Deals

Equipboard helps you discover, compare, and find the right gear for your sound.

Sign up Log in

Artist or band Music gear Music gear to an artist Report a duplicate

Contact us About Merch store

© Equipboard Inc.

Metropoulos GPM45 main image

Metropoulos GPM45

Metropoulos GPM45

See more

0 wishlisted

1 saved

Page last updated Mar 30, 2026

Pricing and availability

Store

Reviews

Price

^* Product prices and availability are updated by Equipboard every 24hrs and are subject to change. Equipboard may receive compensation for purchases made at participating retailers linked on this site. This compensation does not affect what products or prices are displayed, or the order of prices listed. For more information, please refer to our affiliate disclosure.

Description

Edit description

The Metropoulos GPM45 is a tribute to the iconic British tube amplifier sound of the 1960s, offering guitarists an authentic tonal palette that's both rich and dynamic. This handcrafted amplifier head is built with meticulous attention to detail, utilizing high-quality components to ensure reliability and exemplary performance. Designed for musicians who crave vintage warmth and clarity, it provides an expressive range that transitions seamlessly from clean tones to a powerful overdrive.

With its point-to-point wiring and classic circuit design, the GPM45 captures the essence of a bygone era, making it a must-have for enthusiasts of classic rock, blues, and beyond. The amplifier head is engineered to deliver articulate sound at any volume, making it a versatile choice for both stage and studio settings. Equipped with a range of controls, it allows players to tailor their sound precisely, offering a personalized experience with every play.

Whether you're chasing the tones of legendary guitarists or crafting your own signature sound, the Metropoulos GPM45 offers an authentic and immersive musical experience. Its attention to sonic detail and build quality make it not just an amplifier, but a true instrument in its own right.

Key Features:

Handcrafted with point-to-point wiring for vintage sound accuracy
Classic circuit design inspired by 1960s British amplifiers
Versatile tonal range from clean to overdrive
High-quality components ensure durability and reliability
Ideal for both stage and studio use

Videos

mrcali68

Guitar Amplifiers: Metropoulos GPM45 / Gibson Les Paul R9

Video thumbnail for Guitar Amplifiers: Metropoulos GPM45 / Gibson Les Paul R9 by mrcali68

Guitar Amplifiers: Metropoulos GPM45 / Gibson Les Paul R9

mrcali68

Video thumbnail for Guitar Amplifier: Landgraff Mo'D / Metropoulos GPM 45 (JTM45) by mrcali68

Guitar Amplifier: Landgraff Mo'D / Metropoulos GPM 45 (JTM45)

mrcali68

Video thumbnail for GEC vs Valve Art KT66 in Metropoulos GPM 45 by Metropoulos Amplification

GEC vs Valve Art KT66 in Metropoulos GPM 45

Metropoulos Amplification

Metropoulos Amplification

Video thumbnail for Guitar Amplifier: Gibson Les Paul R9 / Metropoulos GPM45 / Celestion Greenbacks (Pre Rola) by mrcali68

Guitar Amplifier: Gibson Les Paul R9 / Metropoulos GPM45 / Celestion Greenbacks (Pre Rola)

mrcali68

Reviews

5.0 out of 5

Based on 0 Reviews and 1 Rating

5 star

4 star

3 star

2 star

1 star

More Metropoulos Guitar Amplifier Heads

Metropoulos Super-Plex 100 Watt Head Guitar Amplifier Heads

Metropoulos Super-Plex 100 Watt Head

Who’s using this:

Metropoulos DVL-1 Guitar Amplifier Heads

Metropoulos DVL-1

Who’s using this:

Metropoulos Metro-Plex Guitar Amplifier Heads

Metropoulos Metro-Plex

Who’s using this:

Kemper Profiler Rack Guitar Amplifier Heads

Kemper Profiler Rack

$678.00 - $3,421.95

5 available stores

5.0 (67)

^# 1

in Guitar Amplifier Heads Rank

Who’s using this:

Matthew Bellamy

220 artists using

Marshall JVM410H Guitar Amplifier Heads

Marshall JVM410H

$1,282.00 - $1,999.99

7 available stores

5.0 (69)

^# 2

in Guitar Amplifier Heads Rank

Who’s using this:

75 artists using

Mesa/Boogie Dual Rectifier 100W 3-channel Solo Head (Multi-Watt) Guitar Amplifier Heads

Mesa/Boogie Dual Rectifier 100W 3-channel Solo Head (Multi-Watt)

$2,065.44 - $3,299.00

5 available stores

5.0 (111)

^# 3

in Guitar Amplifier Heads Rank

Who’s using this:

268 artists using

Peavey 6505+ 120-Watt Tube Guitar Amp Head Guitar Amplifier Heads

Peavey 6505+ 120-Watt Tube Guitar Amp Head

$950.00 - $1,999.99

3 available stores

5.0 (59)

^# 4

in Guitar Amplifier Heads Rank

Who’s using this:

73 artists using

Kemper Profiler Power Head - 600-watt Profiling Head Guitar Amplifier Heads

Kemper Profiler Power Head - 600-watt Profiling Head

$1,599.00 - $1,848.00

4 available stores

5.0 (35)

^# 5

in Guitar Amplifier Heads Rank

Who’s using this:

Matthew Bellamy

78 artists using

Orange Tiny Terror 15 Watt Tube Amp TT15H Guitar Amplifier Heads

Orange Tiny Terror 15 Watt Tube Amp TT15H

$240.00

1 available store

4.5 (57)

^# 6

in Guitar Amplifier Heads Rank

Who’s using this:

38 artists using

Kemper Profiler Head Guitar Amplifier Heads

Kemper Profiler Head

$1,239.00 - $2,398.00

4 available stores

5.0 (37)

^# 7

in Guitar Amplifier Heads Rank

Who’s using this:

Matthew Bellamy

86 artists using

Mesa/Boogie Mark V 90-Watt Tube Head Guitar Amplifier Heads

Mesa/Boogie Mark V 90-Watt Tube Head

$1,650.00 - $3,149.00

3 available stores

5.0 (30)

^# 8

in Guitar Amplifier Heads Rank

Who’s using this:

59 artists using

Marshall JCM800 2203 Guitar Amplifier Heads

Marshall JCM800 2203

$1,699.00 - $2,899.99

6 available stores

5.0 (110)

^# 9

in Guitar Amplifier Heads Rank

Who’s using this:

John Frusciante

Dimebag Darrell

365 artists using

Marshall JCM900 4100 Guitar Amplifier Heads

Marshall JCM900 4100

$491.71 - $2,449.99

7 available stores

5.0 (100)

^# 10

in Guitar Amplifier Heads Rank

Who’s using this:

Billie Joe Armstrong

200 artists using

Orange Amplifiers Dual Terror DT30H 30W Tube Guitar Amp Head Guitar Amplifier Heads

Orange Amplifiers Dual Terror DT30H 30W Tube Guitar Amp Head

$600.00 - $949.00

8 available stores

5.0 (41)

^# 11

in Guitar Amplifier Heads Rank

Who’s using this:

Matthew Bellamy

Larry "Ler" LaLonde

35 artists using

Marshall JCM2000 Dual Super Lead Guitar Amplifier Heads

Marshall JCM2000 Dual Super Lead

$600.00

1 available store

4.5 (69)

^# 12

in Guitar Amplifier Heads Rank

Who’s using this:

Stephen Carpenter

Matthew Bellamy

121 artists using

Mesa/Boogie Triple Rectifier 150W Solo Head (Multi-Watt) Guitar Amplifier Heads

Mesa/Boogie Triple Rectifier 150W Solo Head (Multi-Watt)

$2,999.00 - $3,566.64

5 available stores

5.0 (66)

^# 13

in Guitar Amplifier Heads Rank

Who’s using this:

John Frusciante

118 artists using

EVH 5150 III 100-Watt Tube Head Guitar Amplifier Heads

EVH 5150 III 100-Watt Tube Head

$1,499.00 - $2,149.99

7 available stores

5.0 (17)

^# 14

in Guitar Amplifier Heads Rank

Who’s using this:

98 artists using

Marshall Plexi 1959SLP Guitar Amplifier Heads

Marshall Plexi 1959SLP

$1,699.00 - $3,199.99

6 available stores

5.0 (59)

^# 15

in Guitar Amplifier Heads Rank

Who’s using this:

Billie Joe Armstrong

96 artists using

Mesa/Boogie Mini Rectifier 25W Twenty Five Guitar Amplifier Heads

Mesa/Boogie Mini Rectifier 25W Twenty Five

$729.00 - $1,359.00

6 available stores

5.0 (23)

^# 16

in Guitar Amplifier Heads Rank

Who’s using this:

26 artists using

Kemper Profiler PowerRack 600W Guitar Amplifier Heads

Kemper Profiler PowerRack 600W

$1,659.00 - $3,421.95

5 available stores

5.0 (18)

^# 17

in Guitar Amplifier Heads Rank

Who’s using this:

Zachary Cole Smith

29 artists using

Marshall JTM45 45W Tube Guitar Amp Head Guitar Amplifier Heads

Marshall JTM45 45W Tube Guitar Amp Head

$2,199.99 - $2,299.99

3 available stores

5.0 (31)

^# 18

in Guitar Amplifier Heads Rank

Who’s using this:

Billie Joe Armstrong

44 artists using

EVH 5150 III 50-Watt Tube Head Guitar Amplifier Heads

EVH 5150 III 50-Watt Tube Head

$1,399.99 - $1,519.99

3 available stores

5.0 (27)

^# 19

in Guitar Amplifier Heads Rank

Who’s using this:

25 artists using

Orange Amplifiers AD30HTC 30W Tube Guitar Amp Head Guitar Amplifier Heads

Orange Amplifiers AD30HTC 30W Tube Guitar Amp Head

$1,379.00 - $1,699.00

3 available stores

5.0 (33)

^# 20

in Guitar Amplifier Heads Rank

Who’s using this:

41 artists using

EVH 5150III 50W Guitar Amplifier Heads

EVH 5150III 50W

$1,399.99 - $1,519.99

2 available stores

5.0 (24)

^# 21

in Guitar Amplifier Heads Rank

Who’s using this:

Eddie Van Halen

22 artists using

Orange Rockerverb MKIII 100-Watt Tube Guitar Amp Head Guitar Amplifier Heads

Orange Rockerverb MKIII 100-Watt Tube Guitar Amp Head

$1,890.00 - $2,749.00

8 available stores

5.0 (25)

^# 22

in Guitar Amplifier Heads Rank

Who’s using this:

Matthew Bellamy

47 artists using

Peavey 5150 120-Watt Head Guitar Amplifier Heads

Peavey 5150 120-Watt Head

$1,500.00 - $1,699.99

4 available stores

5.0 (44)

^# 23

in Guitar Amplifier Heads Rank

Who’s using this:

Eddie Van Halen

141 artists using

Orange Micro Dark Guitar Amplifier Heads

Orange Micro Dark

$149.00 - $309.00

8 available stores

4.5 (113)

^# 24

in Guitar Amplifier Heads Rank

Who’s using this:

Stephen Carpenter

15 artists using

Orange Amplifiers TH30H 30W Tube Guitar Amp Head Guitar Amplifier Heads

Orange Amplifiers TH30H 30W Tube Guitar Amp Head

$729.00 - $1,199.00

8 available stores

4.5 (54)

^# 25

in Guitar Amplifier Heads Rank

Who’s using this:

18 artists using

Orange Micro Terror Guitar Amplifier Heads

Orange Micro Terror

$119.00 - $159.00

7 available stores

4.5 (176)

^# 26

in Guitar Amplifier Heads Rank

Who’s using this:

15 artists using

Mesa/Boogie Mark V:25 Guitar Amplifier Heads

Mesa/Boogie Mark V:25

$1,599.00 - $2,222.00

5 available stores

5.0 (29)

^# 27

in Guitar Amplifier Heads Rank

Who’s using this:

15 artists using

Orange Rockerverb 50 Mk III Head Guitar Amplifier Heads

Orange Rockerverb 50 Mk III Head

$1,799.00 - $2,499.00

8 available stores

5.0 (21)

^# 28

in Guitar Amplifier Heads Rank

Who’s using this:

24 artists using

Marshall JVM210H 100-Watt Tube Amplifier Head Guitar Amplifier Heads

Marshall JVM210H 100-Watt Tube Amplifier Head

$1,074.00 - $2,199.00

7 available stores

5.0 (13)

^# 29

in Guitar Amplifier Heads Rank

Who’s using this:

19 artists using

Marshall 2555X Silver Jubilee Reissue Guitar Amplifier Heads

Marshall 2555X Silver Jubilee Reissue

$1,216.00 - $1,999.99

7 available stores

4.5 (24)

^# 30

in Guitar Amplifier Heads Rank

Who’s using this:

Billie Joe Armstrong

Matthew Bellamy

19 artists using

Engl Fireball 100-Watt Tube Guitar Amp Head Guitar Amplifier Heads

Engl Fireball 100-Watt Tube Guitar Amp Head

$1,319.00 - $2,099.99

5 available stores

5.0 (7)

^# 31

in Guitar Amplifier Heads Rank

Who’s using this:

Muhammed Suiçmez

24 artists using

Orange Dark Terror 15-Watt Guitar Amp Head Guitar Amplifier Heads

Orange Dark Terror 15-Watt Guitar Amp Head

$460.00 - $699.00

8 available stores

5.0 (36)

^# 32

in Guitar Amplifier Heads Rank

Who’s using this:

Larry "Ler" LaLonde

10 artists using

Orange Amplifiers Crush CR120H 120W Guitar Amp Head Guitar Amplifier Heads

Orange Amplifiers Crush CR120H 120W Guitar Amp Head

$852.11

1 available store

4.5 (41)

^# 33

in Guitar Amplifier Heads Rank

Who’s using this:

15 artists using

Orange OR15H 15W Tube Guitar Amp Head Guitar Amplifier Heads

Orange OR15H 15W Tube Guitar Amp Head

$622.00 - $799.00

7 available stores

4.5 (46)

^# 34

in Guitar Amplifier Heads Rank

Who’s using this:

11 artists using

Marshall JVM Series JVM205H Guitar Amplifier Heads

Marshall JVM Series JVM205H

$1,111.00 - $1,799.99

6 available stores

5.0 (25)

^# 35

in Guitar Amplifier Heads Rank

Who’s using this:

12 artists using

Friedman Brown Eye 100W Tube Guitar Amp Head Guitar Amplifier Heads

Friedman Brown Eye 100W Tube Guitar Amp Head

$2,450.00 - $4,599.00

7 available stores

5.0 (23)

^# 36

in Guitar Amplifier Heads Rank

Who’s using this:

25 artists using

Marshall SV20H Studio Vintage Guitar Amplifier Heads

Marshall SV20H Studio Vintage

$899.00 - $1,349.99

6 available stores

5.0 (13)

^# 37

in Guitar Amplifier Heads Rank

Who’s using this:

14 artists using

See also: Guitar Amplifier Heads, Metropoulos, Metropoulos Guitar Amplifier Heads

Artist usage

Add artist usage

Community setups

Similar

Add recommendation

Gear Guides

Best Small Tube Amps: Low-Watt Tube Amps Under $500

Equipboard Gear Guides

Best Small Tube Amps: Low-Watt Tube Amps Under $500

Michael Pierce

Giulio Chiarenza

Michael Pierce + 1 more

Updated August 2025

Legendary Guitar Amplifiers to Rock Your World

Equipboard Gear Guides

Legendary Guitar Amplifiers to Rock Your World

Mason Hoberg

S. Jino

Mason Hoberg + 1 more

Updated August 2025

Best 6 Amp Attenuators 2026: Great Guitar Tones at Any Volume

Equipboard Gear Guides

Best 6 Amp Attenuators 2026: Great Guitar Tones at Any Volume

Juan Spinelli

Juan Spinelli

Updated December 2024

8 Best 5 Watt Tube Amps 2026: Small Size, Big Tone for Home Players

Equipboard Gear Guides

8 Best 5 Watt Tube Amps 2026: Small Size, Big Tone for Home Players

S. Jino

S. Jino

Updated April 2025

Most Popular Guitar Amplifier Heads

Added to Equipboard on 04-30-2020 by

N
noble7523

Gear IQ 520