Boss MT-2 Metal Zone Effects Pedal : Review

MT-2 Metal Zone

The king of the sustain

It is characterised by huge mids and lows, a long sustain and a much saturated sound.


  • Level
  • The overall volume of the effect.

  • High/Low
  • The volume of the selected frequency. Pushing the knob alternates between the two parameters.

  • Middle/Mid Freq
  • Two functions. It adjusts the level of the middle or, pushing it, the reference frequency.

  • Distortion
  • The intensity and the quantity of the effect.


Some settings included in the manual of the MT-2.

  • Heavy Metal
  • Heavy Metal
  • Overdrive
  • Overdrive
  • British Rock
  • British Rock
  • Rock'n roll
  • Rock'n roll
  • Hard Rock
  • Hard Rock
  • Fuzz
  • Fuzz
  • Rock 1
  • Rock 1
  • Rock 2
  • Rock 2

General settings

I found these settings on the web. Values are from 0 to 12.

GenreLevelLowHighMid FreqMiddleDist
Heavy Metal10412.52.510
Creed (My Own Prison)1212412129
Death Metal612110107
Green Day786327
Iron Maiden91206811
Warm Overdrive212113118

Comparison with the ML-2

Controls and equalizations

In this context the Metal Zone is superior. In fact, it provides a more complete equalization section with a dedicated knob for mids. Therefore it turns out more flexible and versatile.


In general, we can say that the ML-2 generates a more robust low end, and can be more suitable to modern genres, for example Industrial, Grind Core, Hard Core, Lamb of God, Pantera, Killswitch Engage, but this depends on many different elements. The MT-2 is, in my opinion, a more appropriate choice in a classic context, like Green Day, AC/DC, Led Zeppelin and so on.

Keeley Mod

Among the many modifications of the Metal Zone certainly the most famous and appreciated job. The lower noise level than the original version, the high quality of every component, the superior bass response and the more robust gain are the main characteristics. In addition, it adds a 3-way switch with three modes for the distortion. Let's see them.

  • Position 1 (Left)
  • Simply, it adds to the sound of the original version more presence, it is more powerful and with a better bass response.

  • Position 2 (Center)
  • It produces an extraordinary powerful output and ultra basses. It is particularly suitable to the use with a 4X12 cabinet.

  • Position 3 (Right)
  • It generates a natural tube sound, more robust and fat than the original.

Final opinion

Certainly, a great distortion pedal. The most important characteristic is, undoubtedly, the flexibility and the excellent sustain. A bit of experience with the equalization is necessary. The price of the MT-2 is, in my opinion, much valid.

Other reviews

Effects (Pedals and Floorboards)

  • Vibrato/Tremolo | Digitech

    Tremolo, Opto, Bias, Duo, Rotary, UltraVibe and VibroPan. Tap Tempo, a real stereo circuit and the true bypass. The Modify knob works in conjunction with Type and adjusts some parameters that are listed in the manual. 2 inputs and 2 outputs.

  • Nova System/Limited
  • Floorboards | TC Electronic
    Nova System/Limited

    The most important characteristic of this multi-effects is the NDT (Nova Drive Technology), the analog circuit. The Nova System produces really a great sound and with 30 factory presets and 60 programmable presets turns out very flexible.


Guitar Amps

Multitrack Digital Recorders

Handheld Recorders