The Junebug originally began as Nolatone’s Tweed Princeton type amp, but soon took on it's own unique character and sound. After a number of different modifications, the final design was a little amp with a great range of sound. It features two channels, a clean and an overdrive. They share the first preamp stage, tone, and volume controls. The clean channel is similar to the one you’d find on a small tweed amp, but it has more headroom. The overdrive channel features three cascaded gain stages, a hot gain control, and a sweet gain control. The first of these extra gain stages provides a more vintage / bluesy tone, while the other has more bite to it.
The June Bug uses a JJ 6V6 power tube and two 12AX7s/ECC83s for the preamp. The rectifier tube is a 5Y3GT. It comes in a 1x10 cabinet, and the speaker is mounted on an adapter ring so you can unbolt it and replace it with a 12 inch speaker. This can make it usable with different size gigs.
You can add a 12 inch speaker for $50, a serial effects loop for $50, or an oversized cabinet for $100. The June Bug usually retails for $1,199 before these additions.
For more info be sure to check out the Nolatone website: http://www.nolatone.com/junebug.html
Here's a couple nice little demos of the Nolatone June Bug