- All your desired parameters under control
- Single amplifier stage for both compression and expander
- Adaptive analog time controls
- Parallel transient manager on compressor
- Sidechain insert and input capabilities
- Routable sidechain insert
- to compressor, on unprocessed sound
- to compressor, on processed sound
- to expander
- Active filter on power
- Discrete buffered output stage
- DC coupled internal audio path
Professional audio engineers often face a wide range of challenges on a daily basis, many of which refer to dynamics processing.
Recording different instruments, with different microphones, and even with different players: every task usually requires specific tools to be appropriately managed in the mix. At least until now.
We designed Dynamics 2806 with the professional environment in mind, where time matters and one must always be ready to solve every problem with clever solutions as fast as possible.
Dynamics 2806 is these solutions.
Dynamics 2806 is a mono compressor and expander. The circuit is relatively simple and straightforward to preserve the original sound qualities (it features a single VCA stage); still, the ways that all the parts interact with each other (and with the user) create a wide variety of behaviors that dramatically expand its functionalities in the box.
The upper section of the front panel sets the compressor parameters, and the lower part sets the expander ones. The interface is pretty much self-explanatory, but an expanded signal routing and lot of original solutions ‘under the hood’ make the response of the controls quite distinct.
While controls like ‘Ratio’ and ‘Threshold’ are quite conventional, the behavior of the ‘Attack’ and ‘Release’ knob was designed to interact with the incoming audio source by slightly adapting the response time to the articulation of the sound. In this way, the dynamics may be compressed or expanded, the original nature of the sound remains recognizable.
A peculiar control, on the other hand, is the ‘Transient’, which relates to the time management just mentioned. Since some sounds may have an extremely sharp and loud attack followed by a long, soft decay, conventional dynamic processing may alter their nature too much and make them lose their original footprint. The ‘Transient’ control is specifically designed to preserve the sharp transient of these sounds, without compromising the rest of the audio processing.
Since dynamics also has a lot to do with perception, and perception has a lot to do with frequencies, the Expander section features precise controls for high and low pass filtering so that the circuit will operate only over the right spot.
The two silver knobs at the center set the final amplitude of the processed and unprocessed sound for precise parallel treatments.
The compressor section has a feedback design, but its feedback point can be selected via a ‘Pre’ or ‘Post’ switch: it can be either straight out the VCA, or after the ‘Processed’ output, for precise make-up.
Flexible sidechain capability allows for external input processing or advanced insert operations, such as for de-essing. Moreover, the external signal can perform compression or expansion, and the compression can happen either on the primary, unprocessed sound or on the already-processed signal, with a ‘Sum’ switch.
A ‘Listen’ switch lets you monitor the sidechain of either the compressor or the expander, for precise settings (especially of controls such as ‘Contour’ and filters.
Finally, you can (true-)bypass the Dynamics 2608 as a whole with the dedicated switch, which lets you also bypass the processing section only, thus retaining the VCA “color.”
Sidechain Insert and Input
A versatile sidechain circuit welcomes a second input which can be used to drive the compressor or the expander. The external sidechain compression can be performed over the primary signal at its initial stage or even after it has already been processed by the compressor.
Adaptive Analog Time Controls
A significant component of what we call the ‘dynamics’ of a signal is the distribution of its energy over time: for this purpose, a proper time regulation was one of the priorities of the Dynamics 2608. It is finely calibrated to react to the incoming sound according to its articulation: faster with fast sources, slower with slow ones.
Parallel Transient Management
Some sounds have quite an odd development over time, such as a high-intensity, super-fast attack, followed by a long, quiet tail. (This is the case with the trumpet, for example.) Handling the transients of those sounds while compressing is often quite hard: Dynamics 2608 offers a dedicated Transient control to tune even the sharpest attack carefully.
Unique Amplifier Stage
‘Entities should not be multiplied without necessity,’ says the Ockham’s Razor. Following this approach, we designed an articulated device, capable of complex dynamic processing, with just a single VCA stage: by doing so, we minimized the possible causes of sound deterioration, and kept the architecture light and responsive.
Feedback Compressor Design, With a Twist
Dynamics 2806 works with a feedback design, but the feedback point can be selected via a switch: the sound to be fed back into the compressor can be picked either after the VCA or after the ‘Processed’ level knob, which provides more control over what is often called ‘make-up’ gain.
Here to Stay
We refuse the idea of obsolescence, and we want our products to be the lifelong partners of every professional audio engineer. Dynamics 2806’s design allows for easy maintenance and reliability over time through careful choices in terms of design, assembly and individual components.
Active Filter on Power Source
Active filter stages per each section are used to guarantee the best performance regardless of their application environment.
Unconventional Output Stage
After choosing a Lundahl LL1585, one of the best output transformers available today, we designed an audiophile-grade discrete output current stage to feed the transformer with the most pristine sound possible.
DC-Coupled Internal Audio Path
Following our philosophy of simplicity, we avoided signal deterioration by removing unnecessary decoupling capacitors. High-end capacitors are placed on inputs and on insert outputs to prevent damage followed by incorrect connections (e.g., phantom power) or defective source with DC offset.