Best 500 Series Equalizers: Top 10 Models To Shape Your Frequencies!

Best 500 Series Equalizers


Do not be fooled by the small and compact size of this equipment since this is a piece of gear that can significantly improve your workflow and the sound quality of the signals you are processing.

Many pro audio recording studios are adopting the 500 series format and the equalizers are no exception. If you are after EQ which will be at an affordable price and you need to fill a spot in your 500 series chassis, then you are at the right place to be!

There are many engineers from the Golden Age that are getting used to the new EQ versions and rely on them to add punch or clarity to their signals. You will be able to get very exclusive deals from many stores, but here we are going to focus on 500 series EQs that will fit any modern production.

We just want to let you know that we’ll list these Best 500 Series Equalizers Reviews in no particular order. They’ll be randomized as we don’t wish to sort them from best to worst.

Listed below are our Top 10 Best 500 Series EQs for 2023:

1. Solid State Logic 611EQ 500 Series Parametric Equalizer

Put epic console equalization in your rack with the SSL 611EQ 500 Series 4-band EQ module. The truth is, you really get two legendary EQs within the 611EQ. The SL 4000 E console has been used to mix numerous classic records.

Known for its punchy, grungy sound, the E-series channel strip is among the most beloved EQ designs ever created. Now with the brand new SSL 611EQ, you’ll be able to capture the sound of the unique “Brown knob” design from the early 80s in addition to the up-to-date “Black knob” design from the mid to late 80s in a single versatile 500-series package deal.

The 611EQ helps you to change the midrange bands between these two flavors of EQ so that you’ll be geared up to shape any materials to your liking. Add a preamp module and a dynamics processor, and also you’ve got an excellent customized SSL channel strip.

The SSL 611EQ encompasses a four-band design, offering loads of flexibility for tone shaping. Both the low and high band can be toggled from shelf to bell, permitting for broad changes or surgical precision. The midrange bands are totally parametric with controls for gain, frequency, and Q permitting for various tone sculpting options.

Solid State Logic 611EQ 500 Series Parametric Equalizer

  • Versatile 4 Band Channel EQ
  • Bell curve option for HF and LF
  • Fully parametric LMF and HMF with Q
  • Is based on the classic 611E Console Channel Strip

For EU
Solid State Logic 611EQ 500 Series Parametric Equalizer

2. API 550A 500 Series 3-band Equalizer

550A 3-band equalizer from API is a 500-series recreation of one of the very cherished EQ designs in music’s history, the revered 550, created by Saul Walker in the late 1960s. The equalizer gives a distinctive method to tone shaping that may be described as “versatility via simplicity”.

The equalizer is outfitted with a clutter-free front panel targeted around three filter bands which are managed by dual concentric pots. The blue pot permits one to pick a target frequency out of seven carefully chosen by API for their musicality, whereas the silver pot facilitates boosts and cuts in 2dB increments for as much as 12dB. Bands 1 and 3 may also be set to shelf/peak types through switches on the backside of the panel.

The 550A enjoys the API’s distinctive “Proportional Q” function that widens or narrows the Q relying on how excessive the boost/cut settings are. Remaining devoted to the API’s absolutely discrete circuitry, the 550A additionally options the model’s proprietary 2520 op-amp, which aids in the EQ’s excellent headroom of +30 dB clip degree. Merely add this little tone shaper to your setup, and benefit from the warmth of analog processing for years.

API 550A 500 Series 3-band Equalizer

  • 12 dB of boost / cut per band
  • EQ band 1 and 3 in selectable shelf / peak characteristics
  • Traditional API circuit design
  • Headroom up to 30+ dB

For EU
API 550A 500 Series 3-band Equalizer

3. Elysia Xfilter 500 Series Stereo Equalizer

The xfilter 500 is a real linked stereo EQ in the 500 series format. It offers you the rich sound of an all-class-A equalizer in a surprisingly reasonably priced bundle, with an exact stereo image based mostly on computer-selected, stepped potentiometers and low tolerance film capacitors.

Each single of its many elements – sound, features, circuitry, elements, design, materials, manufacturing – has been thought of over and over till there was simply nothing left to enhance. Mainly, every single part of this effective merchandise is customized, and most of those are made in line with the personal designs and specs from Elysia.

This EQ is severe about flexibility. It gives high and low shelf bands which may be switched into excessive and low cut filters with resonance, two mid-peak filters with broad and slim Q, plus further passive LC levels with shielded coils for a wonderful top end.

With its exceptionally open sound, straight transient projection, and strong punch, the xfilter is the proper match for the xpressor – or another piece of scrumptious outboard gear!

elysia xfilter 500 Series Stereo Equalizer

  • Additional passive high band
  • Stepped potentiometer (computer-selected)
  • Special low tolerance capacitors
  • Continuous mass shield

For EU
Elysia Xfilter 500 Series Stereo Equalizer

4. Pultec EQP-500X 500 Series Program Equalizer

In the early 1970s, after condensing the basic 3U model EQP-1A into the 2U form-factor model EQP-1A3 (with the very same elements and specs), Pulse Techniques launched a solid-state line amp model of the EQP-1A3.

This model, based mostly on the venerable API 2520 op-amp, is well-liked by some engineers for sure functions, akin to kick and bass. Pulse Techniques has taken this confirmed design to the next stage by packing them into the 500 Series type factor. These EQs deliver the entire punch and mojo of their full-sized counterparts.

The Pultec EQP-500X is a 500 series adaptation of the basic EQP-1A Passive EQ, mixing one of the best attributes of the EQP-1A3-SS and EQP-1S3-SS. The Pultec EQP-500X is based mostly on the API 2520 replacing the valves discovered in the original EQP-1A. The API-inspired op-amp provides a cleaner and extra clear tone without sacrificing the depth and musicality Pultec EQs are known for.

A combination of the EQP-1A3-SS and EQP-1S3-SS, the EQP-500X contains a distinctive mix of frequencies with an elevated quantity of high peak increase frequencies (1kHz, 2kHz, 3kHz, 4kHz, 5kHz, 8kHz, 10kHz, 12kHz and 16kHz). It additionally contains two shelving boost frequencies of 5kHZ and 10kHz. Excessive attenuation frequencies embrace the basic 5kHz, 10kHz, and 20kHz.

Pultec EQP-500X 500 Series Program Equalizer

  • Solid State
  • Chassis Module
  • 500 Series
  • Module Slot Count: 1 Slot

5. Rupert Neve Designs 551 500 Series Inductor Equalizer

Whereas there are dozens of firms like Heritage Audio constructing more-or-less correct clones of Rupert Neve’s early designs, Mr. Neve himself has by no means been one to depend on past glories, all the time enhancing and experimenting with new designs.

The Rupert Neve Designs 551 EQ is a three-band 500-series EQ, sharing the identical inductor-based design with the three-band EQ constructed into each of the Shelford 5051 EQ/Compressor and Shelford 5052 Mic Preamp and EQ.

This EQ could be considered a ‘best-of’ of Rupert Neve’s designs through the years, taking inspiration from the 1064 low-frequency band, whereas the midrange and high-frequency bands take their lead from the well-known 1073 EQ.

The Rupert Neve Designs 551 brings the thick lows, powerful midrange, and sweet highs of Rupert’s traditional inductor EQs to the compact 500 Series format for the very first time. So, what are inductors?

They’re wires wound around a coil that present a type of frequency-dependent resistance. After they saturate, they create fantastically musical harmonics that give your tracks the graceful, polished sound that has made Rupert’s consoles and gear so fascinating for over fifty years. That is an EQ with a really classic soul.

Rupert Neve Designs 551 500 Series Inductor Equalizer

  • Low EQ: +/-15 dB shelf or peak
  • Selectable for 35 Hz, 60 Hz, 100 Hz or 220 Hz
  • High / Peak switch to increase the Q-factor
  • Hi shelf: +/-15 dB shelf or peak, selectable for 8 kHz and 16 kHz

For EU
Rupert Neve Designs 551 500 Series Inductor Equalizer

6. Lindell Audio PEQ-501a 500 Series Retro 2-band Program Equalizer

Make your 500 Series rack prepared for critical tone with the Lindell Audio PeQ-501a, a single-channel Retro 500 Series 2-band equalizer primarily based upon the legendary Pultec EQP-1A.

Because of the vintage-style 1731 op-amp, a hand-wound inductor, and the transformer-balanced output, you may impart clean highs and substantial lows on anything from bass and drums to vocals and synths. With all rotary controls stepped for simple recall, the PeQ-501a is effectively fitted to mastering as well as recording and mixing.

The high- and low-frequency bands feature prolonged frequency ranges and assist in simultaneous boost and cut through impartial controls. A devoted toggle switch is supplied for true hardware bypass. The gold-plated PCB enhances conductivity and resists corrosion. The PeQ-501a occupies two slots in any 500 Series energy supply (required and obtainable separately).

The equalizer is able to deliver beautiful sonic outcomes, the highs are clean and velvety, and the low end is full-bodied and punchy. True bypass ensures entire preservation of the unique signal’s quality, permitting you to simply examine the processed and unprocessed variations of the incoming audio.

Lindell Audio PEQ-501a 500 Series Retro 2-band Program Equalizer

  • Hand-wound induction coil
  • Symmetrical output transformers
  • Hardware bypass switch
  • Design: 500 Series module

For EU
Lindell Audio PEQ-501a 500 Series Retro 2-band Program Equalizer

7. Maag Audio EQ4 500 Series 6-band Equalizer

The Mäag Audio EQ4 is a one-channel six-band equalizer with AIR BAND (shelf increase from 2.5 to 40kHz), suitable with the API 500-6B lunchbox and 500VPR rack systems.

Following its EQ3 and EQ3-D predecessors, the EQ4 offers unparalleled transparency and top-end presence whereas sustaining the true pure sound behind the mix. EQ changes are obtained with minimal phase shift and detent controls enable straightforward recallable settings.

The Air Band is an extremely broad boost-only shelf, and it really works wonders for certain things. Have you ever been outdoors after a thunderstorm, and the whole lot is clear, clear, and vibrant? That is what utilizing the Air Band feels like.

Inventor Cliff Maag, Sr says that this started with him attempting to figure out easy methods to add high-end without emphasizing harsh sibilance, and it took years for him to determine a solution – first launched within the now-classic NTI EQs and now refined here. He nailed it – it is actually nice on vocals.

All of the controls are stepped so it is simple to recall. Every band incorporates a gain range of +15/-4.5 dB, and we may positively use finer control – perhaps even +/-3 dB in 0.25 dB steps.

Maag Audio EQ4 500 Series 6-band Equalizer

  • Bypass: Yes
  • Frequency Response: 10Hz-75kHz
  • Manufacturer Part Number: EQ4-500

For EU
Maag Audio EQ4 500 Series 6-band Equalizer

8. API 560 500 Series Graphic EQ

Rising from the unique design of the equalizer section applied in the traditional API consoles of the 60s and 70s, 560 is a 10-band graphic equalizer condensed into a conveyable 500-series format module. The bands are positioned an octave apart from each other, and each allows for up to a 12dB boost or cut, making this equalizer an especially versatile tool for shaping the spectral content material of any sound.

Nonetheless, what makes 560 really distinctive is API’s “Proportional Q” design which naturally widens the Q at lower boost/cut settings and narrows it because the controls are pushed further. This makes the 560 adaptable to a variety of functions, from delicate enhancements to surgical cuts, and all the pieces in between.

Whereas 560 retains all the performance and musicality of the unique EQ design, API applied a couple of enhancements to make it an even better candidate for the trendy audio world. The elevated resolution within the ±4dB space, and phenomenal headroom achieved via the API proprietary 2520 op-amp lead to a true replica of the low-frequency spectra, and ensure the general consistency of the equalizer response even at most drastic settings.

Undoubtedly 560, while small in dimension, carries in itself a legacy of high-quality tones. There are other EQ variations out there as well, but the API are pioneers in this game. In any case, it has performed an enormous part in shaping the sound of numerous songs for many years. Now it is your turn to make something special with it.

API 560 500 Series Graphic Equalizer

  • Connectors:15 position .156 sp edge connector
  • Power Requirements:+/-12/18 Volts/DC, at 60 ma.
  • Size:1.5″ X 5.25″ X 6″ Deep
  • Actual Weight:1.5 lbs.

For EU
API 560 500 Series Graphic EQ
  • Filter Boost/Cut:+/- 12dB
  • Filter Slope:12dB per Octave at full boost or cut
  • Input Impedance:20 K Resistive, Balanced

9. Solid State Logic UltraViolet EQ 500 Series Equalizer

Utilizing SSL’s minimal phase-shift design, the UV EQ is good as a master equalizer and equally glorious on any stereo or mono signal handed through it.

The LF and HF sections are, like on the SiX, shelving designs however much more comprehensive. There are 8, 12, 16, and 20kHz accessible up top, with 30, 50, 70, and 90Hz handling the low-end. We love the wonderful top-end sheen and sparkle the 8 and 12kHz points produce, whereas the 16 and 20kHz settings add a halo of air and area hardly ever heard in solid-state designs

The LF shelf additionally works along with the HPF to supply fascinating curves. Nevertheless, in practice, the ‘low-end trick’ where you mix a low-end boost with a low-mid cut is just not potential by this technique alone. That’s not an issue, though, as utilizing the parametric mid-band section permits almost any curve you want to create.

That is because of the incredible amount of management over the width of the frequency band – the Q – available. Each of the LMF and HMF sections features variable Q control whereas engaging the distinctive Focus switch reduces the bandwidth further. This makes figuring out then eliminating problematic frequencies simple.

Solid State Logic UltraViolet EQ 500 Series Equalizer - best 500 series equalizers

  • LF Shelf EQ: +/- 9dB gain @ 30/50/70/90Hz
  • HF Shelf EQ: +/- 9dB Gain @ 8/12/16/20kHz
  • HMF Parametric EQ: +/- 9dB Gain @ 600Hz – 6kHz
  • LMF Parametric EQ: +/- 9dB Gain @ 100Hz – 1.1kHz

For EU
Solid State Logic UltraViolet EQ 500 Series Equalizer

10. Neve 1073LBEQ 500 Series EQ

The Neve 1073LBEQ captures the long-lasting sound of the unique Neve 1073 EQ circuit in a compact 500-series module. With three bands of massive, punchy EQ, the 1073LBEQ immediately provides a well-recognized lush sound to any recording.

Ever since its launch in 1970, the Neve 1073 has been the go-to preamp and EQ combo for engineers, producers, and musicians seeking that traditional analog sound. From pop to rock to hip-hop and more, the long-lasting sound of the Neve 1073 might be heard on numerous hit records over the past 50 years.

Splendid for adding warmth and depth to any vocal, bass, and acoustic guitar as well, the 1073LBEQ is the proper answer for audio professionals on the lookout for a compact, versatile EQ with a classic sound.

The mid-band is ideal for carving out space in busy mixes and including warmth and grit to instruments with fixed frequencies at 360 Hz, 700 Hz, 1.6 kHz, 3.2 kHz, 4.8 kHz, and 7.2 kHz. The low band is ideal for fattening up tracks with tight, punchy lows utilizing fixed frequencies at 35 Hz, 60 Hz, 110 Hz, and 220 Hz. Clear up your low end with a devoted high-pass filter, selectable at 50 Hz, 80 Hz, 160 Hz, and 300 Hz.

Neve 1073LBEQ 500 Series EQ

  • Electronically balanced inputs / outputs
  • Fully shielded housing for max. Shielding against electromagnetic influences

For US Customers
Neve 1073LBEQ 500 Series EQ


Getting a pro audio signal chain with 500 series is truly easy. The original signal can be processed through the audio gear that is made by the masters with the only purpose to improve your music quality.

Many of these EQs require only one slot in your chassis and if you have a good one, there will be enough power to complete the unit requirements. These modules are an example of how a small unit has the ability to add detail to the sounds you work on. Used on single channels and mix bus as well to processing single and multiple microphones can most definitely add the flare you might be missing.

If you are having any questions in regards to the topic we covered here in our article, feel free to let us know in the comment section and we will try to answer ASAP!



Nikoloski is the founder and main content writer and editor of Mixing Tips. With his experience in audio engineering, mixing, and mastering for over 15 years, will provide hands-on experience and expertise in all the matters covered on this website.

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