Add some professional polish to your sound with the Erica Synths EDU DIY Compressor, a simple diode-based compressor that can shape the dynamics of your sound and add punch and consistency to your patches. Use the compressor module to beef up bass lines, add sustain to leads, or tame the peaks of your percussion.

The Compressor module is part of a DIY educational series that's designed to not only help you build a synthesizer from scratch but delves into the design and how components are chosen. The included 71-page manual takes you through the circuit-design process step-by-step, explaining every choice that was made and how it impacts the finished module. The kit includes the circuit board, electronic components, and mounting hardware. If you've ever wanted to learn how to build a synthesizer but were intimidated by the process, these educational DIY kits are your perfect solution.

Note: Erica Synths will replace missing or faulty kit components, but because documentation is provided, there is no tech support or warranty. This is a DIY electronics kit and requires separately sold tools such as a soldering iron, multimeter, oscilloscope, wire cutters, etc. Erica Synths recommends using a breadboard to test the components before you build the module to verify that they are all functional. A Eurorack case and power supply are also required but not included.

Developed for Educational Purposes    For Beginners with Little Experience    Learn How to Design Synthesizer Circuits    Includes 71-Page Manual    Simple Diode-Based Compressor    Shape the Dynamics of Your Sound    Add Punch and Consistency to Patches    Includes Circuit Board and Components    Includes Front Panel

• Mono compressor with audio input and side-chain input
• Input Gain control
• Makeup gain control
• Ratio and Threshold controls
• Attack and Release controls
• Includes 71-page manual
• Access to free CircuitJS, a browser-based circuit simulator

Related Questions and Answers

Q: 1. Does it need calibration like the the c800?

A: The L-858D-U is already calibrated by the manufacturer.

Q: 2. Why does the manual say "Do not use at altitudes above 2,000m (6,561 feet)"?

A: It is due to cooling at high temperatures.

Q: 3. Where can I buy the magnetic adapter?

A: Please see attached link for BH #HAHLM600CL • MFR #HL-MODULE-600CLAMP and for B&H # HAHLM360CL MFR # HL-MODULE-360CLAMP 360: https://bhpho.to/3oeaGuS 600: https://bhpho.to/3pN8Scv

Q: 4. Can I use to this on profot A1 series flash and if so do I need to buy an adapter for it?

A: Unfortunately, this kit is not compatible with the Profoto A1. A compatible kit to start with is the Profoto Gel Kit for A1 Flash, BH # PRA1GK along with any gels of your choice. https://bhpho.to/2VVBy69

Q: 5. What is the life-expectancy of the LCD touch screen?

A: There is no specific information about The LCD life-expectancy for the Sekonic Speedmaster L-858D-U Light Meter. I can say from personal experience that Sekonic light-meters are as robust as they come, most cinematographers and photographers only need to buy one in their lifetime.

Q: 6. when you have a Godox XPro F TTL trigger on the camera but using the Sekonic to dial in the lights, does the trigger on camera automatically adjust, or reflect your changes you made on the Sekonic? Or do you have to hit some button on the trigger to reset/refresh every time? And if once you're shooting you notice one light needs to be dialed up or down, can you adjust from the trigger on camera and will the Sekonic adjust the value as well? Just wondering so that during a shoot it's not too confusing.

A: I contacted Sekonic regarding your inquiry. According to Sekonic, they state you will need to place the Godox transmitter in App mode. Go to [Menu], shoot and then select [App}. This would put the transmitter into trigger only mode so it will not effect the setting made by the Sekonic meter.

Q: 7. Why is the Sekonic Broncolor Transmitter Module a recommended accessory when it comes with the kit?

A: While not necessary since this SKU comes with the Broncolor transmitter module, we've listed it under the recommended accessories so customer with just the light meter would be able to quickly find the necessary module for Broncolor's radio triggering protocol if they were looking to "upgrade", per se.

Q: 8. Hi, does this work in a 4x4 mini Rolleiflex? thank you very much!

A: As long as your Rolleiflex is the one that is made for 127 format film, the Arista EDU Ultra 400 Black and White Negative Film (127 Roll Film) should work. Note there are a few versions of that camera that uses 220 and 120mm film.

Q: 9. When using the reflective metering on the Sekonic 858D, does anybody notice any fuzziness, or slightly out of focus appearance in the image when looking through the lenses to do the spot metering?

A: Once adjusted the spot meter is cristall clear. Bear in mind that it might take quite a few turns of the diopter ring (eye side) to accomplish sharp view.

Q: 10. What is the difference between L 858 d-u and L 858 d?

A: L-858D-U is the US version, the d-u is the international version and the difference would be in the frequency at which they opperate.