







Hear Deeper.
Some IEMs impress in the first minute, then feel thin and tiring.
P40 is tuned for depth and staying power, with a fuller picture that holds together.
It’s clarity you can live with, not brightness you endure.

Bass With Control.
When the bass gets big, vocals usually lose their place.
P40 keeps the low end weighty and punchy, but clean enough to stay out of the mids.
A dedicated 9mm dynamic driver builds the foundation without the bloom.

Vocals Stay Locked.
Ever notice how voices drift back the moment the beat drops?
P40 keeps vocals centered and solid, so the song doesn’t lose its focus when it gets busy.
That stability comes from a separate 7mm mid driver doing one job well.

Planar + PZT Air.
Treble is tricky. Too soft and you lose space, too sharp and you stop listening.
P40 adds air and fine texture without forcing brightness.
The 2nd-gen planar handles speed and detail, while PZT lifts overtones and atmosphere.

One Cable, Any Source.
Switching sources shouldn’t mean swapping cables or stacking adapters.
P40 includes 3.5mm + 4.4mm modular plugs, so your setup stays flexible from day one.
Paired with a Furukawa silver-plated cable and 0.78mm 2-Pin, it’s built to fit today and upgrade later.
Crafted.
With 18 years of acoustic experience behind us, EPZ builds products with refined tuning and thoughtful craftsmanship, so what you hear feels right and what you hold does too.

What’s in the Box?
IEMs ×1 Pair
Cable ×1
Carrying Case ×1
Eartips (S/M/L) ×1
3.5mm Adapter ×1
4.4mm Adapter ×1
Tech Details.
Tech Details.
FAQs.
FAQs.
FR Graph.
FR Graph.
EPZ P40 IEMs frequency response graph and frequency response curve.



