EQ · one of the 47
EA-PQ
The low-end trick every classic record used.
The passive tube program EQ — boost and attenuate the lows simultaneously for weight that stays tight, plus a silky bandwidth-controlled high boost.
- Formats
- VST3 · AU · AAX
- Runs on
- macOS + Windows
- Licensing
- iLok · no dongle
- Installs via
- Echelon Hub
Own it
Pick the units; we’ll show you whether a pack beats buying them one at a time. Flagships (the $149+ units): the Pick 3 includes 1, the Pick 5 2; each beyond that is +$49.
6 × $6.50, then EA-PQ is yours · $39.00 total, no interest. Cancel or pay off anytime. USD.
Trial covers all 47 units, then $17.99/mo. Buy Now goes straight to checkout.
macOS (Universal) + Windows · iLok · New plugins drop Oct 30
Not today? so it’s easy to find again.
01HF BOOST
Silky High Boost
A high-boost bell with its own bandwidth control.
02STEPPED FACEPLATE
Instantly Recallable
Every setting sits on a stepped, recallable faceplate.
03PASSIVE PROGRAM EQUALIZER
The Low-End Trick
Boost and attenuate at once. Weight that stays tight.
04TUBE + IRON
Tube and Iron
A tube gain stage and output iron in the path.
05INDEPENDENT BOOST + ATTENUATION
Independent High Shelf
High attenuation has its own frequency, apart from the boost.
Hear it · one instance · level-matched
Raw, then EA-PQ.
Measured on this demo · method
Bench receipts · what shipped had to prove
- Ship-gate battery green · auval PASS
- Low boost+atten trick measured: resonant shelf with the tightening dip above it
- Tube THD 0.1–1%, monotonic with drive · bypass null
The face · v1.2.7 · VST3 · AU · AAX
What opens in your DAW.
The film builds EA-PQ as hardware. This is the interface itself, exactly as it ships.
Walkthrough · 33 s · sound on
EA-PQ in 33 seconds.
What it's doing, then the same passage with EA-PQ bypassed and in — level-matched, on its own faceplate — and the quick facts.
Why it exists
passive tube EQ
Boost the lows with a modern EQ and the mud comes with the weight. The sixty-year-old answer is the passive trick: boost and cut the same shelf at once, and the curve grows a resonant lift with a tightening dip right above it.
EA-PQ models the passive network, the tube gain stage and the iron — so the trick works the way the faceplate promises. High boost is a bell with a BANDWIDTH knob: wide for sheen, narrow for presence. Stepped controls make every move recallable.
In the session
- 01Run the boost + atten trick for big, tight low end.
- 02Lift the top with a wide bell that never gets brittle.
- 03Warm everything a touch just by passing through the tube.
- 04Recall any move — the faceplate is stepped like the hardware.
Under the hood
What's inside EA-PQ.
- Passive curves — the low boost + atten trick
- High-boost bell with bandwidth control
- Tube gain stage + output iron
- Stepped, instantly recallable faceplate
System requirements
- Version
- v1.2.7
- Formats
- VST3 · AU · AAX
- macOS
- macOS 11+ · Apple Silicon + Intel (Universal)
- Windows
- Windows 10/11 · 64-bit · VST3 + AAX
- Licensing
- iLok · machine, cloud or USB
- Delivery
- Echelon Audio Hub
Buyer's guide
Which EQ?
Four EQs, four reasons.
Straight answers
Before you run EA-PQ.
Which DAWs does EA-PQ work in?
Pro Tools (AAX); Logic Pro and GarageBand (AU, macOS); Ableton Live, FL Studio, Cubase, Studio One and Reaper (VST3). It ships as VST3, AU, AAX on macOS and Windows. The install guide covers where each format lands and how to rescan if a host doesn't see it.
What are the system requirements?
macOS: macOS 11+ · Apple Silicon + Intel (Universal). Windows: Windows 10/11 · 64-bit · VST3 + AAX. Licensing is iLok; no USB dongle is required.
Does EA-PQ add latency?
Where the engine needs lookahead or oversampling, EA-PQ reports its latency to your DAW, which compensates automatically, so it stays in time with the rest of the session. On a live input, check your host's low-latency or monitoring mode.
Can I try EA-PQ before buying?
Yes, through the subscription: the 7-day trial covers every unit, EA-PQ included, with nothing charged until it ends. Individual plugins and bundles don't have separate trials.
Do I need an iLok dongle?
No. The license lives on your iLok account and can be activated to your computer, to iLok Cloud, or to a USB key — your choice.
How do I install it?
Through the Echelon Audio Hub: sign in once, and it installs, updates and rolls back every unit you own or subscribe to.
Are updates free?
Yes. A perpetual EA-PQ license includes every update to EA-PQ; subscribers get updates and every new unit as it lands.
What if it doesn't work for me?
Perpetual licenses have a 7-day refund window from purchase, as long as the license is surrendered from your iLok account. On the subscription, cancelling inside the trial means you pay nothing. If something is broken and support can't fix it, we'll make it right regardless.
Ready when the session is
Run EA-PQ tonight.
All 47 units free for 7 days, or own EA-PQ outright for $39.