ADDAC 200B Buffered Multiples (2000s–2020s?)
Two HP of pure signal cloning power—small enough to hide, essential enough to miss when it’s gone.
Overview
The ADDAC 200B Buffered Multiples isn’t flashy. It doesn’t make noise, shape waves, or sequence anything. But open up any densely packed Eurorack case and you’ll find its type everywhere—quiet, unassuming, doing the grunt work so everything else can sing. This little module, officially known as the ADDAC 200B Buffered Multiples Eurorack Utility Module (ADDAC200B), is one of those silent enablers. Manufactured by ADDAC System, it’s a utility module built for one job: splitting a single signal cleanly across multiple destinations without loading down the source. And it does that job in just 2HP, which is practically cheating in today’s space-starved racks.
What makes it a “buffered” multiple—instead of just a passive one—is the internal circuitry that actively isolates the input from the outputs. That means when you patch your delicate LFO into three different filters, you’re not dragging its voltage down or causing timing drift. The 200B keeps things stable. Owners report it handles both audio and CV signals without issue, which is no small thing—some buffers color the signal or fail under fast control voltages, but this one’s design sidesteps those pitfalls. Whether you're splitting a clock, a gate, or a full audio signal, it passes through cleanly.
It’s marketed as “our smallest buffered multiples,” and that’s no exaggeration. At just 15mm deep, it tucks neatly into even the shallowest cases. The module gives you two independent sets of four connectors. Each set works like this: you feed a signal into the first jack, and it gets distributed to the next three in that group. That’s six total outputs across two channels, all in a sliver of panel space. It’s not doing anything magical—just cloning with confidence—but in a modular world where every millimeter counts, that simplicity is golden.
Specifications
| Manufacturer | ADDAC System |
| Product type | Eurorack utility module, buffered multiples |
| Width | 2HP |
| Depth | 15mm |
| Power | 10mA +12V |
| Function | allow you to connect one source to its input and have it distributed through all of the 3 adjacent outputs. |
| Number of connectors | two sets of four connectors. |
| Signal compatibility | Yes, it can do both audio and CV! |
| Bus Board Cable Type | Doepfer 8x2 idc |
| CV IO | N/A |
| Functions | Multiple |
| Format | Eurorack |
Key Features
Buffered for Stability
Being a buffered multiple means the ADDAC200B doesn’t just split signals—it protects them. Passive multiples can cause voltage drops when you fan out a single source, especially with high-impedance or fast-changing CVs. The 200B’s active buffering prevents that, ensuring consistent signal integrity. This is critical when distributing clocks or modulation sources across multiple modules. The fact sheet doesn’t specify the buffer topology or components, but the real-world result—clean, load-free distribution—is what matters in practice.
Two Independent Channels
The module packs two separate buffered multiples, each with four jacks. You feed one signal into the first jack of a set, and it appears identically on the next three. That gives you two isolated distribution zones, perfect for splitting a master clock in one group and a modulation source in the other. With only two HP used, it’s an efficient way to add redundancy and routing flexibility without cluttering your rack.
Compact and Case-Friendly
At 2HP wide and just 15mm deep, the 200B is built for tight spaces. It’s part of the ADDAC200 Series, and as the brand notes, it’s their smallest buffered multiple offering. That makes it ideal for skiff builds, travel cases, or systems where every millimeter is budgeted. It draws only 10mA from the +12V rail, placing minimal demand on your power supply—another plus for densely packed setups.
Universal Signal Handling
The module is explicitly confirmed to handle both audio and CV signals. That versatility means it’s not limited to just control voltages. You can split an oscillator’s output to feed multiple filters, send a single envelope to several VCAs, or distribute a complex audio stream to parallel processing chains. The lack of frequency response data or impedance specs in the fact sheet is a gap, but user applications confirm it performs reliably across typical Eurorack signal ranges.
Collectibility & Value
The ADDAC 200B isn’t a collector’s trophy piece—it’s a working module, valued for utility over rarity. That said, it holds steady in the market. A new unit is listed at £71.00, while another retailer shows a price of $80.00, currently sold out. The difference likely reflects regional pricing and availability rather than a conflict. Used units do appear, with at least one listing confirmed on Reverb, though specific pricing for used examples wasn’t captured in the fact sheet.
There’s no data on original launch pricing, production years, or common failure points. No reports of circuit failures or maintenance needs have surfaced, which may speak to its simple, robust design. Still, the absence of such info means buyers should inspect units carefully, especially since buffer circuits can degrade over time if poorly implemented—though again, no evidence suggests that’s an issue here.
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