The short answer is, no. I think you'd be rather disappointed with that pairing off. Those Gallo's need some muscle to do their best, and, as good as the Sugden may be, 25 watts is just not enough to push an 88db speaker to satisfying volumes. If I were you, I'd be looking at amps putting out 50-100 watts minimum. I do like the Portal Panache, and it pushes my 89db Silverline SR17s without breaking a sweat. That's 100 wpc. I have tried the same speakers with lesser power and though they will play tunefully, they do run out of steam sooner, especially in larger spaces. There are many good integrateds out there in that price range that I'm sure would do well for you. You may also want to research compatibility with your speakers of the Unison Unico SE version, as well as offerings by Musical Fidelity, Creek and Audio Aero, among others.
Marco
Marco