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based on a ’71 Marshall™ 1960A guitar cabinet, loaded with Celestion™ G12M25™ „pulsonic cone“ pre rola speaker from 1971.

Included in the UK Triple Collection VOL.3 with +33% OFF.

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Data sheet

Feature-Setpro IR series
Based onMarshall™ 1960A
SpeakerCelestion™ G12M25 pre rola
IR quantity644
Used microphonesShure™ SM57; Sennheiser™ e906; Sennheiser™ MD421; AKG™ C414 XLS; sE Electronics™ X1R; Shure™ SM7B; Sennheiser™ MD441; Behringer™ ECM8000; AKG™ C451
Power Amp voicingIdealized-NULL-Amp; Push-Amp; Tube-Amp
IR formats.WAV exclusive - 170ms/500ms: 44.1kHz-16bit | 44.1kHz-24bit | 48kHz-16bit | 48kHz-24bit | 96kHz-24bit
Hard- & Software platforms supportetFractalaudio™ Axe-Fx II /XL, AX8 | Line6™ Helix | Atomic™ Amplifire | Yamaha™ THR100H /HD | Two-Notes™ Torpedo | AMT™ Pangaea | Logidy™ Epsi | Headrush™ Pedalboard | All software based Amp modeler | All convolution host platforms | and many more

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This IR library is included in the UK Triple Collection VOL.3 with +33% OFF.

...some specs about the cab

This cabinet from 1971 with „chequeboard“ grill cloth replaced the older „basketweave“ grill cloth and introduced the 70s.

Loaded with original and highly demanded pre rola G12M25 (Celestion™ T1221) Greenbacks, this cabinet is for sure one of the most wanted and favored cabinets from Marshall™. Speaker D (upper left) is aged naturally over the years and gives the whole cabinet its very unique and special sound.

This cab works perfect for Classic Rock and Hard Rock.

  • Lots of options, huh? Dude, we PROMISE: You won`t be overwhelmed! All `pro IR series` libraries provide QUICK SATISFACTION and EASINESS just as well as all the options, PRO USERS may looking for! LEARN MORE how to NAVIGATE and find YOUR IR complement FAST & PRODUCTIVE for your individual signal chain on the FOLLOWING SLIDES!

    pro IR series - feature set & IR structure

  • Just listen to the 5 `I_dealized NULL Amp` MULTI mix IRs (appendix _I). STAY with the one, you LIKE most. CONGRATS - you`re DONE! QUICK & EASY, right? The OVERVIEW folder recap all the well balanced MULTI mix IR representations of the whole guitar CAB or individual speaker A, B, C & D.

    Start from the OVERVIEW folder! Don`t wonder, if your search ends right here!

  • Just jump DIRECTLY into the MIX folder of your prefered Speaker A, B, C, D or the whole CAB, if you MAY WANT try some more flavours of your mostly liked MULTI IR.

    Favor Speaker A? Ready for some more flavours?

  • The MIX-Speaker folders contain 30 BY EAR selected microphone PAIRS.

    ... or IR mixes from speaker B?

  • The `M` in front of the two digits stands for MPT (minimal phase transform). Those 15 MPT mixes each MIX-Speaker folder provide are perfectly time aligned and support generally a more OPEN & DIRECT `in your face` sound, like a single miced cabinet will do.

    ... or IR mixes from speaker C?

  • The `R` in front of the two digits stands for RAW (including real phase & authentic running time). Those 15 RAW mixes each MIX-Speaker folder provide will have in general a SMOOTHER top-end and can be rich of `CHARACTER`.

    ... or IR mixes from speaker D?

  • The MIX-Cabinet folder include mix IRs including ALL speakers of the cabinet. Beside the MULTI mix, you`ll find mixes with certain microphones. You want the whole CAB, but exclusive captured from f. ex. the Shure™ SM57? Here you`ll find it... also again: MPT & RAW variants available.

    ... or whole CAB mixes?

  • Sometimes, just a SINGLE-MIC will do the TRICK! The simplicity of a `ROUGH`, `CUTTING THRU` single Shure™ SM57 in front of the guitar cabinet is demonstrated a million times on all stages of the planet. Well, here you`ll find it. Or...

    Simply looking for a SINGLE-MIC IR?

  • ... take the SINGLE-MIC folders as your source for your OWN IR mixes. Use the MPT folder to mix perfectly time aligned WITHOUT any PHASE ISSUES. Experiment with the RAW variants, if you`re looking for minor real phase cancelations, which can result in more `CHARACTER` and `TOP-END ROLL OFF` effects. As mixing actual guitar cabinets in the Studio.

    Want mixing your individual IR? SINGLE-MICs in MPT & RAW offers all options!

  • You might have seen the REAR & ROOM IRs in the SINGLE-MIC folders? Overlooked? Scroll back and take a look :) The 5 AMBIENCE Stereo Pairs (L_eft + R_right) include CLOSE-MIC + ROOM-MIC + REAR-MIC. Take those as examples, what you could do for your individual mixes, to get some "room in your IN-EAR" fun ...

    Looking for STEREO Ambience?

  • 5 SIGNATURE mixes from Artists Anand Mahangoe (AM) and Thibault de Robillard (TR) as `add-on`. Try it! Perhaps you missed something, if not ...

    We added some SIGNATURE mixes as well!

Manuals - pro IR series - IR-formats - MR-CB71 Speaker-Cab Impulse-Responses USER-GUIDE


Construction4x12" angled box, closed design, standard size
Time of production1971-1975
Year of manufacture1971
Power rating / Watt/Watt100W
Resonance frequency in Hz102 Hz
CommentUnique sound due to strong aging of speaker D

ModelG12M25™ (Greenbacks)
Year of manufacture1971
Power rating / Watt25W
CommentPre Rola Greenbacks, Pulsonic Cone



MY Cab

Sitting in the IR rabbithole for a while now, but out of the tons of IRs i own, this one became "the go-to Cab" in "my studio" - no matter which amp i put on top, it always delivers, just incredibly good sounding ! The only thing i´m missing is a 121 and an U87 ...


    Best Marshall IR

    Sensationell. Genau so muss es klingen.
    Markus Z.

    • 1 out of 1 people found this review useful.

    Classic Marshall Sounds!!

    Amazing IRs!..they blow away the competition by miles! If you want that classic Marshall rock tone..then look no further! Stunning!

    • 1 out of 1 people found this review useful.

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    based on a ’71 Marshall™ 1960A guitar cabinet, loaded with Celestion™ G12M25™ „pulsonic cone“ pre rola speaker from 1971.

    Included in the UK Triple Collection VOL.3 with +33% OFF.