A slice of music history

The allure of tape machines is easy to understand – that iconic sonic signature that’s been heard on countless classic albums.

Warmth, subtle high-end sweetening, and above all the gentle saturation and compression that glue your tracks together – it’s all yours in the T-RackS Tape Machine 440.

Tape Machine 440
Ampex 440B

The Tape Machine 440 is modeled on the iconic Ampex AG440B stereo recorder. The 440 series dates from the late 1960s and delivers an unmistakably soulful color that made this historic mixing and mastering machine a legend.

This machine became the standard for stereo mix-down since it offers a rounded, solid bass and a silky presence on highs and upper mids, leaving your mixes… finished! Pass your session through the 440, and hear your mix become a record!

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Tape Machine 440

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Using a careful mix of convolution and physical modeling, the Tape Machine 440 re-creates the complex interplay of effects taking place in the analog audio tape recording process, down to the finest detail. From the sonic character of the tape formula, to the movement of the tape over the machine heads, every detail is captured with life-like accuracy.

Add warmth and character, low-end weight, ear-pleasing high end and glue your tracks together with this true-to-life slice of recording history.

Re-creating the magic

Analog tape audio recorders are complex systems. They impart magic to the audio material, lifting the art within the music to a higher level. They add musicality to music.

What a tape machine adds to the audio is the result of a number of interactions amongst several interdependent factors. More than just saturation, compression, or EQ alone, these factors work together, one affecting each other with the dynamics of music, adding a “movement” that goes into the soul of what we perceive.

Decades of music produced on these pieces of artful human engineering have tailored the way we think music should sound. It’s imprinted in our DNA.

Trying to recreate this magic in the digital domain has been attempted since the early days of real-time audio plug-ins, with various degrees of success.

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The T-RackS Tape Machine collection is the culmination of two years of full-time research and development on real world-class machines. Each machine went through a complete electronic and mechanical restoration to bring them perfectly back “to spec” before the scientific modelling process started.

Then IK’s DSP engineering team took each of the stages apart, studied and analyzed them in-depth, thus producing a model of the entire magnetic tape recording process. This model now works in symbiosis with a powerful dynamic convolution engine that captures the full essence of the real machines, creating what we believe is the only way to faithfully bring the complete picture of these complex analog engineering marvels to the digital realm.

The program coming out a professional tape recorder is very similar to the one coming in, just better. It's subtle but you can feel that it is not. This is the essence, and the T-RackS Tape Machine collection faithfully bring all this magic right to your DAW.

4 magic formulas

Choose from 4 different tape formulations, each with its own unique tone:

  • 250: Modelled after the 3M/Scotch 250 formula, it is the most colored of the four formulas. It went in production around 1974 and delivers a warm tone with slightly more distortion and saturation than the other formulas included in the package.
  • 456: Modelled after the Ampex 456 formula, this model went into production around 1974. Perhaps the most widely used tape, it contributed the most to what is considered “the” tape sound. It offers a warm, round tone with a slight touch of saturation that greatly responds to the recording level.
  • GP9: Modelled after the Quantegy GP9 formula, this tape accepts higher levels of signal with minimal distortion and compression. It’s very punchy and perfect for modern, high quality analog recordings.
  • 499: Modelled after the Ampex 499 formula, this tape is designed to handle a great amount of level with minimal distortion and compression. It also exhibits added high frequency definition that makes it perfect for printing “digital-like” recordings, while still maintaining an analog sound.
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Comprehensive Controls

All Tape Machine Collection plug-ins share the same set of controls to enhance the ease of use and allow for quick A-B comparisons among them. Key features include:

Signal path selection: With “Input,” the signal only passes through the input and output electronic stages of the recorders, bypassing the tape. Depending on how the recorder is designed, the “Input” path can sound extremely transparent or just slightly more colored. “Repro” passes your signal through the entire analog recording system: input-> recording amplifier -> recording head -> tape -> playback head -> playback preamplifier -> output stage.

True Stereo: Even a perfectly aligned tape machine will have slight level, EQ and distortion differences between the left and right channels. This is good and part of the analog recording mojo! The T-RackS Tape Machine Collection perfectly recreates these subtle differences to deliver the real experience. If perfectly identical left and right channel processing is a must, simply disable this feature.

Tape Speed: Select the speed of the tape transport between 7.5 and 15 inches per second (“ips”). The higher speed gives you more fidelity, and the lower speed delivers a warmer, rounder tone.

Transport Modeling: Precisely models the behavior of the mechanical transport. Small irregularities in the movement of the tape creates various degrees of sonic alteration to the audio program, especially between the two channels. Keep it on for the magic to happen! In case a perfectly steady performance is needed, just disable the control.

Record Bias: Ideal bias voltage settings provide maximum sensitivity and low distortion. Intentionally overbiasing is a common technique to produce a warmer, gently saturated sound. Underbiasing can be used to nicely boost the high frequencies in a truly unique way and add distortion and other nonlinear effects.

T-RackS Processor

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