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| 500 Series Modules | ||||
| Manufacturer | Model | Description | List Price | Sale Price |
| A Designs | EM-PEQ | Modular Single Channel 500 series EQ Card with a sonic nod to the classic EQP-1A | $1,225 | $1,095 |
| A Designs | P-1 | Modular Single Channel 500 Series Compatible Mic Pre/DI - based on the "Pacifica" | $895 | $795 |
| A Designs | EM-SILVER | Modular Single Channel 500 Series Compatible Mic Pre/DI - with a custom wound steel output transformer | $750 | $675 |
| A Designs | EM-BLUE | Modular Single Channel 500 Series Compatible Mic Pre/DI - with a custom wound nickel output transformer |
$750 | $675 |
| A Designs | EM-RED | Modular Single Channel 500 Series Compatible Mic Pre/DI - with a custom wound 50/50 output transformer | $750 | $675 |
| A Designs | EM-GOLD | Modular Single Channel 500 Series Compatible Mic Pre/DI - with a custom wound output transformer of the EM-Silver and the custom wound input transformer of the EM-Red | $750 | $675 |
| AEA | RPQ500 | 500 Series Ribbon Microphone Preamp Module with Curve Shaping New! |
$649 | $584 |
| API Audio | 512C | Discrete Mic Preamp 500 Series Module | $895 |
$760 |
| API Audio | 527 | Discrete 500 Series Compressor/Limiter with Thrust Circuit based on API's 225L discrete channel compressor | $995 |
$845 |
| API Audio | 525 | API 500 Compressor | $1,195 |
$1,015 |
| API Audio | 550A (SW) | API 550A Saul Walker Edition - identical in circuit design and parts complement to the last re-issue version, with the addition of a special custom face-plate. The unit will also feature the signature of its designer, Mr. Saul Walker, founder of API. The Saul Walker 550A will be built in small quantities, with limited supply. | $2,195 |
$1,865 |
| API Audio | 550A | 500 Series Discrete 3 Band Eq Module | $1,195 |
$1,015 |
| API Audio | 550b | 500 Series Discrete 4 Band Eq Module | $1,195 |
$1,015 |
| API Audio | 560 | Re-issue of the 1969 API 560 Discrete 10 Band Graphic EQ Module |
$895 |
$760 |
| Buzz Audio | Elixir | True Class A Preamplifier Module |
$940 | $755 |
| Buzz Audio | Essence | True Class A Optical Compressor Module |
$1,350 | $1,080 |
| Buzz Audio | Potion | True Class A FET Compressor Module |
$1,350 | $1,080 |
| Buzz Audio | Tonic | True Class A 3 Band Equaliser Module |
$1,140 | $915 |
| Chandler | Little Devil Compressor Upgraded Version! |
500 series modular all discrete circuit, transformer balanced fet compressor (requires API or other 500 Series Rack) |
$1,180 | $1,062 |
| Chandler | Little Devil Equalizer Upgraded Version! |
500 series modular all discrete circuit, transformer balanced EQ (requires API or other 500 Series Rack) |
$1,375 | $1,237.50 |
| Chandler | Little Devil Preamp New! |
500 series preamp module that is big - punchy - and musical. (requires API or other 500 Series Rack) |
$999 | $899 |
| Chandler | Germ 500 MK II New! |
500 series modular version of the Germanium rack preamp (requires API or other 500 Series Rack) |
$1,060 | $955 |
| Daking | MicPre 500 |
Single channel Daking preamp compatible with
API 500 Racks. ¼” DI input, 48v, polarity, pad,variable HPF |
$675 | $599 |
| Empirical Labs | EL/Rx-V DocDerr | Multi-purpose tone enhancement API 500 series module with instrument pre, four band EQ, compressor, and tape saturation circuits. Vertical faceplate. | $899 | $799 |
| Empirical Labs | EL/Rx-H DocDerr | Multi-purpose tone enhancement API 500 series module with instrument pre, four band EQ, compressor, and tape saturation circuits. Horizontal faceplate. | $899 | $799 |
| Empirical Labs | ELDS-V DerrEsser | Desser / Dynamic Section from the Lil FrEQ as a module for API 500 Series with verical faceplate. | $749 | $499 |
| Empirical Labs | ELDS-H DerrEsser | Desser / Dynamic Section from the Lil FrEQ as a module for API 500 Series with horizontal faceplate. | $749 | $499 |
| Empirical Labs | DS Duo | Features two ELDS-H DerEssers's installed into a EL500 rack, effetively creating a stereo de-esser/dynamics processor. | $1,499 | $1,199 |
| Empirical Labs | RX Duo | Features 2 EL/Rx-H DocDerr's installed into a EL500 1U horizontal rack. | $2,199 | $1,999 |
| Empirical Labs | DS Plus | One ELDS-H DerEsser in EL500 Rack | $999 | $899 |
| Empirical Labs | RX Plus | Features 1 EL/Rx-H DocDerr installed into a EL500 1U horizontal rack. | $1,399 | $1,299 |
| JDK Audio by API | V14 | Single Channel 500 Series 4 band EQ modeled after the classic APSI model 562 EQ | $595 | $590.75 |
| Millennia Media | HV-35 | 500 Series Preamp Module to be used with an API compatible rack - based on Millennia’s industry-acclaimed HV-3 series of mic preamps. | $799 | $718.99 |
| Purple Audio | Biz Mk | Discrete microphone preamp module designed to work in standard "500" racks. New features include Mic / Line switch for rack input and DI Load switch for front panel input | $725 | $725 |
| Purple Audio | Action | A FET compressor reminiscent of the MC77. Designed to work in standard "500" racks. | $725 | $725 |
| Purple Audio | TAV | 10 Band Graphic Inductor EQ. Designed to work in standard "500" racks. | $725 | $725 |
| Purple Audio | LILPEQr | 2 Band Program EQ. Designed to work in standard "500" racks. | $625 | $625 |
| Purple Audio | MOIYN | 8x2 Mixer. Designed to work in in slot 9 of the Purple Audio Sweet Ten rack. | $725 | $725 |
| Purple Audio | Cans | Discrete Headphone Amp. Designed to work in standard "500" racks. | $500 | $500 |
| Purple Audio | Odd | A four-band inductor-based EQ. Designed to work in standard "500" racks. | $725 | $725 |
| Purple Audio | Pants | A four opamp, diferential mic preamp. Designed to work in standard "500" racks. | $725 | $725 |
| Tonelux | MP5 | Mic Pre, Discrete, w /TILT | $785 | $785 |
| Tonelux | EQ5P | 4 band proportional energy parametric EQ | $949 | $949 |
| Tonelux | TXC 500 Series | Compressor Module | $949 | $949 |
| True Systems | PT2-500D | Single-Channel Precision Microphone/Instrument Preamplifier 500 Series Modules with Direct Input & Thru | $749 | $649 |
| Vintech | VA573 NEW! |
The VA573 is a class A, all discrete, transformer balanced microphone preamplifier. It is based on the classic Neve 1073 module. The 573 also features an all new discrete high impedance D.I. that goes through the input transformer. The unit is also capable of accepting line level sources via a switch on the front panel. (requires 500 Series rack/psu) |
$825 | $695 |
| 500 Series Racks | ||||
| Manufacturer | Model | Description | List Price | Sale Price |
| A Designs | 500HR | Dual slot 500 series rack - 1u
with internal power supply, 48V SOLD ONLY WITH AT LEAST ONE P-1, EM OR EMPEQ |
$335 | $299 |
| API Audio | HC-6B | NEW! and IMPROVED! 6 slot Lunchbox with 48V and internal power supply |
$499 |
$424 |
| API Audio | 500-6B | 6 slot Lunchbox with 48V and internal power supply | $499 |
$424 |
| API Audio | 500VPR | 10 slot Rack, 3u (includes L200PS power supply) | $949 |
$806 |
| Empirical Labs | EL500 | 2-Slot 500 Series Rack | $500 | $399 |
| Purple Audio | Sweet Ten Rack | 10 Slot 500 Module Rack with internal power supply |
$800 | $800 |
| Tonelux | V4 | 500 Series 4 Space Rack | $499.99 | $499.99 |