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Boss ME-25
Photo: Reverb

Boss ME-25

Multi-effectsDigital
List price
$276.5
Key facts
TypeFloor-based digital multi-effects pedal31
MakerBoss1
AnnouncedJanuary 2010, shipping that January2
Circuit typeDigital3
Power9V DC, center negative, 150mA3, or six AA batteries1
ControlsDrive, Tone, and Volume knobs3
FootswitchesThree heavy-duty footswitches1

The Boss ME-25 is a floor-based digital multi-effects pedal announced by Boss at NAMM in January 2010, positioned as an affordable entry into the company's ME line of floor multi-effects units1. It is stocked with Boss effects including distortions, overdrives, modulation effects, delay, reverb, and a harmonist1, and Boss says it inherits its high-quality sounds from the flagship ME-702.

What set the ME-25 apart from a typical budget multi-effects unit was its Sound Library approach: instead of deep menu editing, players pick a ready-made patch and then shape it with three knobs. It also carries a built-in expression pedal and a USB connection for computer use32.

A multi-effects pedal with a Sound Library

The core idea of the ME-25 is the built-in Sound Library, which RockBoard's PedalPedia describes as giving "instant access to dozens of classic and modern effects"3. The onboard Sound Library comes loaded with 60 effects combinations suitable for a wide range of playing styles2. Rather than building a sound from scratch, you select a stored combination and then customize it with simple twists of the Drive, Tone, and Volume knobs3.

Three heavy-duty footswitches allow the user to select sounds and perform other functions1. The built-in expression pedal controls a number of pedal effects, including wah, octave up and down, and a unique freeze effect2.

The unit also includes a Super Stack function that gets big amp tone from a small practice amp2, and its effect list covers the familiar Boss categories:

  • Distortions and overdrives
  • Modulation effects
  • Delay
  • Reverb
  • Harmonist, and many more1

The compact and durable ME-25 inherits its high-quality sounds from the flagship ME-702, and its metallic black finish brings it in line with its bigger brother4.

USB and computer connection

The ME-25 includes USB connectivity, allowing users to stream audio and other data back and forth with their computer2. Boss supports this with driver downloads covering a range of operating systems:

Connecting the ME-25 to a computer requires the dedicated BOSS driver software, and editing tones from a desktop requires BOSS TONE STUDIO for ME-25, Ver.1.1.2 or later56. The driver download and the current BOSS TONE STUDIO version are both available from Boss's updates and drivers page for the ME-256. Once connected, BOSS TONE STUDIO gives you on-screen access to the same effect categories built into the unit, including distortions, overdrives, modulation effects, delay, reverb, and a harmonist12.

Boss notes that even if the ME-25 is connected to a USB 3.0 port, the performance of the product will not change7. Mac computers running Microsoft Windows are not supported7.

BOSS TONE STUDIO for ME-25, the editor and librarian software, requires version 1.1.2 or later5. The owner's manual is available from the Boss support site in seven languages8.

What reviewers said

MusicRadar reviewed the ME-25 in 2010 and found it exceeded expectations for its price, writing4:

"the sounds are all decent quality, and the upgraded COSM amp models add yet another touch of class to the unit"4

MusicRadar's reviewer, Stuart, 20104

The review was published when the ME-25 carried a UK price of £169, and the reviewer judged that the unit exceeded what you could get for that money in 20104. The metallic black finish was noted as bringing it in line with the ME-704.

Where it sits in the Boss line

The ME-25 was announced alongside the TU-3 chromatic tuner as part of Boss's floor-based multi-effects line2, with a retail price of $276.50 and shipping in January 20102. Its metallic black finish brought it in line with its bigger brother, the ME-70, and it shared that flagship's sound set in a more compact and affordable format2. Players comparing Boss floor multi-effects today can also look at the later ME-80 and ME-90, or the compact GT-1 and EX-4 Effects Expander, on the multi-effects type page.

Videos

ME-25 Guitar Multiple Effects Overview
BOSSchannel
Boss ME-25 Guitar Multi-Effects Pedalboard Overview | Full Compass
Full Compass
BOSS ME 25 HARD ROCK Tone FREE Settings | Slash-Inspired: Tutorial
Direct Recording Guitar

Questions

Does the Boss ME-25 run on batteries?

Yes. The ME-25 runs on six AA batteries or AC power, so it works away from a wall outlet for practice or travel. For permanent pedalboard use, the AC adapter is the practical choice since six AAs will need replacing over time.

What power supply does the ME-25 need?

The ME-25 takes 9V DC, center negative, and draws 150mA. That is the standard Boss power configuration, so most common 9V pedal power supplies with a center-negative barrel will run it.

Does the ME-25 have a built-in expression pedal?

Yes. The built-in expression pedal controls a number of pedal effects, including wah, octave up and down, and a unique freeze effect, so you get foot control of those sounds without adding a separate expression pedal.

Can the ME-25 connect to a computer by USB?

Yes. The ME-25 includes USB connectivity, allowing users to stream audio and other data back and forth with their computer. Boss provides driver downloads for Windows and for macOS, and the connection also works with BOSS TONE STUDIO.

Is the Boss ME-25 digital or analog?

The ME-25 is a digital multi-effects processor. Its circuit type is listed as digital, and it includes COSM amp models, which are Boss's digital amp-modeling technology.

What is BOSS TONE STUDIO for ME-25?

BOSS TONE STUDIO for ME-25 is Boss's editor and librarian software for the pedal, available as a free download from the Boss support site. Boss requires version 1.1.2 or later for use with the ME-25.

Sources (8)
  1. NAMM 2010: Boss unveils ME-25 multi-effects guitar pedal, MusicRadar, 2010-01-14
  2. Boss Launches ME-25 Multi-Effects & TU-3 Tuner, Premier Guitar, 2010-01-15
  3. ME-25 Multieffekt by BOSS, RockBoard PedalPedia, 2026
  4. Boss ME-25 multi-FX review, MusicRadar, 2010-05-09
  5. BOSS - Support - Support News - Compatibility with macOS High Sierra (10.13), Boss (boss.info)
  6. BOSS - Support - Support News - Compatibility with macOS Sierra (10.12), BOSS (boss.info), 2016-10-07
  7. BOSS - Support - ME-25 - Updates & Drivers, Boss (boss.info)
  8. BOSS - Support - ME-25 - Owner's Manuals, boss.info

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