Bachmann class 37 (21 pin version) with a new ESU 16x35x11 passive radiator speaker & ESU HIFI sound

I like to edit my videos a bit more so they are a bit more slick, and less shaky! But I was blown away by how good this 37 sounded, so wanted to get a video of the sound on the test track, as soon as it was ready.
The clicks at the end are the spirax valves which play as a random sound when it’s not moving.
Find the speaker here www.roads-and-...
It’s a massive upgrade for loads of models.

[@Madonsteamrailways]

What an awesome sound that makes!!

[@1701_FyldeFlyer]

Sounds awesome.

[@HorstKlemmer]

Just amazing 😍

[@jamescorr6295]

Yep sounds amazing!

[@markjordan1530]

I like this, Don't think they will fit my Heljan 47 where I was looking for more bass but I am thinking of adding a Dapol 68 and due to the "throbbing" nature of that loco's sound I reckon one of these might do the job. Would love to hear an example.

[@mickking1783]

It’s a fantastic free file. I’ve reblow none of my V5s with an em1 in the tanks.

[@cellarton]

It's the ESU Hifi sound file isn't it? Fantastic!

[@roadsandrails]

It is, its a great sound file

[@albertoubaldi1301]

Hi Richard , it does sound great Does this speaker fit the new Bachmann 37's and if do where ?

[@roadsandrails]

Probably not, I've not been in one for a while though

[@andressanchez4517]

What are the self tappers for?

[@markkershaw5747]

What does it mean by ‘passive radiator’?

[@roadsandrails]

There’s a part on the speaker enclosure that looks a bit like a second speaker, but it’s just pushed by the movement of the other speaker driver, and it creates more bass

[@markkershaw5747]

Thanks