Write a review Your name* Your e-mail* (Not for publication) Rating ★★★★★ Excellent ★★★★☆ Very good ★★★☆☆ Average ★★☆☆☆ Poor ★☆☆☆☆ Terrible Your review * * — Required information Spectrum Design Group, LLC ← View details 601 West University Avenue, Champaign, IL 61820 +1 217-359-1771