Skip to content

IGS RB 500 ME

Stereo Pultec Style EQ

RB 500 ME (Mastering Edition) is a stereo passive equalizer in a double 500-series format, delivering classic Pultec-style tone with mastering-grade precision. Built around fully passive filtering inspired by 1960s analog equalizers, it features transformer-balanced I/O using IGS Custom transformers and a Class-A driver stage. Separate frequency selectors for low-cut and boost sections provide exceptional flexibility, while premium potentiometers and ELMA switches ensure accuracy and repeatability. RB 500 ME allows engineers to sculpt tone musically, adding depth, weight, and character without sacrificing clarity or stereo integrity.

WhatsApp us

A Stereo Passive EQ for Mastering Workflows
RB 500 ME is the first true stereo Pultec-style equalizer designed specifically for the 500-series format. Housed in a double-slot module, it offers the depth and musicality of classic passive EQs with the convenience of modern modular systems.

Classic Passive Filtering with Modern Precision
The entire filtering section is fully passive, closely mirroring revered analog designs from the 1960s. Independent frequency selectors for low-cut and low-boost sections allow nuanced shaping that feels natural and intuitive.

Transformer-Balanced Class-A Signal Path
IGS Custom input and output transformers, paired with a Class-A driver circuit, provide headroom, stability, and rich harmonic structure. This architecture preserves low-end authority while maintaining openness and detail in the highs.

A Tool for Sonic Personality
RB 500 ME excels at adding character without excess. Its multiple tonal interactions invite experimentation, giving engineers a powerful way to imprint personality onto mixes, stems, and masters.

Ready to Upgrade Your Sound?

Get in touch with our team for expert advice, pricing, and availability.

WhatsApp us
Drawmer logoIGS Audio logoTelegrapher logoExpressive E logoGarbage Ideas logoLooptrotter logoZ&H Designs logoHLabs logoMesanovic logo
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