DR. Z DB4
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
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.
Power Output 18/38
Watts (standard with Half/Full power switch)
Output Tubes 4 – EL84
Preamp Tubes 1 – 5879,
1 – 12AX7
Rectifier 1 –
Rotatory Tone Switch, Cut
Other 4, 8, 16 Ohm
18/38 Half/Full power switch
Dimensions & Weight 2x12 Combo: 32 1/4” W, 23 1/8” H, 10 1/2” D; 68 lbs.