Outboard

Crane Song Insigna 500 Series EQ The Crane Song Insigna is a tube equalizer in a 500 Series package, using a dual triode circuit with a 12AX7 tube ...

API 565 - Discrete Filter Set - 500-Series Module The API 565 Filter Bank is a 500-series module featuring sweepable high-pass and low-pass filters...

API 529 The API 529 is a 500-Series (2 slot) stereo compressor module that combines the convenience and popularity of the 500 Series format API's c...

API 525 Originally released in the 70's, the API 525 is a "feedback" type compressor, such as the 1176 and 660, etc. An input (threshold) control a...

API 505 DI - Discrete DI - 500-Series Module The API 505 DI is a 500-series direct input module. The 505 DI is designed specifically for guitar, ba...

API 529 Stereo Compressor 500-Series Module - B-Stock ---This unit has been unboxed and on display in our showroom. As new with full warranty. The ...

Hlabs EQ169 - 500-format 3-band EQ based on the Studer 169 The Hlabs EQ169 is a simple but very musical 3-band equalizer, featuring a semi-parametr...

Elysia NVELOPE-500 - Stereo Impulse Shaper 500-Series Module - B-Stock The Elysia NVELOPE-500 is a powerful audio processor capable of making subtl...

Heritage Audio OST8 ADAT - 8 Slot 500 Series OST Enclosue with ADAT Out The Heritage Audio OST8 ADAT is an 8 slot 500 series chassis that features ...

H2 Audio Helios 002 - 2 channel 11 series rack w/PSU The H2 Audio 002 is a 2 channel rack for 11 series modules such as the Helios 2128, 0011 and 5...

Rupert Neve Designs 551 500 Series Inductor EQ - B-Stock (Ex Demo) The Rupert Neve Designs 551 is a 500 series 3 band EQ the features custom-wound ...

Alice 501T - 500-Series Mic Pre with Transformers The Alice 501T is a high-performance transformer balanced microphone preamplifier. The 501 T is d...

Wunder Audio Allotrope EQ The Wunder Audio Allotrope EQ is a classic inductor-based Baxandall equalizer with has the same EQ circuit as the Wunder ...

TK Audio TK-LIZER 500 The TK AudioTK-lizer 500 is a 500 series TK Lizer that features all the power of the TK Audio’s flagship TK-lizer does, inclu...

Serpent Audio Send 'n Blend- 500-Series Wet/Dry Mix The Serpent Audio Send N' Blend is a 500 series module that enables the ability to add a mix/bl...

Radial Engineering X-AMP-500 The Radial X-AMP-LB is a 500 series module that lets you take a pre-recorded guitar track and send it back to amplifie...

The Radial Powerhouse is a 10 module 500 series power-rack designed to accommodate both older and newer 500 series modules in a standard 19" rack ...

Phoenix Audio Gyrator EQ 500 The Phoenix Audio Gyrator-EQ-500 is one of the most unique and musical EQs, allowing an incredible variety of sounds u...

IGS Rubber Bands 500 ME The IGS Rubber Bands 500 ME is a stereo equalizer packed into a duo 500-series module. This beast is equipped with transfor...

Great River 32EQ - Harrison 32 Series Classic EQ - 500-Series Module The Great River 32EQ is a 500-Series module version of the EQ and filters from...

Grace Design M501 500-Series Mic Pre Module The Grace Design m501 is an API 500-Series single channel microphone and DI preamplifier features a bal...

Fredenstein Bento 10 S - 10 slot 500 series rack The Fredenstein Bento 10S is a high performance module carrier for Fredenstein Series 500 modules ...

Empirical Labs DocDerr The Empirical Labs DocDerr is a channel strip consisting of a pre-amplifier, 4 band EQ and compressor that is all packed int...

Elysia Skulpter 500 The Elysia Skulpter 500 is a discrete class-A mono preamp designed for a 500 series lunchbox. Its audiophile preamp is based on...

Chandler TG Opto 500 Compressor The Chandler Limited TG Opto compressor is a 500 series, fully discrete, mono, dual space module compressor that in...

Avedis E27 - Discete 3-Band Transformer Balanced EQ - 500-Series Module The Avedis E27 is a high quality modular equalizer in the popular and conve...

The API 550 EQ played a major part in the history of music recording in the USA during the 60's and 70's. Originally conceived for use in API's con...

Roger Mayer RM 68MP Mic Preamplifier - 500 Series Module The Roger Mayer 68MP 500-Series Module is a mic preamp that delivers a clean and bright so...

API 525A Mono Compressor - 500-Series Module Since the early 1970s and the subsequent re-issue over 20 years ago, the 525 Discrete Compressor has b...

Malcolm Toft PUNISHR 500-Series Harmonic Saturation Processor The Malcolm Toft PUNISHR is an analogue harmonic saturation module for the 500 Series...

Interphase Audio Iridium 500 - 4-Band Inductive Equaliser (Dark) The name Iridium is based on “Iris”, the Greek goddess of the rainbow. And that is...

Interphase Audio Iridium 500 - 4-Band Inductive Equaliser The name Iridium is based on “Iris”, the Greek goddess of the rainbow. And that is exactl...

Interphase Audio Helium 500 - 4-Band Hybrid Equaliser (Dark) The Interphase Helium is a full Class-A, discrete design, and all components have been...

Interphase Audio Helium 500 - 4-Band Hybrid Equaliser The Interphase Helium is a full Class-A, discrete design, and all components have been carefu...

Interphase Audio Carbon 500 - 4-Band Capacitive Equaliser (Dark) The Interphase Carbon is your basic building block, your “go to” EQ with it’s four...

Interphase Audio Carbon 500 - 4-Band Capacitive Equaliser The Interphase Carbon is your basic building block, your “go to” EQ with it’s four large ...

Kahayan Epsilon 32-500 Summing Mixer w/SOLID 4000 500 series modules Kahayan Audio Epsilon 32-500 with Solid 4000 Modules is a 32-channel analog su...

Maag PREQ2-500 Microphone Preamplifier The Maag PREQ2-500 Microphone Preamplifier is the powerful little 500 Series brother to the PREQ2, boasting ...

Cranborne Audio 500ADAT - 8-slot 500 series Rack with ADAT Expander & Summing Mixer - B-Stock The Cranborne Audio 500 ADAT is an 8-in/8-out ADA...

Alice 538T - 500-Series Stereo OPTO Compressor with Transformers The Alice 538T is a stereo 500 series Optical compressor. This unique design is a ...

Hlabs PRE169 - 500-Format Mic Pre with Carnhill output transformer The PRE169 is a very versatile microphone preamp. With over 67dB of gain, it sou...

API Select SV14 - Parametric EQ - 500 Series The API Select SV14 is a four band parametric EQ, re-engineered  from the highly sought-after APSI 562...

API Select SV12 - Compressor - 500 Series The API Select SV12 is a mono channel compressor in 500 series format, featuring the original compressor ...

AEA TRP500 Preamp Module - Lunchbox 500 Series The AEA TRP500 is a 500 series preamp that delivers neutral, but rich and musical tonality with up t...

H2 Audio Helios 0011 500-Series Microphone Preamp and EQ The H2 Audio Audio 0011 is a 500 series preamp and EQ recreation of the Helios console cha...