Dr. Z DB4 Promo - Brad Paisley
Dr. Z DB4 Demo - Dave Baker
Matt's Music - Dr. Z DB4 Amp demo
Dr. Z Amps Overview with Brad Paisley
Brad Paisley's Live Amp Rig: How Versatile Is It For Other Styles? (Dr. Z Z-Wreck & DB4)
Dr Z DB4 Clean Settings
Brad Paisely DB4 DRZ tone
DrZ DB4 Les Paul Raw Power Clean and Overdriven Tones
DRZ AMP DB4 Brad Paisley Tone
The Legacy of Dr Z! The Most Important Amp Builder of the Century?
Therapy demo - Brad Paisley
Dr.Z DB4
Celestion Alnico Shootout: Gold, Cream & Blue (in Dr Z DB4)
Dr Z Carmen Ghia Demo - Dave Baker
Dr Z Z-Wreck Combo Demo - Dave Baker
Dr. Z Cure - Teaser Demo w/ Dave Baker
Dr. Z EMS "Bluesbreaker" Combo Demo
Dr Z Z Wreck demo with Brad Paisley
Dr. Z AMA: "All about the new NOVA!"
Dr. Z Z-Master Amp Overview With Joe Walsh