Marshall · JTM

JTM-45

The first Marshall stack head — the 45W JTM-45 that defined the "plexi" era.

Catalogue code: JTM-45 (NO MODEL NUMBER) 45W LEAD
Years: 1962–1964
Type: head
Valves & speakers: 45W, 3 x 7025, 2 x 6L6, 1 x GZ34
Lifecycle: retired
Confidence: Medium

Specifications

Watts: 45
Speakers
Tubes: 3 x 7025, 2 x 6L6, 1 x GZ34
Channels: 2

01 / Witnesses

What applies here

Marks that can be entered for this maker: Serial number (plate), Transformer code, Speaker code, Born-on / QA sticker, Panel features (no code).

02 / Bounds

The model year is a floor

Nothing predates 1962; components only push the date later.

03 / Value

What moves the price

Sold-listing reading: fair $7,367, good $7,871, excellent $10,997 USD · 4 sold listings (thin sample — indicative only) · as of 2026-10-14. STRONG ILLUSTRATION of why vintage and reissue must not be mixed: the four vintage 1965-66 JTM45 heads sold at 7366-12564 USD, while the '2245 JTM45 MK II Reissue' heads in the same page sold at 1327 and 1785 USD - a 5-7x gap. Reissues (2245) are excluded from this row. Also excluded: 'Vintage Modern 2266 (JTM45)' (a different modern amp), a Rockitt Retro RR50 clone, and one undated 'Marshall Jtm 45' listing that could not be placed. Note the vintage lots are 1965-66, i.e. later than the 1962-1964 window recorded in models.json for this row - the JTM45 run continued into 1966. Reverb exposes the price and condition but not the exact sale date, so asof = measurement date; no Fair/Poor sale observed; fair = lowest sold price in sample