5103 McCullough Ave. Ste. 101, San Antonio, TX 78212
Phone: 210.384.4303
Hours of Operation: Tues-Sat from 11am-6pm

Dr. Z DB4 Head - Red w/Salt & Pepper Grill (051)

By Dr. Z Amplification

$ 1,799.00

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Questions? 210-384-4303 or Email


“Best sound ever…Seriously!” – Brad Paisley



Power Output 18/38 Watts (standard with Half/Full power switch)
Output Tubes 4 – EL84
Preamp Tubes 1 – 5879, 1 – 12AX7
Rectifier 1 – 5AR4
Controls Volume, Rotatory Tone Switch, Cut
Other 4, 8, 16 Ohm
18/38 Half/Full power switch
(Models without Half/Full power switch are available as special order. Mention this to your dealer when ordering your amp).
Removable casters (2×12 combo only)
Configurations Head
1×12 “Classic-Lite” Combo (loaded with Celestion Gold)
2×12 “Bluesbreaker” Combo (loaded with two Celestion Blue speakers)
Colors Head: Black, Blonde, Red
1×12 “Classic-Lite” Combo: Black, Blonde, Red
2×12 “Bluesbreaker” Combo: Black, Red, Navy Blue
Dimensions & Weight Head: 19” W, 9 3/4” H, 9 1/2” D; 26 lbs.
1×12 “Classic-Lite” Combo: 23” W, 20 1/8” H, 10” D; 42 lbs.
2×12 “Bluesbreaker” Combo: 32 1/4″ W, 23 1/8″ H, 10 1/2″ D; 68 lbs.
Owners Manual Download

General Information

The DB4 is the fourth collaboration between Dr. Z and Brad Paisley (hence the name DB4: Doc & Brad’s fourth amp design). Brad asked for a rich and warm sounding British-voiced amp. I started with a clean sheet of paper.

The input of the amp uses a 5879 U.S. made pentode preamp tube. This was the tube selected by Les Paul to be used in his Gibson GA-40 Les Paul amp. The full-bodied silky tones of the 5879 are then driven into a rotatory frequency filter. This control selects between jangly brilliance to deep and full resonant tones and everything in between. To help fine adjust the hue of delivered frequency to the four EL84 output tubes is a cut control. Think of this as a tone control for your output tubes.

This original amp design has its own voice, one that doesn’t sound like any EL84 amp you have ever heard. It will be offered as a head, 1×12 “Classic-Lite” combo loaded with a Celestion Alnico Gold, and 2×12 “Bluesbreaker” combo loaded with two Celestion Alnico Blue speakers.

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