Single-slot 3-band valve EQ with high and low cut filters for the 500 Series format
Crane Song 500 Series Insigna Valve EQ
Single-slot 3-band valve EQ with high and low cut filters for the 500 Series format
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500 Series EQ featuring two-bands with discrete transistor and reciprocal active inductor.
Electrodyne 511 500 Series EQ
500 Series EQ featuring two-bands with discrete transistor and reciprocal active inductor.
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500 series two band discrete transistor and active inductor EQ based on Electrodyne’s classic 1960’s and 1970’s design.
Electrodyne 511b 500 Series EQ
500 series two band discrete transistor and active inductor EQ based on Electrodyne’s classic 1960’s and 1970’s design.
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Class A, true stereo 2-slot 500-series four-band EQ module with precise stereo image and computer-selected stepped potentiometers
Elysia Xfilter 500
Class A, true stereo 2-slot 500-series four-band EQ module with precise stereo image and computer-selected stepped potentiometers
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Single-slot four-band EQ for 500-series format using LC filters and very short signal path to ensure truly pristine sound
Fredenstein F603A
Single-slot four-band EQ for 500-series format using LC filters and very short signal path to ensure truly pristine sound
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500 Series EQ with Class-A circuit similar to the Neve 1073
Golden Age Project EQ573
500 Series EQ with Class-A circuit similar to the Neve 1073
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4-band parametric EQ for 500-series with VF600 discrete amp blocks to add warmth and definition
Inward Connections The Brat 500-series 4-band Parametric EQ
4-band parametric EQ for 500-series with VF600 discrete amp blocks to add warmth and definition
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Single channel, 500-series version of the Clariphonic featuring the exact same circuitry.
Kush Audio Clariphonic 500
Single channel, 500-series version of the Clariphonic featuring the exact same circuitry.
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Electrified Transient Parametric EQ.
Kush Audio Electra 500
Electrified Transient Parametric EQ.
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500-series transformer-less 3-band EQ based on the 583e mic preamp module. Transparent and with minimal phase shift
LaChapell Audio 503 500-Series EQ
500-series transformer-less 3-band EQ based on the 583e mic preamp module. Transparent and with minimal phase shift
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The Maag Audio EQ4 is a single channel 6 band equalizer with AIR BAND, compatible with the 500 Series format.
Maag Audio EQ4
The Maag Audio EQ4 is a single channel 6 band equalizer with AIR BAND, compatible with the 500 Series format.
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500 series adaptation of the MEQ-5-SS solid-state midrange Pultec EQ designed with the input of legendary engineer Jack Douglas
Pultec MEQ-500 Jack Douglas Edition
500 series adaptation of the MEQ-5-SS solid-state midrange Pultec EQ designed with the input of legendary engineer Jack Douglas
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