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Description

Step back in time with the Marshall 2245 JTM45 MK II Reissue 2-Channel 30-Watt Guitar Amp Head, a faithful recreation of the iconic amplifier that powered the sounds of the '60s. This amp head brings authentic vintage tone to your modern setup, capturing the essence of classic rock with its meticulous design. Carefully engineered to mirror the original, it features a hand-wired tag board, Celestion G12M Greenback speakers, and KT66 power tubes for that unmistakable warm, full-bodied sound.

The JTM45 MK II isn't just about nostalgia; it's equipped with two channels that offer flexibility for a range of playing styles. From the clean, articulate tones that defined early rock to the rich, creamy overdrive that pushed boundaries, this amp head delivers uncompromising performance. The dual inputs allow for easy instrument and mic connections, making it versatile for both live gigs and studio sessions.

Whether you're chasing the tones of your rock heroes or carving out a sound that's uniquely yours, this amp head is a robust platform for creative expression. Embrace the legacy and craft your signature sound with this legendary piece of gear.

Key Features:

  • 30-watt power output
  • Two-channel configuration
  • Hand-wired tag board
  • Equipped with KT66 power tubes
  • Celestion G12M Greenback speakers
  • Dual inputs for versatile connectivity
  • Authentic vintage tone reproduction

Product specs

Brand Marshall
Model 2245 JTM45 MK II Reissue 2-Channel 30-Watt Guitar Amp Head
Year 1989 - 2025
Made In United Kingdom
Categories Guitar Heads
Color Family Black
Electronics Tube
Impedance 16 ohms, 4 ohms, 8 ohms
Number of Channels 2 Channels
Number of Inputs 4 Inputs
Output Power (Watts) 30
Power Tube Type 6L6
Reverb None

FAQs

What type of tubes does the Marshall 2245 JTM45 MK II Reissue use?

The Marshall 2245 JTM45 MK II Reissue uses 6L6 power tubes, which are known for their smooth and warm tone, making it suitable for classic rock and blues genres.

How many channels does the Marshall 2245 JTM45 MK II Reissue have?

This amp head features two channels, allowing for a range of tonal options from clean to overdriven sounds.

Is the Marshall 2245 JTM45 MK II Reissue suitable for gigging?

With its 30-watt output, the Marshall 2245 JTM45 MK II Reissue is powerful enough for small to medium-sized venues, especially when paired with an efficient speaker cabinet.

Does the Marshall 2245 JTM45 MK II Reissue have built-in reverb?

No, the Marshall 2245 JTM45 MK II Reissue does not feature built-in reverb, so players may need an external reverb pedal if they require that effect.

What is the impedance range for the Marshall 2245 JTM45 MK II Reissue?

The Marshall 2245 JTM45 MK II Reissue supports 16 ohms, 8 ohms, and 4 ohms impedance, offering flexibility in pairing with different speaker cabinets.

Reviews

PROS

  • Delivers classic Marshall roar with a midrange focus and soulful overdrive.

  • Impressive build quality with solid pots and low noise floor.

  • Effective tone controls offer versatility across entire range.

  • Warm, punchy, and glassy clean tones at lower volumes.

  • Excellent touch response and sweet tone, even at lower wattage.

  • Great for small gig levels and works well with pedal setups.

  • Comparable to vintage Fender amps, yet distinct in Marshall's signature sound.

  • Offers power-tube distortion with an attenuator, bypassing the need for a master-volume mod.

  • Provides a unique tone compared to brighter, more aggressive Marshall models.

CONS

  • Lacks reverb and effects loop, limiting built-in flexibility.

  • Requires careful dialing to find its sweet spot.

Owner Insights

We analyzed real musician discussions from forums and Reddit to find what players love, question, and tweak about Marshall 2245 JTM45 MK II Reissue 2-Channel 30-Watt Guitar Amp Head.

Mods and upgrades

  • Users recommend combining G12M and G12H speakers for a balanced tone, similar to the Bogner Goldfinger cab setup.

    Source
  • Installing a PPIMV on PCB-based reissue models is feasible if traces or leads are accessible and proper soldering techniques are used.

    Source

Features and functionality

  • The JTM45 is notably loud, even with attenuators like the Torpedo Captor, making it challenging for small rooms.

    Source
  • JTM45 lacks a master volume, making volume control challenging; a post-phase inverter master volume (PPIMV) can help maintain tonal integrity when reducing volume.

    Source

Use cases and applications

  • A treble booster or EQ pedal cutting below 100Hz effectively manages excessive low-end frequencies.

    Source
  • The Bluetone Loadbox is praised for not mangling tone during home recording, but its limited attenuation levels may not suit live settings.

    Source

User experience

  • Owners suggest elevating the cab or using 10" speakers to control the bass in smaller spaces.

    Source
  • Users report that the JTM45's power amp distortion is integral to its classic tone, making master volume mods potentially tone-altering.

    Source

Comparisons

  • Compared to the BassBreaker 15, the JTM45 offers a louder output and a more traditional British tone.

    Source
  • Fryette Power Station 2 is highly regarded as an attenuator for maintaining tone at lower volumes, while Bluetone offers a more budget-friendly alternative with limited features.

    Source

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Artist usage

Add artist
See how Etienne Quartey‐Papafio uses Marshall 2245 JTM45 MK II Reissue 2-Channel 30-Watt Guitar Amp Head

Etienne Quartey‐Papafio

Singer, Guitarist

Whitelands

...
Verified via Photo

In an Instagram post by Whitelands, it is confirmed that Etienne Quartey‐Papafio uses a Marshall 2245 JTM45 MK II Reissue 2-Channel 30-Watt Guitar Amp Head. The photo, shared by Whitelands on March 29, 2025, includes a caption thanking @marshallamps for providing the JTM45 and cab to enhance their recording and live performances.

Genre Usage

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Used With

Based on how musicians on Equipboard use Marshall 2245 JTM45 MK II Reissue 2-Channel 30-Watt Guitar Amp Head, it is most commonly used with the following gear.

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