ADDAC System 200PI (????–Present)
That little module you didn’t know you needed—until your pedalboard starts whispering sweet nothings to your modular rig.
Overview
The ADDAC200PI Pedal Integrator isn’t flashy. It doesn’t make sound. It doesn’t sequence, modulate, or oscillate. But if you’ve ever tried to plug a trusty delay or reverb pedal into your Eurorack setup and ended up with either a silent disaster or a blown input, you’ll understand why this unassuming 4 HP brick is quietly revered. Manufactured by ADDAC System, the 200PI is a utility module designed for one job: letting external effects pedals talk to your modular synth without shouting over each other. It’s part of the ADDAC200 Series, a lineup of compact tools built to smooth out the rough edges of patching, and while it doesn’t grab headlines, it solves a real-world problem with surgical precision.
This is the module that says “yes” when your setup says “no.” You’ve got a killer vintage analog delay pedal that lives on your guitar board. You want that smeared, warbly echo on your modular bassline. But Eurorack outputs are hot—way hotter than what your pedal expects. Plug it in directly, and you’re either distorting the input or risking damage. Then, on the way back, your pedal’s output is too weak to properly drive a modular input. The 200PI fixes both. It’s a two-channel send/return interface that lives in your rack, translating signal levels like a polyglot at a synth convention. No more guessing, no more noise, no more fried gear. It just works.
Specifications
| Manufacturer | ADDAC System |
| Product Type | Eurorack module |
| Width | 4 HP |
| Depth | 30 mm |
| Power Consumption | 10mA @ +12V / 0mA @ -12V |
| Power Consumption (5V) | 0 mA |
| Jack Sockets | 3.5mm and 6.3mm |
| Channels | two |
Key Features
Two-Channel Send/Return with Dual Jacks
Each of the two channels on the 200PI includes both send and return jacks, and here’s the thoughtful touch: every jack is available in both 3.5mm (eighth-inch) and 6.3mm (quarter-inch) formats. That means you don’t need adapters, breakout cables, or awkward workarounds when connecting to standard guitar pedals. Plug in with whatever cable you’ve got—your pedalboard won’t care, and neither should you. This dual-jack design is more than convenience; it’s a recognition that Eurorack and pedal worlds use different dialects of audio connectivity, and the 200PI speaks both fluently.
Synth-to-Instrument Level Attenuation
The send path is where the 200PI earns its keep. Eurorack outputs typically run at line or modular level—around 10Vpp—while guitar pedals expect instrument level, closer to 1Vpp. Without attenuation, you’re slamming your pedal’s input with way more signal than it can handle. The 200PI’s send channels actively attenuate the signal down to instrument level, protecting your effects and ensuring clean, undistorted processing. It’s not just a passive pad; it’s an engineered step-down that preserves tone without introducing noise or loading issues.
Instrument-to-Synth Level Amplification
On the return, the reverse problem happens: your pedal outputs a weak instrument-level signal that’s too quiet for Eurorack inputs. The 200PI boosts it back up to modular level, ensuring your processed sound integrates cleanly into your patch. The return channels include amplification specifically tuned for instrument signals, so you’re not just turning up the volume—you’re matching impedance and gain structure for a transparent return. Owners report a clean, neutral pass-through with no coloration, which is exactly what you want from a utility module: get out of the way and do the job.
Collectibility & Value
The ADDAC200PI isn’t a rare grail, but it’s a sought-after tool for modular users who run hybrid setups. As of current listings, the DIY kit version sells for £24.75 to £29.25, making it an accessible build project for those who enjoy soldering. Pre-built units range from $78.00 to $102.00, with some retailers listing them from $102.00. There are no widespread reports of common failures or reliability issues—owners note it’s been rock-solid in practice. Given its passive-heavy design and straightforward signal path, there’s little to go wrong, and no maintenance routines have been documented. It’s the kind of module you buy once and forget about—until you realize you couldn’t live without it.
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