The Headfirst® 412 Brit90 Green is an official DynIR from Headfirst®, captured from — and inspired by — an early 1990s Marshall® “B” style 4×12 cabinet, outfitted with a quartet of Celestion® 6402 reissue Greenback drivers.

When it comes to handcrafted amplifiers and cabinets built for players who demand the real deal, Headfirst® occupy a space defined by authenticity, power and precision. Fusing decades of engineering expertise with a deep passion for tone, Headfirst® design and build each amplifier and cabinet to deliver an unmistakably British voice — dynamic, articulate and unflinchingly musical. Whether on stage or in the studio, every Headfirst® product embodies their philosophy of honest tone, responsive feel and enduring reliability, inspiring players to perform at their very best.

When it comes to defining the sound of British rock, few cabinets have earned the reputation and reverence of the early-90s Marshall® 4×12. With its robust birch ply construction, closed-back design and instantly recognisable sonic signature, this cabinet became a cornerstone for players seeking punch, projection and unmistakable midrange authority. This particular cabinet is also one of HeadFirst’s personal favourites — a trusted reference used to help voice many of their amplifier designs over the years. Reborn through DynIR technology, the Headfirst® 412 Brit90 Green faithfully captures the essence of that golden-era tone — powerful, dynamic and dripping with attitude.

At the heart of this capture, the Celestion® 6402 reissue Greenbacks deliver their legendary vocal midrange, creamy breakup and warm compression that guitarists have relied on for decades. These speakers retain the character of the classic G12M while offering a slightly tighter low end and smoother high-frequency response, making them perfectly suited for everything from vintage crunch to modern gain. Combined with the resonant “B” style enclosure, the result is a tone that feels alive under the fingers — rich in harmonic texture, balanced in the mids and effortlessly musical at any volume.

For players chasing the definitive British rock experience — the sound of classic Marshall®s pushed into the sweet spot — the Headfirst® 412 Brit90 Green delivers with authenticity and authority. Expect solid lows, a throaty midrange growl and a smooth, singing top end that translates touch and dynamics with precision.

Available individually or as part of the “Headfirst® Alpha DynIR Cabinet Collection”, the Headfirst® 412 Brit90 Green has been exquisitely captured using studio-grade microphones and recording peripherals to deliver the perfect blend of primo tone and seamless adaptation from the studio to the stage.