50 CENTS MOD to remove the Mini Universe POP!

Product reviewed

M-VAVE Mini Universe pedal (budget tone effects pedal). The video focuses specifically on a mod to eliminate the “POP” noise from the footswitch.

Main issues addressed

• Noticeable pop when engaging and disengaging the footswitch.
• High-pitched whining (addressed via power supply choice in the video).

Mod solution (core feature / what changes)

A DIY fix is shown: install 2 resistors to eliminate the footwitch pop.

• Requires basic soldering knowledge (the creator suggests learning resources are available on YouTube).
• The creator claims the resistor values used were tested and worked flawlessly, even though other forum solutions use different values.

Soldering approach described

• Solder two tips first, then form the resistor layout into a “W” shape.
• Solder the common tip, then connect the other tips to the three lower footswitch contacts (one connection per contact).
• Use approximately ~400°C on the soldering iron and avoid prolonged contact to prevent circuit damage.
• After soldering, reshape the resistors to ensure they do not block the pedal from closing.

Tools and components mentioned

Components

• Only 2 resistors (specific specs are referenced, but the exact values are not clearly readable from the subtitles).

Tools

1. 3 mm Phillips screwdriver
2. A small screwdriver used as a pry tool to remove plastic knobs
3. Small pliers (helpful if the footswitch is tight)
4. A soldering iron (preferably with a thermostat for controlled temperature)

Disassembly / installation experience (user experience)

The video covers a full teardown-style installation process:

• Remove input/output jack covers
• Carefully remove plastic knobs (the creator recommends microfiber protection to avoid damaging the finish)
• Remove 4 side screws (2 per side)
• Open/unwrap the front panel
• Remove the internal board using 3 internal screws
• Access the footswitch contacts
• Perform the resistor soldering mod
• Reassemble and test

Caution: do not lose small screws during board removal.

Knob note: the knobs aren’t described as “high ending,” so removal should still be patient and delicate to avoid cosmetic or mechanical damage.

Reported results / pros

• Pop is gone for both:
  • engaging
  • disengaging
• High-pitched whining is solved by using a 100% isolated power supply.
• Overall described as a solid solution for getting the best sound from the M-VAVE after the mod.

Cost / comparison to alternatives

• The mod is claimed to be extremely cheap:
  • ~50 cents (creator’s claim)
• Other forum solutions exist, but they use different resistor values; the creator states their tested values work reliably.

Cons / limitations mentioned

• Requires basic soldering ability.
• Risk of damaging the pedal if you:
  • apply heat too long (temperature control recommended)
  • force knob removal
  • block closure with improperly shaped resistors
• Requires DIY opening of the pedal (more effort than a plug-and-play fix).

Where this is positioned (recommendation in the video)

The creator encourages viewers who “still suffer with the M-VAVE pop” to do the mod.

• Links mentioned via Aliexpress and the channel’s Purchase Center for deals/tools.

Overall verdict (based on the video)

Recommended for M-VAVE Mini Universe owners who experience footswitch pop. The video claims a very low-cost (~$0.50) two-resistor mod removes the pop (both engage/disengage), and that whining improves with a truly isolated power supply.

Unique points (consolidated)

• Target problem: footwitch pop (engage + disengage)
• Additional issue: high-pitched whining
• Solution: 2-resistor mod soldered to the PCB/footwitch area
• Claimed cost: 50 cents
• Requires soldering, but basic knowledge is enough
• Claimed resistor values are tested; other forum values differ
• Tools: 3 mm Phillips, pry screwdriver, pliers, thermostatic soldering iron
• Disassembly: jack covers, knobs, 4 side screws, front panel, internal board (3 screws)
• Protection: use a microfiber cloth to avoid damaging knob/finish
• Heat guidance: ~400°C, avoid long contact time
• Resistors shaped into a “W” and positioned to avoid blocking closure
• Results: POP GONE and whining solved with 100% isolated power
• Mentions Aliexpress deals and purchase links

Speakers / views

• Single main speaker/creator: provides the full mod walkthrough, tools/components guidance, and test results.