u-he Twangstrom Spring Reverberator

SKU: SW-01804

฿ 2,230

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u-he Twangstrom was created to bridge the gap between vintage spring reverb charm and modern sound design capabilities. Traditional spring reverbs offer a distinctive metallic, splashy texture that has become iconic in genres like surf rock, dub, and experimental music. However, they are often limited in scope and flexibility. Twangstrom was developed to preserve that authentic spring vibe while pushing the creative boundaries with advanced modulation, stereo manipulation, and real-time responsiveness. By physically modeling spring tanks and combining them with a powerful modulation engine, u-he delivers a tool that satisfies purists seeking analog realism and modern producers looking for expressive sound design potential.

Key Highlights

Physical Modeling of Real Spring Tanks – Three distinctive tank types: Small, Medium, and Large, each with unique response and tone.
Extensive Modulation System – LFO, envelope follower, and modulation matrix allow expressive control over multiple parameters.
Built-In Filter Section – Sculpt your reverb tone with resonant high-pass and low-pass filters.
Modulatable Reverb Parameters – Animate decay, tension, stereo width, and more for evolving spatial effects.
Pre-Delay and Drive – Fine-tune early reflections and saturate the input for a classic tube-style crunch.
Product Highlight Image

A flexible spring reverb box-of-tricks. If you're familiar with Bazille, you might already have come across its built-in spring unit. We took that one, then modelled two more reverb tanks, paired it with drive section, filter stage, envelope, and mod matrix. It emulates a hand-picked selection of the most popular units you will find in classic guitar and instrument amplifiers, recreating the odd character of real springs.

As a faithful emulation of a mechanical device, Twangstro?m needs to be handled well. Many of the technical parameters are user-adjustable in real time, and these can be controlled via MIDI or using the internal LFO and envelope generator. With its multimode resonant filter, Twangstro?m is a unique and powerful tool which can deliver highly unusual, evolving textures… especially when the signal is tossed around using the modulation matrix!

Shakeable springs

Hitting your computer won’t make Twangström shatter, so we added a twang control. This is used to shake the springs, either manually or through modulation and automation. You might think this is a gimmick for which you have no further use (apart from waking up the neighbours), but if you modulate it slightly, everything comes to life!

Tank controls

Twangström's reverb is based on physical modelling. As opposed to plug-ins based on impulse responses (IR), our approach mimics the physics of mechanical reverberation. By simulating the wavefront travelling through a medium, we can include all the aspects of excitation, reflection, dispersion, interference, and other audio properties. Twangström does not mimic the sonic result, but simulates the physical device. This means that all dimensions of the device are controllable in realtime, on a per-sample-basis – which all boils down to quite some power at your fingertips!

Envelope

The envelope in Twangström features 4 different modes and can pick up the signal from either input, output or external sidechain. You can select between Envelope Follower, Attack and Decay, Attack and Release, or Cyclic modes. The last one is similar to a 2-stage LFO. Shown controls will adapt to the selected mode, with Threshold not appearing while in Envelope Follower mode.

Modulation Matrix

The modulation matrix has three general purpose modulation slots, and yes, you can select shake as one of many targets to modulate the Twang control!

Low Frequency Oscillator

The LFO features different time bases, including a non-synchronized one measured in seconds. Synchronized options include both dotted times and triplets. There are 8 different waveforms to choose from, with 2 of them being stepped or glide random shapes.

Video

Youtube video

Features

Shakeable springs
3 different reverberation tanks, inspired by the most popular ones built in the guitar & instrument amps that made rock 'n roll
Tasty drive & tone stage for heating-up and colouring the sound
Multi-mode filter, with variable type blend
Four-flavours envelope stage, picking up the signal from either input, output or external sidechain
LFO module, 8 different types & waveforms, variable time base & syncable
Comprehensive modulation matrix, for realtime control of all the parameters
Independent input and feedback routing options allow all possible stereo or mono combinations
76 factory presets, NKS-compatible
UI instantly resizable from 70% to 200%
Custom remote control via MIDI CC, 14-bit resolution option

Notes

Twangström is not a standalone product, it requires host software. Twangström is compatible with nearly all DAWs.

System Requirements

mac

CPU Intel Nehalem or newer, Apple M1
RAM 1 GB
Disk 0 GB
OS Version Mac OS X 10.10 or newer
Additional AAX requires Pro Tools 10.3.7 or later

windows

CPU Intel Nehalem or newer, AMD Bulldozer or newer
RAM 1 GB
Disk 0 GB
OS Version Windows 7 or newer
Additional AAX requires Pro Tools 10.3.7 or later
Electronic Delivery
Pay in interest-free installments
Always providing service with a smile
Electronic Delivery
Pay in interest-free installments
Always providing service with a smile

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u-he Twangstrom Spring Reverberator

฿ 2,230

Electronic Delivery
Pay in interest-free installments
Always providing service with a smile