SPL TwinTube

Get Warm Tube Tone right from your DAW!


SPL’s TwinTube is one of those magical devices that make subtle changes that result in a huge improvement in your tracks. Simply adding a bit of TwinTube’s analog tube warmth can dramatically improve vocal and instrument tracks. TwinTube also increases perceived loudness without changing actual gain, making it an incredibly useful tool to have in your signal-processing arsenal.

All the character, tone, and utility of the hardware version is now available as an Analog Code® plugin. As with all of SPL’s Analog Code plugins, the TwinTube is an exacting software model of the original analog hardware processor.

TwinTube combines two essential tube effects in a single processor: saturation and harmonics processing. Both stages process the signal separately, so you can apply them individually or combine them.

Harmonics processing can be applied to four different fundamental frequency bands to improve presence and clarity with minimal affect on signal levels. The saturation control behaves similarly to tape saturation, adding warmth and density, regardless of sound source.

The Analog Code®
During listening tests of this technology, a hardware developer remarked that SPL had “cracked the Analog Code!” and in the process, coined the name of SPL’s software product line.

Download the fully functional 14-day demo today to hear for yourself! (No dongle required!)


  • Precisely modeled plugin version of SPL’s world-class tube effect processor
  • Tube and tape saturation effects
  • Increase perceived gain without increasing level
  • Subtle coloring to dramatic distortion with a simple knob tweak.
  • Harmonics and saturation controls that can be used separately or combined
  • Works magic on a wide variety of signals including vocals, acoustic guitars, drums, brass, and more
  • Store up to four different sets of adjustments.
  • Mouse Wheel control for rotary controls and faders.

Audio Examples


  • Soundprank

    This plugin delivers vacuum tube saturation for days, from subtle warmth to dirty grunge, it sounds fantastic on digitally harsh sounds, and absolutely KILLS on vocals and brassy material.


Supported Plugin Formats
AAX DSP, AAX Native, AU, AudioSuite, RTAS, TDM, Venue 32-bit, VST2, VST3

Supported Operating Systems
OS X 10.6 or higher in 32- or 64-bit
Windows XP, Vista, Win 7 & Win 8 in 32- or 64-bit

Intel CPU only (minimum 2 GHz recommended)

Intel-compatible CPU with SSE2 instruction set (Pentium 4 compatible or higher; minimum 2 GHz recommended)

System Requirements
Display resolution: 1440 × 900px or 1280 × 960px or higher
Memory: 2 GB RAM