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Trident 80B EQ 500 Series 4-Band EQ

500 Series four-band EQ with sweepable mid bands
MFR# 80B-500EQ

Product Description

Trident has brought the great sound of the 80B EQ, a sound featured in so many classic 70s rock recordings, to a 500 Series module - the Trident 80B EQ 500.

Operating the EQ:

Inspired by the legendary Trident Series 80 console, the Trident 80B 500 Series EQ puts the sound of countless classic recordings right in your 500 series rack. With frequency-switchable high and low shelving bands, two sweepable midrange bands with resonant Q peaks, and a switchable high-pass filter, the 80B Series 500 EQ gives you an exceptional degree of control over your sound.


The Series 80B 500 EQ is equipped with two bands of versatile shelving EQ. The low band offers ±15 dB at 60 or 120 Hz for making your kick drums knock and your bass guitars thunder. Keep your low end in check with a switchable 50 Hz high-pass filter. Add brilliance and air to your recordings with the high band, which offers ±15 dB at 8 kHz or 12 kHz — perfect for acoustic guitars and cymbals.


Equipped with two variable midrange bands, the Series 80B 500 EQ captures the classic punchy color and character of the original Series 80 console EQs. Both the low mid and high mid bands are peaking filters with resonant Q technology for an exceptional musicality. With overlapping frequency ranges from 100 Hz - 1.5 kHz on the low mid-band and 1 kHz - 15 kHz on the high mid-band, the Series 80B 500 EQ offers plenty of flexibility for sculpting crucial midrange frequencies.


The Series 80B 500 EQ captures the unique sound of Trident’s iconic Series 80B consoles from the late 1970s by using an exact replica of the original circuit design. Known for their powerful low-end and punchy midrange, the Series 80B EQs have used by world-class artists such as Elton John, David Bowie, Stevie Wonder, Radiohead and more.


  • Four-band EQ
  • Sweepable Mid Bands
  • Lo Freq can be switched between 60 and 120 Hz
  • Hi Freq switchable between 8 and 12 kHz
  • Lo Mid sweepable from 100 to 1.5 kHz
  • Hi Mid sweepable from 1 to 15 kHz
  • 50 Hz Hi Pass Switch
  • Peak Overload LED
  • Bypass Switch

Product Specifications

Condition New
Chassis Module
Module Type 500 Series
Module Slot Count 1 Slot

Product Reviews

5 out of 5 stars.
Review Count (2)

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Have not had it for long, but its been great so far.

By Wyatt on September 15, 2020

This is a great unit! I'm a voice actor, so my primary application of this has been on my vocal recording chain - currently using it to tame a little bit of small booth bass resonance and roll off just a bit of the high end on my MKH 416, which can be a little sharp. This does the job very well, the bands are wide enough that they are great for minor "broad strokes" tweaks like I'm doing and between all 4 bands you can very easily tweak what you want to tweak! The sound is very subtle and pleasant. I think my only complaint would be the fixed two high and low shelving frequencies, but they're placed in good spots and are totally usable for most cases.

By Arthur T on September 3, 2020

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