412 RECT Essentials


This product was added to our catalog on September 26, 2022.

Cabinet and Speaker Type

The 412 RECT Essentials wave audio format impulse response library is based on measurement data from and seeking to recreate the sound of a MESA/Boogie® Rectifier® Standard (Oversized) 4x12 closed back cabinet loaded with 2003 Celestion® T4335 Vintage 30 speakers.

This particular combination - largely the result of the unique tonality for this narrow space in time of this speaker model's production - results in a sound that is full yet tight in the lows, authoritative and forward in the mids, and smooth on top, with just enough bite to cut through a dense modern mix when paired with the right mic/mix selection.

The lack of overly whomping low end and harsh high end makes this file set incredibly versatile, and useful for a multitude of styles and applications.

Feature Set

  • 10 single mics (7B - 57 - 58 - 87 - 121 - 160 - 414 - 421 - 441 - 906)
  • 10 core mixes
  • 80 (r)Evolution mixes
  • 90 mic pair mix permutations
  • captured through major production/mastering grade signal chain

File Format

Wave Audio (.wav)

Wave audio format IR's (.wav) are compatible with convolution reverb type loaders in recording software and outboard hardware units. The files in this library are:
  • 24 bit resolution
  • 44.1, 48, 88.2, and 96 kHz sample rates
  • minimum phase transformed
  • 208 millisecond Mono



  • The copyrighted intellectual property contained in this product is licensed, not sold. It is not legal to redistribute, resell, or create derivative works from the content contained in this product. For further information, see the included End User License Agreement (EULA).

  • All sales are final. No refunds, exchanges, or credits will be issued under any circumstances with exception to the case of accidental duplicate purchase.


Included File 01:

Software & Plugins

Currently In Development
Impulse Responses

Fractal Audio Format
Line 6 Format
Wave Audio Format
Info & Support

About Us
Account Help
I.R. Tutorials
Privacy Policy
Shipping & Returns
Terms of Use

Want to be informed of all the latest news, product releases, product updates, and sales events by email?

Join Our Newsletter