Dr. Z DB4 Demo - Dave Baker
Dr. Z DB4 Promo - Brad Paisley
Matt's Music - Dr. Z DB4 Amp demo
Brad Paisley's Live Amp Rig: How Versatile Is It For Other Styles? (Dr. Z Z-Wreck & DB4)
Dr Z DB4 Clean Settings
Dr. Z Amps Overview with Brad Paisley
DB4 demo - Paul (6strang)
Brad Paisely DB4 DRZ tone
Celestion Alnico Shootout: Gold, Cream & Blue (in Dr Z DB4)
Therapy demo - Brad Paisley
Dr. Z X-RAY Demo: The Modern Mash-Up of the Stang Ray and DB4. CHIME AND CHEW!
DrZ DB4 Les Paul Raw Power Clean and Overdriven Tones
Dr. Z Z-Drive Preamp/Distortion Demo (Pt. 2: Alternate Uses)
DRZ AMP DB4 Brad Paisley Tone
Dr Z Carmen Ghia Demo - Dave Baker
Dr Z Z Wreck demo with Brad Paisley
Dr.Z DB4
Dr. Z EMS "Bluesbreaker" Combo Demo
Dr. Z EMS - Low to Medium Gain - Dave Baker demo
Dr. Z Z-LUX demo - Dave Baker