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Oliver HM-20 Heavy Metal main image

Oliver HM-20 Heavy Metal

Oliver HM-20 Heavy Metal

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This product is Vintage or Discontinued

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Page last updated Aug 11, 2025

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Description

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Made in Brazil in the late 1980s under official license from Roland Japan. It is a Boss HM-2 in a different enclosure.

Product specs

Power	9V
Bypass	buffered bypass
Analog/Digital	analog

Videos

ArnoldPlaysGuitar

ArnoldPlaysGuitar

GEAR FIND - Oliver HM-20 Heavy Metal Distortion Pedal - a Brazilian-made Boss HM-2 Clone?

Video thumbnail for GEAR FIND - Oliver HM-20 Heavy Metal Distortion Pedal - a Brazilian-made Boss HM-2 Clone? by ArnoldPlaysGuitar

GEAR FIND - Oliver HM-20 Heavy Metal Distortion Pedal - a Brazilian-made Boss HM-2 Clone?

ArnoldPlaysGuitar

ArnoldPlaysGuitar

Video thumbnail for Pedal Oliver HM 20 Heavy Metal Review / Demo by Loucos por Pedais

Pedal Oliver HM 20 Heavy Metal Review / Demo

Loucos por Pedais

Loucos por Pedais

Video thumbnail for The Chainsaw Files – Oliver HM-20 Heavy Metal vs Boss HM-2 clone comparison by Dome

The Chainsaw Files – Oliver HM-20 Heavy Metal vs Boss HM-2 clone comparison

Dome

Video thumbnail for Oliver Heavy Metal HM-20 - AC/DC #oliver #mfmod by Marcelo Donati

Oliver Heavy Metal HM-20 - AC/DC #oliver #mfmod

Marcelo Donati

Reviews

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Based on 0 Reviews and 1 Rating

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Genre Usage

Based on how artists on Equipboard use this gear, it is most commonly found in the following genres.

Alternative Rock

Old School Thrash

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HM-20 is the HM-2 made in Brazil in the late 80s under official license from Roland Japan. It is a Boss HM-2 in a different enclosure.

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