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Rubber Bands

Stereo ‘Pultec Style’ Tube Equalizer

Rubber Bands is a stereo, Pultec-style passive equalizer designed for engineers who crave musical tone shaping with true analog depth. Built around a classic passive filter topology and paired with a bespoke two-stage tube amplifier known as the Organic Amp, it delivers weight, dimension, and unmistakable character. Precisely matched components ensure perfectly synchronized stereo operation, while transformer-balanced inputs and outputs preserve signal integrity. With its ability to simultaneously boost and cut similar frequencies, Rubber Bands excels at sculpting lows and highs in a way that feels natural, powerful, and effortlessly musical.

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A Stereo Passive EQ with Classic Roots
Rubber Bands draws inspiration from the legendary EQP-1 Pultec design, bringing the unmistakable behavior of passive equalization into a modern, stereo format. Carefully selected components with 1% tolerance ensure precise channel matching and consistent stereo imaging.

Organic Amp Tube Amplification
Following the passive filter stage is the Organic Amp, a specially designed two-stage tube amplifier that restores gain while adding density, depth, and harmonic richness. This tube stage is central to the Rubber Bands sound, enhancing dimensionality without masking detail.

Musical Filter Interactions
The equalizer is divided into four sections: two dedicated to bass and two to treble. Frequencies are selected via stepped switches, while boost and cut controls remain continuous. The interaction between filters allows simultaneous boosting and cutting of similar frequencies, producing the signature Pultec-style curves engineers rely on.

Designed for Real-World Mixing
A relay-based bypass enables instant A/B comparison, making Rubber Bands intuitive during critical sessions. It shines on vocals, guitars, strings, and full mixes, adding authoritative low end and smooth, airy high frequencies.

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Testimonials

Our Raving Fans

★★★★★

I picked up two of their 500 Series modules and I’m blown away. The noise floor is low, the gain is clean, and the knobs feel like they belong on a much pricier unit. They’ve definitely become permanent residents in my…

Read moreI picked up two of their 500 Series modules and I’m blown away. The noise floor is low, the gain is clean, and the knobs feel like they belong on a much pricier unit. They’ve definitely become permanent residents in my signal chain.

Nur Hakim
★★★★★

We needed hardware that looks good in client-facing environments and performs consistently. Their products tick both boxes. The minimalist design is beautiful on camera, and the durability has been excellent.

Cheryl Wong
★★★★★

The dynamics processor is ridiculously good. Smooth compression, no weird pumping, and the controls respond exactly as expected. It’s become my go-to for vocals and acoustic guitars.

Darren Tan
★★★★★

We installed their signal distribution system across two rooms, and it’s been flawless. Zero hum, zero dropouts. The build quality is impressive — you can tell it’s made to last. Easily one of our best purchases this year.

Faridah Sulaiman
★★★★★

Our studio upgraded to their 19″ rackmount units and the improvement was immediate. The layout is intuitive, connections are rock solid, and the unit hasn’t glitched once. Setup took minutes and everything just works.

Asha Ravi
★★★★★

I’ve been mixing on these studio monitors for the past three months, and the clarity is honestly next level. The stereo imaging is tight, the low end is controlled, and the build feels solid. It’s the first time I’ve used…

Read moreI’ve been mixing on these studio monitors for the past three months, and the clarity is honestly next level. The stereo imaging is tight, the low end is controlled, and the build feels solid. It’s the first time I’ve used monitors in this price range that actually translate well outside the studio.

Jason Lim