Dr. Z MAZ 18 Jr. Settings Guide
The Dr. Z MAZ 18 Jr. is an 18W all-tube combo using EL84 output tubes — producing a Class A British character closer to Vox than Marshall. It features a single channel with Volume, Cut, and the distinctive Dr. Z 'Mission' voicing: bright, chimey, and touch-responsive. At 18W the EL84s saturate at volume levels that work in medium-sized venues.
The best Dr. Z MAZ 18 Jr. settings start with: Volume at 6/10, Cut at 4/10, Bass at 5/10. Adjust from there based on your amp, guitar, and room volume. For Blues: Volume 7/10, Cut 4/10, Bass 5/10.
⚡ Start Here — Recommended Settings
| Control | Starting Position | Range |
|---|---|---|
| Volume | 6/10 | Silent → Loud |
| Cut | 4/10 | Bright → Dark |
| Bass | 5/10 | Thin → Full |
These are universal starting points. Adjust based on your amp, guitar, and room. Scroll down for genre-specific settings and artist-documented positions.
What Each Control Does
Recommended Starting Settings
Safe starting positions for any style. Adjust from here based on your amp and room.
All values on a 0–10 scale. These are starting points — fine-tune by ear.
Settings by Genre
Volume at 7 pushes the EL84 output stage — the MAZ 18 Jr. produces its best blues tone when the power tubes are working. Cut at 4 prevents the high-Volume EL84 harshness without losing the amp's natural chimey top-end. Bass at 5 provides warmth without mud.
Lower Volume for clean operation — the MAZ 18 Jr.'s clean tone is bright and articulate. Cut at 3 preserves the amp's natural brightness for Telecaster chicken-picking. Bass at 4 keeps the low end controlled for the tight, crisp country rhythm sound.
Pushed Volume for natural EL84 saturation — the MAZ 18 Jr. at Volume 8 produces a compressed, chimey saturation that defines indie rock clean-into-driven tone. Cut at 5 balances brightness. Bass 6 adds body to the driven sound.
A moderately pushed Volume gives a British-flavored, touch-responsive breakup suited to classic rock rhythm playing, sitting between the clean country setting and the fully driven indie setting.
Low Volume keeps the amp fully clean; higher Cut darkens the naturally bright EL84 top end for a warmer, rounder voicing suited to archtop and hollow-body jazz tones.
Tips & Common Mistakes
- The Cut control is a shelving treble cut — turning it clockwise (higher number) removes treble. This is the opposite of a standard Treble boost control. At high Volume settings Cut at 4-6 prevents the EL84 power stage from sounding harsh without removing the natural top-end character of the amp.
- At only 18W with EL84 output tubes, this amp reaches natural power-amp saturation at a genuinely usable volume for small-to-medium venues, unlike many higher-wattage American-voiced amps that need much more volume to break up.
- The simple three-knob control set means most of the tone-shaping happens through Volume and playing dynamics rather than an extensive EQ section — guitar volume and pickup selection become more important expressive tools on this amp than on a heavily EQ-equipped design.
- A single dynamic microphone close to the speaker captures this amp accurately for recording — its Class A EL84 character responds well to standard rock-recording mic technique without needing an unusual placement to sound controlled.
- For players switching from a Marshall-voiced amp, expect a brighter, chimier top end at equivalent Volume settings, consistent with the Vox-adjacent design philosophy behind this circuit.
FAQ
Dr. Z MAZ 18 Jr. — Common Questions
Best starting settings for Dr. Z MAZ 18 Jr.: Volume at 6/10, Cut at 4/10, Bass at 5/10. Adjust from there based on your guitar, room, and playing style.
For Blues: Volume 7/10, Cut 4/10, Bass 5/10. Volume at 7 pushes the EL84 output stage — the MAZ 18 Jr. produces its best blues tone when the power tubes are working. Cut at 4 prevents the high-Volume EL84 harshness without losing the amp's natural chimey top-end. Bass at 5 provides warmth without mud.
For Country: Volume 5/10, Cut 3/10, Bass 4/10. Lower Volume for clean operation — the MAZ 18 Jr.'s clean tone is bright and articulate. Cut at 3 preserves the amp's natural brightness for Telecaster chicken-picking. Bass at 4 keeps the low end controlled for the tight, crisp country rhythm sound.
Volume: Master volume and gain control — higher Volume simultaneously increases output and pushes the EL84 output stage into saturation. (Silent to Loud). Cut: Treble cut — reduces high-frequency harshness at high Volume settings. Works opposite to a Treble control. (Bright to Dark). Bass: Low-frequency content. (Thin to Full)
The Cut control is a shelving treble cut — turning it clockwise (higher number) removes treble. This is the opposite of a standard Treble boost control. At high Volume settings Cut at 4-6 prevents the EL84 power stage from sounding harsh without removing the natural top-end character of the amp. At only 18W with EL84 output tubes, this amp reaches natural power-amp saturation at a genuinely usable volume for small-to-medium venues, unlike many higher-wattage American-voiced amps that need much more volume to break up. The simple three-knob control set means most of the tone-shaping happens through Volume and playing dynamics rather than an extensive EQ section — guitar volume and pickup selection become more important expressive tools on this amp than on a heavily EQ-equipped design. A single dynamic microphone close to the speaker captures this amp accurately for recording — its Class A EL84 character responds well to standard rock-recording mic technique without needing an unusual placement to sound controlled. For players switching from a Marshall-voiced amp, expect a brighter, chimier top end at equivalent Volume settings, consistent with the Vox-adjacent design philosophy behind this circuit.
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