproduce up to 10 channels simultaneously. Each channel offers up to 16 Bit / 31250 kHz and thus we have finally achieved hi-fi sound quality on your layout. For all practical purposes one cannot detect any difference to the original. A class D audio power amplifier with up to 3W output power feeds the speakers with a permitted impedance of 4 – 32 Ohms. The huge 128 MBit sound memory assures sufficient storage capacity.

The volume of all individual sound fragments may be adjusted separately. The outstandingly flexible sound engine without a rigid flow chart facilitates a prototypical simulation of all conceivable rail vehicles. Three separately adjustable braking functions and two alternative load scenarios provide you with maximum control of your vehicles.


We are quite aware that you want your locomotives to be as realistic as possible. Therefore we have packed many function outputs into it.  Subject to the type of interface every LokSound 5 has at least 10 amplified outputs. The decoders with PluX22 or 21MTC interface have an additional 4 outputs for controlling servos or as logic outputs. Of course, all important lighting functions are supported. The brightness of each output may be adjusted separately. The decoder supports the automatic push and pull movements – known as the coupler waltz - required for reliable operation of digital couplers such as the ones by ROCO® and Krois® as well as Telex® couplers.

Motor control

Motor control of the LokSound 5 has been further improved. A variable PWM pulse frequency ranging from 10 kHz to 50 kHz assures perfect silent operation, particularly for coreless motors. Thus the typical hum is a thing of the past. Load control can now be adjusted with up to 10 separate CVs and thus will manage even the most difficult cases. The unique “Auto Tune” function facilitates the automatic calibration of the decoder to perfectly match the motor. The LokSound 5 decoder supplies up to 1.5A motor current, which is quite sufficient even for older motor types.

Customer Reviews

Based on 34 reviews
Tim Luckhurst-Matthews
Crossley DCC Sound Decoder

Excellent sound files - I agree with another reviewer that the only thing missing now is the huge amount of clag from the exhaust as the loco works hard !

Ríoch Cogan
Crossley decoder

Just perfect


Excellent sound and at a good price too.

David Heath
Irish Railway Models Crossley Sound decoder

Very pleased with the above


Super quick postage, the decoder arrived the next day after ordering. It sounds fantastic! Thanks IRM for creating superb models and for getting the accompanying decoder sounds just right, James

Thomas Ryan
A class Crossley sound decoder.

Having placed this in A46 it is very good and it's as I remember the Crossley sound when I used to see them climb out of Cork with the goods trains. All your short is the smoke ! Well done IRM.

Mark Dunlea
Superb service

Thanks for dealing withe issue with the decoder.Much appreciated Mark

Michael Murphy
Crossley A sound Decoder

Great to have such quality

Chris Harvey

Very pleased with the A class Crossley Sound Decoder which arrived less than 24 hours after ordering it. As always 'A Class' service and communication from IRM.

David D
A Class - Crossley Sound Decoder

Excellent sound and quality.

Compare products

{"one"=>"Select 2 or 3 items to compare", "other"=>"{{ count }} of 3 items selected"}

Select first item to compare

Select second item to compare

Select third item to compare