500-Series

Purple Audio Cans - 500-Series Headphone Amp The Purple Audio Cans is a 500-Series headphone amp and control room preamplifier. Front panel control...

Purple Audio Biz - 500-Series Mic Pre The Purple Audio Biz is a 500-Series Preamp module featuring a 'dual' mode which, when engaged enables up to ...

Purple Audio Action - 500-Series 1176 Style Compressor The Purple Audio Action is a 500-series compressor reminiscent of an 1176 limiting amplifier...

Meris Ottobit The Meris Ottobit is a 500-series bitcrusher module made in California with a premium analogue signal path and 24-bit AD/DA with 32 B...

Meris Mercury7 Reverb The Meris Mercury7 Reverb is the world's first 500 Series Algorithmic DSP reverb unit. The Mercury7 uses a premium analogue s...

Maag EQ2 - 500-Series 2-Band EQ The Maag EQ2 is a mono channel 2 band equaliser with a low mid bell boost from Sub to 1.4kHz and an AIR BAND of 2.5...

Mercury D Series G810 Rack System two The Mercury G810 Rack System Two with DB25 terminations like its twin (System One) is a professional 500 seri...

Mercury D Series G810 - XLR The Mercury G810 Rack System One with XLR outputs is a professional 500 series with XLR I/O. The G810 system solves the...

Looptrotter SaturAMP - 500-Series Mic-Pre & Distortion Circuit The Looptrotter SaturAMP is a 500 series microphone pre-amp and instrument pre-a...

Great River PWM-01 - Compressor - 500-Series Module The Great River PWM-501 is a versatile and compact 500-Series module compressor featuring feed ...

Great River MP-500NV - Single Channel Mic Pre - 500-Series Module The Great River MP-500NV is a single channel 500-Series microphone pre-amplifier ...

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...

Dramastic Audio Obsidian 500 Compressor - 500-Series Stereo Compressor The Dramastic Audio Obsidian 500 Compressor is designed for API’s modular Lu...

Dramastic Audio Obsidian 500 Dual Mono Expansion The Dramastic Audio Obsidian 500 Dual Mono Expansion is a monitoring tool that allows you to visua...

DBX 530 - Parametric EQ 500-Series Module The DBX 530 gives you full parametric control over three bands, which overlap with each other for creativ...

DAV BG503 - 500-Series EQ The DAV Electronics BG503 is a 3 band 500-series equaliser that features extremely low noise and distortion and electroni...

The Chandler Little Devil PreAmp is a 500-Series microphone pre amplifier. The device features Gain, Feedback, Amplifier Bias, Impedance, Low Cut, ...

The Chandler Little Devil Compressor is a 500-Series module featuring a Fet Compressor using concepts from both the Chandler Germanium Comp and the...

The Chandler Little Devil Equalizer features an English-style console EQ similar to 1081 and 33115 vintage units. Also a Treble and bass shelf, Thr...

The Germanium 500 is a 500-series compatible Germanium preamp. No circuit or transformer changes were necessary to adapt Chandler Limited designer ...

The tonic offers 3 bands of equalisation with a versatile sweep midrange section and fixed two frequency high and low bands. The tonic also has a h...

The essence is a True Class A Optical Compressor designed to fit the API 500 VPR Series rack frames offering a great feature set in a compact packa...

The essence is a True Class A Optical Compressor designed to fit the API 500 VPR Series rack frames offering a great feature set in a compact packa...

The elixir preamplifier module is an excellent compliment to the "fatter" sound of many modules now available in the API 500VPR Series format and h...

Burl B1D - 500-Series Mic Pre with Steel Output Transformer The Burl Audio B1D is an all discrete transistor, class-A, direct coupled, capacitor fr...

Burl B1 - 500-Series Mic Pre with Nickel Output Transformer Capable of getting hairy or delivering light clarity as required, thanks to independent...

Avedis MD7 The Avedis MD7 is a professional preamp that addresses the features needed in op-amp based preamps and, more importantly, with a very mu...

Avedis MA5 - 500-Series Class A Mic Pre The Avedis MA5 is a 500 series module size Class A microphone pre-amplifier designed to mimic the character...

The lineage of the 5500 circuit can be traced back to the original 550 equalizer designed by Saul Walker, the founder of Automated Processes Inc. T...

API 500V - 10 Slot Rack + L200PS PSU The API 500V is a rugged 10-slot, 3U rackmountable chassis for your modular 500 series gear. Powered by a tri-...

A-Designs P-1 - 500-Series Mic Pre Module The A-Design P-1 has the highest fidelity of all the A-Designs Audio 500 preamps, capturing the mojo of i...

A-Designs EM PEQ - Based on Pultec EQP-1A - 500-Series Module The A-Designs EM PEQ is the first and only Pultec-style equaliser in a 500-Series for...