Mercuriall Audio Software

Tube Amp Ultra 530

VST/AU/AAX plug-in for PC/Mac

This is an old version of U530. We no longer offer it for sale.
U530 is now part of Mercuriall Ampbox platform. You can learn more about it here.


Tube Amp Ultra 530 VST/AU/AAX plug-in (briefly U530) based on the popular sound studio preamp ENGL® E530, having a wide range of tone. On this basis, you can customize the sound of the powerful hi-gain to bright crunch and crystal clean tone. We hope that many musicians will use U530 in their arsenal.

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No waveshapers, and EQ. We use only clean solution of nonlinear differential equations for the most realistic simulation. Tube Amp Ultra 530 (U530) is full circuit simulation of E530 preamp. Furthermore, the U530 has additional features. Simulation of three 12ax7 dual triode models. From old RCA triode to fresh RSD. Allowed processing samplerates at 44.1 48 88.2 96 Khz. Two computing engines make same things but in different way. Fast computing engine based on usage Artificial Neural Networks to approximate nonlinearity of solution nonlinear differential equations. Precision computing engine - for just-in-time solution of nonlinear differential equation at circuit simulation.

Topology of E530 Lead Hi channel
Preamplifier section is modeled so accurately that it is impossible to distinguish the sound of U530 and E530. Here are the reasons under which the U530 is better than the E530:

E530 U530
It occupies a place in the rack and require proper wire connection to the analog audio interface. No loss of quality due to analog-digital conversion when re-amping.
To record multiple tracks you need more than one E530. You can use more than one instance of U530 at same time. Allowed number of U530 instances depends on your CPU performance.
Transistor poweramp section without controlling. Class A poweramp section with Precence and Master controls. Master control can be used for extra warm up your sound.
Two-positional contour switch Three-positional contour switch. Added position for modeling tonestack of tube toner E430.
Coarse cabinet simulation by filtering. No position control and cabinet changing. Four different cabinets. 2-D Microphone positioning. Poweramp takes into account the different properties of the cabinet resonance.
It is not possible to quickly change the tubes. You can quickly switch to one of the 3 models of tube.
The level of the signal coming from the guitar is insufficient to unleash the potential of the Clean Lo channel. To unlock the potential of the Clean Lo channel has a boost mode (Lo Clean Boost switch) that raises the level of the input signal in 2 times (only for Clean Lo channel).

Product Details

Supported platforms and formats:

Mac: VST2 x64, VST3 x64, AU x64, AAX x64 (Pro Tools 11 and newer)

PC: VST2 x64, VST3 x64, AAX x64 (Pro Tools 11 and newer)

Preamp section:
  • Based on ENGL® E530
  • Channels: Clean, Crunch, Soft Lead, Heavy Lead
  • Tonestack: 3 band EQ for Clean/Crunch, 4 band EQ for Soft/Heavy Lead
  • Other controls: separate channel volumes, preamp defeat switch, Bright switch, Contour switch.
  • Tubes: 12AX7-RCA, 12AX7 Tung-Sol, 12AX7-RSD
Amp section:
  • Class-A Tube Amplifier based on pentode 6V6 with feedback loop and Presence control.
    Poweramp section take into account cabinet resonance properties. If Cabinet simulation switched off, poweramp section operates in neutral mode witch make you possibilities to use your own impulse responses captured with coloring of poweramp tubes.
Cab section:
  • Cab based on Bogner® Uberkab 412 - 4x12 Celestion G12T-75
  • Cab based on Marshall® 1960B - 4x12 Greenback
  • Cab based on Marshall® 1960B - 4x12 JBL K120 (vintage)
  • Cab based on popular American metal cab - 4x12 Celestion V30s
  • Microphone used: Shure® SM57
  • Cabinet IRs by Redwirez
FX section:
  • Stereo Chorus
Additional settings:
  • Quality (oversampling): no, x2, x4, x8
  • Samplerate: 44.1, 48, 88.2, 96

Additional features

Additional modes for clean and lead channels: Lo Clean Boost increase input signal level twice for Clean Low mode to better warm up tube stages. E430 turn Lead channel tonestack to tonestack of E430 floor preamp. Stereo chorus for stereo widening adds more character to the clean sound. All sections can be switched off separately. It provide you possibility make plugin chain and insert another plug-in inside U530 processing pipeline.

Minimal System Requirements

PC Mac
CPU Intel or AMD with SSE2 support Intel Core 2 or newer
OS Windows Vista or later OS X 10.13 or later
DAW VST 2.4 compatible or Pro Tools 11 AU or VST 2.4 or AAX64 compatible
RAM 2 Gb 2 Gb
Disk Space 44 Mb 83 Mb

U530 Plugin - Demo

U530 Plugin - Review  


Compare U530 & real E530

All speaker cabinet IRs are Copyright 2009-2018 by Red5hift, LLC dba Redwirez. ALL RIGHTS RESERVED