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BASSGAINGATEMIDSTREBLEVOLUMEBIAS

125B · 7 knobs

PCB Guitar Mania

Metal Boxer

Based on the Zvex Box of metal

Category
Distortion
Controls
Bass · Gain · Gate · Mids · Treble · Volume · Bias
Difficulty
Advanced
Price
€11.90out of stock

Heads up Builders widely report inconsistent quality from PCB Guitar Mania boards, and whether a given board works is a gamble. Read recent forum reports before ordering.

From the vendor

Project overview:

Inspired by the Box of Metal, one of the heaviest-sounding pedals in the ZVEX lineup.

This board will punch your audience with a massive wave of distortion with a great thump and excellent tone control. It also includes a noise-silencing gate feature that can be turned off or on with a convenient footswitch.

Just don’t expect mercy from this pedal; the gain knob adjusts from hard to harder.

Introduction

Metal Boxer is an aggressive high-gain pedal whose gain and tonal characteristics are somewhat similar to high-gain tube amplifiers that have been the staple of hard rock and metal sounds since the ‘80s.

There are many pedals out there, but none of them can deliver those punching waves like the Metal Boxer. Its superb sound quality provides excellent harmonic content while consistently delivering gain on tap for your desired tone. The set of knobs also adds all the versatility you need to hit the right spot.

Gate: Adjust for your playing style. When fully clockwise, palm-muting will create an audible thump, and bumping the strings will open the gate. Turn down to make the gate tighter. Gate is unaffected by other controls.

Volume: Sets the output volume of the pedal.

Bass: Sets the bass/sub-bass level.

Treble: Adjust for treble content. Use this in tandem with your amp’s presence and treble controls to get the precise top-end texture… the presence control is essential on your amp if you have one.

Gain: Sets the amount of distortion. The BOM does NOT clean up. This control goes from hard to very hard. It may crackle when turned, which is perfectly normal.

MIDs: Adjust to accentuate or scoop out mids.

Controls

Potentiometers

• Bass

• Gain

• Gate

• Mids

• Treble

• Volume

For any technical questions regarding this build don’t forget to check out our Facebook Group and our forum at Free Stomp Boxes.

Metal Boxer 1v1 – Building Docs

Metal Boxer – Building Docs

Metal Boxer – Drilling template

Schematic

The schematic is in the vendor's build document, page 5. Open the build document. No KiCad fragment has been drawn for this circuit yet.

Parts list 75 rows

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RefValueNormalizedTypeNotes
Resistors 38
R374k74.7k
R385k65.6k
R11m1M
R22m20.0022
R32m20.0022
R41k51.5k
R51k1k
R62m20.0022
R7680k680k
R8470k470k
R92m20.0022
R102m20.0022
R111k51.5k
R12470k470k
R132m20.0022
R142m20.0022
R151k51.5k
R16220k220k
R172m20.0022
R182m20.0022
R191k51.5k
R202m20.0022
R212m20.0022
R221k51.5k
R2347k47k
R24100k100k
R251m1M
R262m20.0022
R2715k15k
R2810m10M
R2910k10k
R3010k10k
R3110k10k
R3247k47k
R3347k47k
R344k74.7k
R3522k22k
R3622k22k
Capacitors 17
C122n22n
C322n22n
C41n1n
C510n10n
C622n22n
C722n22n
C8100n100n
C9180p180p
C1022n22n
C1122n22n
C1310n10n
C210u10u
C1210u10u
C1410u10u
C1510u10u
C1622u22u
C1722u22u
Diodes 4
D19v19V1
D21N40011N4001
D31N40011N4001
D41N58171N5817
Transistors 5
Q1BS170BS170
Q2BS170BS170
Q3BS170BS170
Q4BS170BS170
Q5BS170BS170
ICs 1
IC1TL072TL072
Potentiometers 7
BASS1MAA1MPotentiometer
GAIN5KCC5kPotentiometer
GATE500KBB500kPotentiometer
MIDS20KAA20kPotentiometer
TREBLE250KAA250kPotentiometer
VOLUME100KAA100kPotentiometer
BIAS5K5kPotentiometer
Trimmers 1
TRIM10K10kTrimmer
LEDs 2
D53mm LED3MM LED
D63mm LED3MM LED