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Accurathrash Class 55 'Deltic' Loksound DCC Sound Decoder

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LokSound V5 DCC Sound Chip

Designed specifically for the accurascale Class 55 - Deltic 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 Deltic  at work.

Common Features:

  • The LokSound 5 decoder works for analogue DC and AC (!) layouts.


    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 40 reviews
Irene H.
For installation in O Gauge Loco

Bought module with a view to installing in O Gauge Loco currently still in production but seriously delayed due to China lock down + had to purchase additional break out pcb as loco's will not be DCC ready i.e. Analogue only.
That being said I have just completed my evaluation of the module comparing it with a similar but higher motor current ETS module with Legomanbiffo sounds and to me this sounds better with lots more lighting options, not that I will use them all but who knows + there are more sound effects so all in all my verdict is a great product.

Sounds Amazing

Having bought a non-sound Deltic from the Locomotion Models it sounded a bit tame compared to my sound fitted models direct from Accurascale. This and the Accurathrash speaker sorted that.
Not the easiest to fit as the Deltic body is not the simplest to get off without damage, but with a bit of care (and sticking the chains back on) all was good, and KOYLI now stands up well against the others.

Antony B.
Worth the wait

Having managed to order 3 Deltic's from the first production run (all DCC ready). I was desperately waiting for these to come back in stock, and I'm so glad I waited to get this along with the Accurathrash DCC Sound Speaker. Fitting was a breeze and the sound is super. Thankfully my order from the the second production of Deltic's will have this pre-fitted.

Tim L.
Accurathrash decoders

The subtleties of the sound files on these are excellent and evokes so many memories of the real thing in service for those of us of a certain age !

Jon L.S.

Decoder is great, well packaged but then it should be as postage was 25% of the cost of the decoder!

Richard B.
Accurascale Deltic with DCC sound

Very easy to fit the LokSound 5 DCC chip into an Accurascale Deltic. Sounds are absolutely superb and compliment the Accurascale Deltic model very nicely!

Carl B.
New fitted class 55

Once I’d managed to remove those dreaded chains the body came off easily. The chip fitted perfectly as did the speaker.

Steven S.
Great Value - Adds another dimension to your model

Decoder great value for a V5 dcc sound chip including delivery and sound file. Chip easy to fit. Adds another dimension to your model...!

Jonathan H.
Deltic delight!

Thank you Accurscale for my Deltic sound decoder after it got lost in the post, fantastic customer service from you. I have been waiting for so long for this and it doesn’t disappoint, love the sound functionality plus the engine room lights and how even the second man’s instrument panel lights up it just fantastic!

John A.
Dcc sound chip

Absolutely brilliant, so easy to use. Gave it it's first run out at the club today, very satisfied