I went into Guitar Village, in Farnham, for a look today.
They had a Trace Elliot 1x10 cab there, so I asked if I could try it, as I have an Elf.
The assistant (who was wearing a Trace Elliot shirt) said the only amp they had was a combo which was sat on top of it, to which I pointed out that that wouldn't work very well, as it had its own speakers too; he said there might be another one in another room, but really that combo was it.
I don't believe that they didn't have another amp head in the shop, but they plainly couldn't be bothered.
I said don't bother.