Yep. Speakers are HUGE. I wasn't completely happy with 2 Vintage 30s for my Bogner Shiva. I decided to change 1 out for a Classic Lead 80 and I couldn't be happier. It's more balanced, more powerful (it's 80w instead of 60w) which means the cleans stay cleaner at higher volumes than before (bass stays tighter than before) and it crunches nicely when overdriven.
The Vintage 30 is a nice speaker, but it has a lot of mids and treble response which is good for an amp that is dark or focused on low mids like Bogners, but can be too harsh and bright for others. The Triamp will not sound good with bright speakers.
I didn't like the Silver Bell/Blue Dog speakers with my Triamp. Do whatever you want with your money, but I'm telling you flat out, those speakers do not make the amp sound smooth.