500 Series

The 500 Series format introduced modular studio processing within compact rack systems, allowing engineers to combine preamps, equalisers, compressors and other signal processors in interchangeable slots. Originally developed as part of console channel strip designs, the format evolved into a standalone modular ecosystem widely adopted in modern studio production. This archive includes 500 Series modules and compatible rack systems used in professional recording environments. From vintage-inspired recreations to contemporary circuit designs, the 500 Series format provides flexible hardware processing within modular studio workflows.

Made In U.S.A.

Released in 2017 /

Chandler Limited TG12345 MkIV Equalizer

The Chandler Limited TG12345 MKIV equalizer is a handmade, fully discrete, mono, single space module, designed for the 500 Series format.

Made In U.S.A.

Released in 2017 /

LaChapell Audio Model 583e Tube Microphone Preamplifier

The LaChapell Audio Model 583e Tube Microphone Preamplifier is the world’s first 500 series tube microphone preamplifier and features built in 3 band equalisation too!

Made In U.S.A.

Released in 2017 /

LaChapell Audio Model 503 Equaliser

The LaChapell Audio Model 503 Equaliser provides Mastering quality tone shaping from LaChapell Audio.

Made In U.S.A.

Released in 2017 /

LaChapell Audio Model 583S Mk2 Microphone Preamplifier

LaChapell Audio Model 583S Mk2 Microphone Preamplifier delivers is the world’s first 500 format tube mic preamplifier.

Made In U.S.A.

Released in 2017 /

LaChapell Audio Model 500TDI Tube Direct Box

The LaChapell Audio Model 500TDI Tube Direct Box provides LaChapell Audio warmth and clarity for bass and other instrument pickups.

Made In Germany

Released in 2017 /

SPL HPm Headphone Monitoring Amplifier

The SPL HPm Headphone Monitoring Amplifier is a 500 Series double-slot module headphone monitoring amplifier with Phonitor Matrix for two headphones.

Made In U.S.A.

Released in 2018 /

API 529 Stereo Compressor

The new API 529 Stereo Compressor combines the unmistakable sound of API’s compression technology with the convenience and popularity of the API 500 Series format.

Made In Poland

Released in 2018 /

WesAudio Hyperion Parametric Equaliser

The WesAudio Hyperion Parametric Equaliser is a fully analogue parametric equaliser with digital recall, in a compact 500 series format.

Made In U.S.A.

Released in 2018 /

Maag Audio EQ4-500 6-Band EQ

The Maag Audio EQ4-500 is a single channel 6-band equaliser module that fits into a single slot of the popular 500vVPR series racks. Like the EQ2, many features and the design philosophies of the Maag Audio EQ4M standalone equaliser are incorporated into the Maag Audio EQ4-500 series equaliser.

Made In China

Released in 2018 /

Cranborne Audio Camden 500 Microphone Preamplifier

Cranborne Audio Camden 500 is the most astoundingly clean, linear, transparent preamp you’ve ever heard. But it also has “Mojo” – 2 discrete custom analogue saturation circuits that can be applied, exaggerated, and perhaps best of all – bypassed.

Made In U.S.A.

Released in 2018 /

Maag Audio PreQ4-500 Microphone Preamplifier

The Maag Audio PreQ4-500 is an “all in one” channel strip that updates the PreQ3 module and fits into the standard 500VPR rack. Up to 65 dB of extremely clean gain is available to handle low output ribbon mics and/or very quiet sound recordings for foley/film applications that require high gain with a low noise floor.

Made In Poland

Released in 2018 /

Looptrotter SAT 500 Saturator

The LOOPTROTTER SAT 500 is a 500 series saturation module that enhances audio with low-order harmonics, offering controls for DRIVE, HI SMOOTH, LO SAFE, and DRY/WET blending for subtle colour or full harmonic saturation.