Every version of the classic amps

Buyer’s guides to the amps that changed the most over the years: how to tell each version apart, what changed inside, how to date one from its codes, and what to check before you buy.

• Fender Deluxe Reverb: every version (1963–present) — AA763 and AB763 blackface, the silverface AB868, A1270 and A1172, the Deluxe Reverb II, the '65 reissue and the '68 Custom. Versions: Deluxe Reverb AA763, Deluxe Reverb AB763, Deluxe Reverb AB868, Deluxe Reverb A1270 / A1172, Deluxe Reverb II, '65 Deluxe Reverb reissue, '68 Custom Deluxe Reverb.
• Fender Twin Reverb: every version (1963–present) — Blackface, the 1968 silverface transition, the 100 W and 135 W master-volume Twins, the channel-switching 1980s models and the '65 reissue. Versions: Twin Reverb AB763, Twin Reverb AB568 / AC568, Twin Reverb AA769, Twin Reverb AA270, Twin Reverb, 100 W master volume, Twin Reverb, 135 W ultralinear, Twin Reverb II, The Twin (1987–1994) and the 1994 Twin, '65 Twin Reverb reissue.
• Fender Bassman: every version (1952–present) — From the 1952 1×15 tweed to the 4×10 5F6-A, the brownface and blackface piggybacks, the silverface heads and the '59 reissue. Versions: Bassman 5A6 / 5B6 (1×15), Bassman 5E6 / 5E6-A, Bassman 5F6, Bassman 5F6-A, Bassman 6G6 / 6G6-A / 6G6-B, Bassman AA864 / AA165 / AB165, Bassman AC568 / AA270 / AA371, '59 Bassman reissue / '59 Bassman LTD.
• Marshall 1959 Super Lead: every version (1965–present) — KT66 and EL34 plexis, the 1968 circuit, metal-panel JMPs and US-export 6550 heads, the JCM800-era 1959, the SLP reissue, the hand-wired 1959HW and the 1959RR. Versions: Super Lead 1959, early plexi, Super Lead 1959, 1968–69 plexi, JMP Super Lead 1959, metal panel, Super Lead 1959, US-export 6550 version, JCM800 Super Lead 1959, 1959SLP reissue, 1959HW hand-wired reissue, 1959RR Randy Rhoads.
• Vox AC30: every version (1960–present) — JMI AC30/4 and AC30/6, Top Boost, the 1970s and 1980s diode-rectifier amps, the 1990 Limited Edition, the Korg-era TB/TBX, CC2, Heritage, Hand-Wired and C2. Versions: JMI AC30/4 and AC30/6, JMI AC30 Top Boost (and AC30 Bass), AC30 Top Boost and Top Boost Reverb, 1970s, AC30 Solid State, AC30 Top Boost, 1980s, AC30 Limited Edition (1990) and AC30 Vintage, AC30TB / AC30TBX Top Boost reissue, AC30HW / AC30HWH Hand-Wired, AC30CC2 / AC30CC2X Custom Classic, AC30H2 / AC30H2L Heritage, AC30HW2 / AC30HW2X Hand-Wired, AC30C2 / AC30C2X Custom.
• Mesa/Boogie Mark Series: every version (Early 1970s on) — The original Boogie, the Mark IIA, IIB, IIC and IIC+, the striped Mark IIIs, the Mark IV A and B, the Mark V and the Mark I Reissue. Versions: Mark I (the original Boogie), Mark IIA, Mark IIB, Mark IIC, Mark IIC+, Mark III, Mark IV (A and B), Mark V, Mark I Reissue.
• Marshall JTM45: every version (1962–present) — The JTM45 head from coffin-badge to plexi panel, the JTM45/100, the 1961 and 1962 Bluesbreaker combos, the 2245 and 1962 reissues and the Super 100JH. Versions: JTM45 head, JTM45/100, Model 1961 and 1962 “Bluesbreaker” combos, JTM45 2245 reissue and the Offset edition, 1962 Bluesbreaker reissue, Super 100JH.
• Marshall JCM800: every version (1975–present) — The JMP master-volume 2203 and 2204, the JCM800 2203/2204 heads and combos, the split-channel 2205 and 2210, the non-master 1959 and 1987, and the 2203X reissue. Versions: JMP Master Volume 2203 / 2204, JCM800 2203 / 2204 and their combos, JCM800 2205 / 2210 split channel, JCM800 1959 and 1987 (no master volume), 2203X JCM800 reissue.
• Marshall JCM900: every version (1990–c. 2000) — The single-channel Hi Gain Master Volume (Mark III) 2100/2500, the SL-X 2100/2500 and the two-channel Hi Gain Dual Reverb 4100/4500. Versions: Hi Gain Master Volume (Mark III) 2100 / 2500, SL-X 2100 / 2500, Hi Gain Dual Reverb 4100 / 4500.
• Marshall Silver Jubilee: every version (1987–present) — The 1987 Silver Jubilee heads and combos (2555, 2550, 2553, 2554, 2558), the 1996 2555SL, the 2555X reissue and the 2525 Mini Jubilee. Versions: Silver Jubilee heads: 2555, 2550, 2553, Silver Jubilee combos: 2554, 2558, 2555SL signature edition, 2555X reissue, 2525H / 2525C Mini Jubilee.
• Mesa/Boogie Rectifier: every version (1992–present) — The two-channel Dual and Triple Rectifier (revisions C–G), the three-channel Rectifiers of 2000, the Multi-Watt heads, the 50-watt Single Rectifier and Recto-Verb, the Road King and the Mini Rectifier. Versions: Dual Rectifier, two channels (revisions C–G), Triple Rectifier, two channels, Dual and Triple Rectifier, three channels, Multi-Watt Dual and Triple Rectifier, Single Rectifier Solo 50 and Recto-Verb, Road King and Road King II, Mini Rectifier Twenty-Five.
• Peavey 5150 and 6505: every version (1992–present) — The original 5150 head and 2×12 combo, the 5150 II, the 6505 and 6505+ that replaced them in 2005, and the 6505 MH mini head. Versions: 5150 head and 5150 212 combo, 5150 II, 6505 head and 6505 212 combo, 6505+ and 6505+ 112 combo, 6505 MH mini head.
• Soldano SLO and its relatives: every version (1987–present) — The SLO-100 Super Lead Overdrive, the Japanese-made Super Lead 60, the SLO-derived Hot Rod 50 and 100, and the SLO-100 Classic. Versions: SLO-100 Super Lead Overdrive, Super Lead 60 (SL-60), Hot Rod 50 and Hot Rod 100 (and Plus), SLO-100 Classic.
• Hiwatt Custom (DR) series: every version (1967–1984) — The Sound City 100 heads that came before Hiwatt, the DR103 Custom 100, the DR504 Custom 50 and its SA combos, and the DR201 Custom 200 and DR405 Custom 400. Versions: Sound City 100 heads (Hylight-built), DR103 Custom 100, DR504 Custom 50 and SA combos, DR201 Custom 200 and DR405 Custom 400.
• Orange Graphic and OR series: every version (1968–1970s) — The Orange/Matamp heads of 1968–71, the pictogram-only “Pics Only” Graphic heads and the “Pics & Text” OR120 and OR80 of 1973 on. Versions: Orange/Matamp heads, Graphic “Pics Only” heads, OR120 and OR80 “Pics & Text”.
• ENGL Savage 120: every version (1993–present) — The original Savage 120 (E610) and the Savage 120 Mark II (E610II). Versions: Savage 120 (E610), Savage 120 Mark II (E610II).
• ENGL Powerball: every version (2002–present) — The original Powerball (E645) with shared gain controls, and the Powerball II (E645/2) with four independent gains. Versions: Powerball (E645), Powerball II (E645/2).
• Bogner Ecstasy: every version (1992–present) — The original Ecstasy 100A and 100B and the Ecstasy 101A and 101B that replaced them in 1995. Versions: Ecstasy 100A / 100B, Ecstasy 101A / 101B.

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