
If you wanted all the power of the Dual Envelope Generating Amplifier and also wanted modulatable ADHSR as well as chainable connections to turn dual envelopes into quad, hexa, and indefinite pairs of relative envelopes, then this module will do the trick. Unreasonable possibilities efficiently housed in a quick-to-operate interface make this device quite the platform for mixing sources & oscillators, amplifying them with built in envelope settings, operating parallel envelopes and amps with relative settings, obtaining dual envelope signals for external modulation, tinkering with retrigger and inverson modes, and even modulating the envelope characteristics with a built-in LFO that has trim/bias/shape/BPM controls on board. It’s all there for extensive exploration, but also, none of it is the way when you’re looking to hear a tone quickly.
You’ll find that it works just as the Dual Envelope Generating Amplifier, but offers right-hand IN jacks for modulating the attack/decay/hold/sustain/release values. The modulation signals are passed through the OUT jacks to be chained to the IN connections of another unit. The bias knobs above each pair of jacks allow you to independently nudge the settings of each device in different directions without affecting those downstream. If the IN jacks of the first device are unplugged, the OUT jacks propogate the ADHSR settings from the dials, so you can control all settings from the primary device and orchestrate endless related envelopes with a single set of controls.
The modulation can even be modulated (top right) by using a gate signal to suspend modulation and a trig signal to restart the LFO cycle (same jack).
By integrating a versatile mixer, a dual relative envelope, a pair of parallel amplifiers, a modulation chain expander, and an internal LFO, the Modulatable Dual Envelope Generating Amplifier creates additional opportunities for experimentation, quickens your workflow for rapid exploration, and offers a set of musical envelopes that’ll make your oscillators sing.

Take the Dual Poly Envelope Generator and outfit it with a 5-channel mixer and an integrated amp, while still offering dual relative envelope outputs, and you have the Dual Poly Envelope Generating Amplifier.
Connect a bunch of oscillators and other sources at the left and balance them with individual attenuator and inversion controls. Then add a gate (bottom left) and set your ADHSR values. From output 1 comes envelope-articulated audio, ready to go. The outer ADHSR rings let you derive a second envelope in relation to the first, where each timing can be prolonged or shortened and the sustain reduced or increased, with that envelope acting on an amp to output 2. The two envelopes are also available (bottom right) for being sent to modulate elsewhere.
The Random Variance control creates ongoing random changes in ADHSR settings and between envelopes, providing subtle complexity and more dynamic behavior. Each envelope can be toggled for inversion and for a retrigger mode, where new gate signals reset the envelope back to the start of the attack.
While the gate connection is unplugged, the device simply acts as a mixer. This approach makes it quick to combine waveforms and oscillators to craft a tone, add a gate connection to carve the articulation (possibly in stereo), and derive secondary envelope signals that can be sent to filters and other devices for modulation.
Use the Dual Envelope Generating Amplifier like a catalyst for experimentation.
Take the Dual Poly Envelope Generator and outfit it with a 5-channel mixer and an integrated amp, while still offering dual relative envelope outputs, and you have the Dual Poly Envelope Generating Amplifier.
Connect a bunch of oscillators and other sources at the left and balance them with individual attenuator and inversion controls. Then add a gate (bottom left) and set your ADHSR values. From output 1 comes envelope-articulated audio, ready to go. The outer ADHSR rings let you derive a second envelope in relation to the first, where each timing can be prolonged or shortened and the sustain reduced or increased, with that envelope acting on an amp to output 2. The two envelopes are also available (bottom right) for being sent to modulate elsewhere.
The Random Variance control creates ongoing random changes in ADHSR settings and between envelopes, providing subtle complexity and more dynamic behavior. Each envelope can be toggled for inversion and for a retrigger mode, where new gate signals reset the envelope back to the start of the attack.
While the gate connection is unplugged, the device simply acts as a mixer. This approach makes it quick to combine waveforms and oscillators to craft a tone, add a gate connection to carve the articulation (possibly in stereo), and derive secondary envelope signals that can be sent to filters and other devices for modulation.
Use the Dual Envelope Generating Amplifier like a catalyst for experimentation.
Here’s the polyphonic version of the Dual Poly Envelope Generator.
Quickly build two envelopes by setting your AHDSR with inner dials and deriving a 2nd envelope, using outer ring controls to add or subtract attack/hold/decay/release time or sustain amplitude. Since the 2nd envelope is created relative to the first, there’s a useful linkage for adjustments and experiments. Musically, it’s easier to create modulation relationships of varying degrees of closeness, where, for instance, your filter can sweep with reference to how your amp opens up. It helps create a cohesive yet complex sound.
A Random Variance dial offers moment-to-moment wandering in the settings to recreate analog inconsistency and dynamic diversity. Pushbutton envelope inversion and retrigger (which restarts envelope at 0V attack) modes can be specified separately for the two envelopes. You’ll find that the controls are set up for quick work and experimentation, avoiding lots of wiring, additional knob turning, module switching, and sprawling space demands, yet adding opportunities for interesting ideas.
The envelope and its controls are tuned for snappy behavior on the front end and prolonged evolution on the back end, with decay & release settings going out to 20 seconds, attacks up to 10 seconds, and holds up to 2 seconds, which makes for much gentler transitions.
Pair it up with the 116A Poly Amplifier.
Quickly build two envelopes by setting your AHDSR with inner dials and deriving a 2nd envelope, using outer ring controls to add or subtract attack/hold/decay/release time or sustain amplitude. Since the 2nd envelope is created relative to the first, there’s a useful linkage for adjustments and experiments. Musically, it’s easier to create modulation relationships of varying degrees of closeness, where, for instance, your filter can sweep with reference to how your amp opens up. It helps create a cohesive yet complex sound.
A Random Variance dial offers moment-to-moment wandering in the settings to recreate analog inconsistency and dynamic diversity. Pushbutton envelope inversion and retrigger (which restarts envelope at 0V attack) modes can be specified separately for the two envelopes. You’ll find that the controls are set up for quick work and experimentation, avoiding lots of wiring, additional knob turning, module switching, and sprawling space demands, yet adding opportunities for interesting ideas.
The envelope and its controls are tuned for snappy behavior on the front end and prolonged evolution on the back end, with decay & release settings going out to 20 seconds, attacks up to 10 seconds, and holds up to 2 seconds, which makes for much gentler transitions.