Real tube warmth for your digital audio.

Physics-based triode modeling with Koren equations at 8× oversampling. True harmonic distortion from real circuit simulation, not just an EQ curve.

Mac App Store iOS App Store
No Subscriptions AUv3 Compatible System-Wide on macOS
Audiophile mode iOS Pro Studio
Ecosystem

Two platforms, one analog soul.

The same physics-based tube model on macOS and iOS. Buy once, use on both.

macOS

System-wide tube warmth for Spotify, YouTube, Apple Music, etc. Also includes an AUv3 plugin for Logic Pro, GarageBand, and other hosts.

iOS & iPadOS

Studio tube sound on iPhone and iPad. Works standalone or as AUv3 in GarageBand, AUM, Logic Pro, and any host.

Core Engine

Real circuits, real harmonics.

Real vacuum tube physics. Every harmonic comes from the Koren triode model running at 8× oversampling.

Koren Triode Model
E1 = (EP⁄kP) log(1 + exp(kP(1⁄μ + EG⁄√(kVB + EP²))))
IP = (E1X / kG1)(1 + sgn(E1))

9 tube types

12AX7, 12AT7, 12AU7, 12BH7, 6SL7, 6SN7, 6922, 6H30, ECC99. Each with unique Koren parameters and harmonic character.

Real-time THD chart

Live Total Harmonic Distortion analysis. See THD, THD+N, H2 and H3 levels as you adjust parameters. No other plugin shows this.

8× oversampling

Heavy saturation generates high frequencies. Custom oversampled engine ensures your high-end stays smooth, never harsh or aliased.

Tube aging emulation

Three aging levels (New, Worn, Old) plus Pro knobs for specimen spread, drift, shot noise, and mu degradation.

Shared PSU coupling

Stereo channels share a virtual power supply. Loud passages on one channel sag the other, just like real tube amps.

Transformer saturation

Output transformer model with core saturation, resonance peak, bass phase shift, and phase dispersion for authentic iron tone.

Live Analysis

See what you hear.

Real-time THD vs. input level chart built into every mode. Watch harmonic distortion grow as you drive the tubes harder. Select different tube types and see how each one colors the sound.

THD vs Level

THD
0.00%
H2
—
H3
—
-40-30-20-12-6-2 dBFS
THD THD+N
Pro Mode

Build the circuit,
shape the tone.

Go beyond presets. Dial in exact tube character with real circuit parameters from classic amplifier designs.

Factory Presets
Golden Glow British Chime Liquid Presence Velvet Bloom Crystal Air

Inspired by real tube circuits from classic preamps, guitar amps, and hi-fi amplifiers.

9 Tube Types
12AX7 12AT7 12AU7 12BH7 6SL7 6SN7 6922 6H30 ECC99

Triode Operating Point

Plate voltage, plate resistor, grid bias, Mu Scale. From clean headroom to asymmetrical clipping.

Plate V
Bias
Mu

Power Supply Dynamics

Rectifier resistance, filter cap, reservoir. From stiff solid-state to saggy GZ34 tube rectifier.

Rect R
Filter
Res

Output Transformer

Core saturation, resonance frequency and Q, bass phase shift. The soul of the amp's voice.

Xfmr
Reso
Q

Advanced Circuit

Coupling cap, cathode bypass, NFB ratio, grid leak, interstage drive.

NFB
Bypass
Drive
Sound Demo

Hear it for yourself.

Listen to TubeSound shape real music in real time.

Get TubeSound

Available on the App Store.

No subscriptions. Buy on either platform, get both.

macOS

Free to try · One purchase unlocks everything
  • System-wide: Spotify, YouTube, Apple Music, etc.
  • AUv3 plugin for Logic Pro, GarageBand, etc.
  • 23 Audiophile presets + Pro mode with 9 tube types
  • 5 Pro factory presets + unlimited user presets
  • Real-time THD chart
  • Also unlocks iOS & iPadOS
  • Trial: 3s silence every 60s
Mac App Store

iOS & iPadOS

Free to try · One purchase unlocks everything
  • Standalone + AUv3 in GarageBand, AUM, Logic Pro, etc.
  • iPhone & iPad
  • 23 Audiophile presets + Pro mode with 9 tube types
  • 5 Pro factory presets + unlimited user presets
  • Real-time THD chart
  • Also unlocks macOS
  • Trial: 3s silence every 30s
iOS App Store