| A-Designs EMPEQ | $1,399.00 | |
| API 550A | $1,848.00 | |
| API 550A - 50th Anniversary Edition | $2,992.00 | |
| API 550B | $2,024.00 | |
| API 560 | $1,496.00 | |
| API 565 Filter Bank | $968.00 | |
| Avedis Audio E12G 12 Band Graphic Equalizer | $1,333.00 | |
| Avedis Audio E27 Modular Equalizer | $2,124.00 | |
| BAE B15 | $1,711.00 | |
| BAE G10 500 Series Graphic EQ | $1,435.00 | |
| Buzz Audio Tonic | $1,249.00 | |
| Chameleon Labs 560EQ 500-series Three Band Inductor-based Equalizer | $658.00 | |
| Chandler Little Devil EQ | | |
| Cranesong Insigna | $2,436.00 | |
| Electrodyne 511 EQ | $1,733.00 | |
| Elysia Nvelope 500 | $1,666.00 | |
| elysia nvelope qube | | |
| Elysia xfilter 500 | $1,666.00 | |
| elysia xfilter qube | $1,987.00 | |
| Empirical Labs EL/Rx-H DocDerr | $1,387.00 | |
| Golden Age EQ573 | $398.00 | |
| Great River 32EQ | $1,299.00 | |
| Heritage Audio 73EQ JR 500 Series | $1,805.00 | |
| IGS Audio iQ505 5 Band Fully Parametric Equalizer | | |
| IGS Rubber Bands 500 | $1,321.00 | |
| IGS Rubber Bands 500 ME | $1,816.00 | |
| JDK Audio V14 4 Band VPR 500 Format Equalizer | $992.00 | |
| Joe Meek meQ500 | $479.00 | |
| Kush Audio Clariphonic 500 | $949.00 | |
| Lindel Audio PEQ-510A | | |
| Lindell Audio MID-500 | $977.00 | |
| Lindell Audio PEQ-501a 500 Series Retro 2-band Program Equalizer | $812.00 | |
| Lindell Audio PEX-500 Passive EQ 500 Series | $510.00 | |
| Lindell Audio PEX-500VIN | $561.00 | |
| Lindell Audio RE-51 | $977.00 | |
| Neve AMS 1073LB, 1073LBEQ and 2264ALB Bundle | | |
| Neve AMS 1073LBEQ 500 | $1,548.00 | |
| Phoenix Gyrator-EQ-500 | $1,335.00 | |
| PULTEC EQP-500X 500 SERIES PROGRAM EQUALIZER | $2,177.00 | |
| Pultec MEQ-500 Jack Douglas Edition | | |
| Purple Audio LILPEQr | | |
| Purple Audio LILPEQrM 500 Series | | |
| Purple Audio Odd | | |
| Purple Audio Tav | | |
| Roll Music RMSM5F Valveq 500 Series | $1,198.00 | |
| Roll Music Vacbax Tube Equalizer 500 Series | $1,198.00 | |
| Rupert Neve Designs 551 | $1,440.00 | |
| Speck Electronics EQF 810 Parametric Equalizer | $1,498.00 | |
| TK Audio TK-lizer 500 | $2,112.00 | |
| TONELUX EQ5P 500 SERIES PARAMETRIC EQ | | |
| TREE AUDIO BAX EQ 500 SERIES EQUALIZER | $1,644.00 | |
| TREE AUDIO TREEQ 2 500 SERIES 2-BAND PARAMETRIC EQUALIZER | $1,644.00 | |
| TREE AUDIO TREEQ 4 500 SERIES 4-BAND PARAMETRIC EQUALIZER | $1,644.00 | |
| Trident 80B EQ 500 | $621.00 | |
| Wunder Audio Allotrope EQ | | |
