Dawn,
I use a Peavey Envoy 110 with my Silhouette. It is small and easy to transport which I’ve found to be important. It has great volume if I’m playing by myself or with a small group, but I find it can get a little lost in a larger venue (like a bar/club). The clarity of sound is excellent due to the TransTube technology. If you are still looking, I would take your harp to a good amp store and try several amps. Like any solid body instrument, the Silhouette’s quality of tone and texture will vary from amp to amp.
Hope this helps 🙂