Marshall 1987X MK II Reissue 2-Channel 50-Watt vs Marshall JCM900 2100

The Marshall 1987X MK II Reissue 2-Channel 50-Watt and the Marshall JCM900 2100 are both amplifiers sharing mid-forward, bright, dynamic. The Marshall 1987X MK II Reissue 2-Channel 50-Watt leans crunchy. The Marshall JCM900 2100 leans aggressive and high gain. Current prices: $2299.99 vs $799.95.

Similarity
citedBlended from circuit-archetype lineage, dynamic feel, tone-signal overlap and tone-vector distance — the tone vector itself is derived from editorial description text, not a measured acoustic signal, so this reflects how similarly the catalog copy describes the two, not a lab measurement. Shown only within a gear class, and only where there's enough evidence to be meaningful.

66% — moderately similar

Shared genres
citedGenres both listings are associated with.
  • Classic Rock
  • Rock
  • Hard Rock
Shared tone character
citedDerived from overlapping tonal signals across both listings.
  • mid-forward
  • bright
  • dynamic
  • full
Citation fame
citedCitation/mention fame — how often this gear is cited across artist rigs and gear discussion.
0%
34%
Price

$2299.99via Reverb

$799.95via Reverb

Description

The Marshall 1987X is a hand-wired reissue of the 50-watt Plexi, the lead head that sat between the 18-watt combos and the 100-watt Super Lead. With EL34 power valves and no master volume, it produces open cleans that bloom into a focused, aggressive crunch when pushed, often described as tighter and more cutting than the 100-watt version. Four inputs and two jumperable channels deliver the classic late-1960s British stack voicing favored across rock.

The Marshall JCM900 2100 SL-X is a 100-watt master-volume tube head from the early-to-mid 1990s, a high-gain evolution of the JCM800 2203. It delivers classic aggressive Marshall crunch with more gain on tap, a slightly enhanced midrange, a softer low end and an overall darker, warmer voice than the brighter JCM800. It offers two footswitchable volume levels for lead boosts with no tonal change. Players find it tight, responsive and capable of good tones without being cranked. Used by Billy Gibbons among many rock players, it suits hard rock, classic rock and metal rhythm and lead work.

Genres
citedGenres this gear is documented as being used in.
  • Blues Rock
  • Blues
  • Metal
Tonal lean
  • crunchy
  • aggressive
  • high gain
  • saturated
Good for
citedOccasions this gear suits — judged per model, or derived from its wattage, connectivity and category.
  • Live
  • Studio
  • Live
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