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500 Series

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