2hp Trim (2008–Present)

Name: 2hp Trim
Brand: 2hp

Two channels of pure, passive signal taming in the smallest footprint imaginable—no power, no fuss, just precision.

Overview

You don’t hear the 2hp Trim. You feel its absence when it’s not there. In a Eurorack system bristling with wild oscillators, unpredictable noise sources, and modulation paths that spiral into chaos, the Trim is the quiet diplomat that keeps everything in check. It doesn’t color, it doesn’t amplify, it doesn’t even draw power—yet it’s often one of the first modules a builder reaches for when patching gets serious. At just 2hp wide and 15mm deep, it slips into gaps where other modules can’t, making it the ultimate skiff-friendly utility. Two independent attenuators, each capable of dialing a signal from full strength down to complete silence, give you surgical control over audio or CV—whether you’re taming a piercing sine wave, scaling a random voltage for subtle modulation, or balancing levels before hitting a mixer or output stage.

And that’s the thing: the Trim doesn’t do much, but what it does, it does perfectly. It’s passive, meaning there’s no active circuitry, no op-amps, no noise floor to worry about—just a pair of high-quality potentiometers wired as voltage dividers. What goes in comes out, just quieter. This simplicity is its strength. There’s no clipping, no distortion (unless your source is already hitting it), and no added artifacts. It’s transparent in the way only a well-executed passive design can be. Owners report using them in pairs, threes, even fives—stacked at the end of modulation chains, flanking complex processors like Clouds or Warps, or tucked beside VCOs that lack onboard attenuation. It’s not glamorous, but in a modular context, predictability and reliability are their own kind of magic.

Specifications

Manufacturer	2hp
Production Years	2008–Present
Original Price	$45
Width	2hp
Height	3U
Depth	15 mm
Power	Passive (No power required)
Function	Attenuator
Channels	2
Signal Type	Audio, CV
Attenuation Range	Full-scale to infinity (complete signal reduction)
Panel Options	Silver, Black
Mounting	Standard Eurorack
Weight	Approx. 30g
Input Impedance	High (passive divider)
Output Impedance	Dependent on potentiometer position
Current Draw	0 mA
Compatibility	All Eurorack systems

Key Features

No Power, No Problem

The Trim’s greatest trick is needing nothing from your power supply. In a format where every milliamp counts and bus boards groan under the weight of power-hungry digital modules, a module that asks for zero current is borderline revolutionary. It means you can install it in the tightest, most power-starved skiff without a second thought. No ribbon cables, no reverse power concerns, no ground loops—just plug in a patch cable and turn the knob. This makes it ideal for travel systems, DIY cases with limited power, or educational setups where simplicity and reliability are paramount.

Skiff-Sized Utility Done Right

At 2hp, the Trim occupies the smallest standard module width in Eurorack, yet it still manages to house two fully functional attenuators with usable knobs. That’s no small feat—many modules at this size end up with fiddly controls or awkward spacing. 2hp nailed the ergonomics: the knobs are spaced just far enough apart to avoid accidental bumps, and the panel layout is clean and intuitive. The module is available in both silver and black anodized aluminum, matching nearly any build aesthetic. Its 15mm depth ensures it won’t interfere with deeper modules behind it, making it a favorite for stacking in dense systems.

Universal Signal Taming

While marketed as an attenuator, the Trim’s usefulness extends far beyond volume control. It’s equally at home scaling CV for subtle parameter shifts—say, reducing an LFO’s output to gently modulate filter cutoff without sweeping the entire range. It can act as a manual offset when paired with a constant voltage source, or serve as a crude but effective way to balance multiple signals before summing. Some users even deploy it as a “soft mute” in feedback loops or to prevent runaway modulation in complex patches. Because it’s passive, it won’t load down sensitive outputs, though care should be taken when driving low-impedance inputs, as the output impedance varies with knob position.

Historical Context

When 2hp launched the Trim in 2008, Eurorack was still a niche within a niche—far from the explosion it would become in the 2010s. Most utility modules were bulky, often 4hp or wider, and passive attenuators were frequently overlooked in favor of flashier, feature-rich modules. 2hp, founded by designer Tony Rolando (also behind the iconic Korg Monotron), had a different vision: minimalist, elegant solutions to everyday patching problems. The Trim, along with the Mult and Mix, formed the backbone of this philosophy—small, focused modules that did one thing well. At a time when builders were cramming more functions into each hp, 2hp went the opposite direction, proving that sometimes less isn’t just more, it’s essential. Competitors like Intellijel and Doepfer offered attenuators, but none matched the space efficiency of the Trim. It became a quiet standard, the kind of module that shows up in rack photos without fanfare but is quietly indispensable.

Collectibility & Value

The 2hp Trim has never been rare—production has remained steady since 2008—but its value lies in ubiquity and utility, not scarcity. New units still sell for around $45, unchanged from the original price, a rarity in the modular world where inflation and demand often drive prices up. Used units fetch $30–$40 depending on condition, with little premium for vintage status—after all, there’s no meaningful difference between a 2009 and a 2023 unit. Failures are uncommon but not unheard of: the main risk is potentiometer wear, especially if used frequently or with dirty patch cables. Crackle or dropouts in the signal path usually indicate a dirty or failing pot, which can often be cleaned with contact cleaner. Full replacement is straightforward but requires desoldering. There’s no firmware, no calibration, no hidden weaknesses—just mechanical wear over time. When buying used, check both channels thoroughly and inspect the jacks for looseness. Given its passive nature, there’s little else that can go wrong. For the price, it’s arguably one of the best values in Eurorack—no hype, no markup, just a tool that works.