EPZ K5 IEMs

Regular price: $120.99
Regular price
Sale price: $120.99

Tax included.

Black (3.5mm + 4.4mm) Green (3.5mm + 4.4mm)

30-Day Returns

Standard return window included

Duties & Taxes Included

No hidden import fees

Free Shipping

On orders over $49.99

1-Year Warranty

Official EPZ coverage

Worried About Sound or Fit?

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Add optional EPZ® Care+ in your cart for free no-reason return shipping and extended warranty coverage.

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Hybrid done right.

1DD plus 4BA setup.

Clean separation. Full sound.

Fast and controlled.

LCP plus PU diaphragm.

Bass hits clean and stays tight.

Easy on more sources.

28 ohms and 114dB sensitivity.

Phone, dongle, or player all work well.

One cable, two ways.

3.5mm and 4.4mm in one set.

Easy to switch. Easy to match.

Made for long sessions.

3D printed resin shell.

Light fit. Good seal. Easy comfort.

EPZ On the Road.

Founded in 2019

EPZ is backed by more than 18 years of audio manufacturing experience.

Around the world

Meet EPZ at audio shows, gaming events and community gatherings worldwide.

Technology and patents

EPZ develops proprietary technologies and holds multiple patents across its product range.

Industry collaborations

EPZ has created co-branded projects with professional esports teams, recording artists and audio brands.

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What’s in the Box?

IEMs ×1 Pair

Cable ×1

Carrying Case ×1

Eartips (S/M/L) ×3

3.5mm Adapter ×1

4.4mm Adapter ×1

Ordering & Support.

How much is shipping?

Standard Shipping is free on orders of USD $49.99 or more. Orders below USD $49.99 are charged USD $4.99. Express Shipping rates and available destinations are shown at checkout.

When will my order arrive?

In-stock orders are usually processed within 1–2 business days. Standard Shipping usually takes 5–10 business days after the first tracking update. We’ll email you a tracking number once your order ships.

Will I need to pay duties or taxes?

No. Duties and taxes are included on orders placed at epzaudio.com. The price shown at checkout is the final price, with no additional import duties, VAT, tariffs, or customs handling fees expected on delivery.

Can I return or exchange my order?

Eligible products may be returned or exchanged within 30 days of delivery. For returns based on sound, fit, or personal preference, return shipping is normally paid by the customer unless covered by EPZ Care+ or applicable law. Contact us before sending anything back.

What if my order is damaged, incorrect, or faulty?

Contact us with your order number and photos or video showing the issue. Once confirmed, EPZ will provide an appropriate solution and cover approved return shipping costs.

Still need help?

Send us a message and our support team will get back to you.

Tech Details.

Model

EPZ K5 IEMs

Driver Configuration

1 Dynamic Driver + 4 Balanced Armature Drivers

Frequency Response

20Hz–20kHz

Sensitivity

114dB (±2dB)

Impedance

28Ω

Cable Interface

0.78mm 2-Pin

Plug Type

3.5mm Single-ended / 4.4mm Balanced (2 in 1)

Cable Length

1.2M (3.94ft)

FAQs.

Q Who is the EPZ K5 for?

K5 is for listeners who want a clear, detailed presentation without losing musicality. It fits daily listening, long sessions, and anyone upgrading from basic earphones.

Q What is the driver configuration?

K5 uses a 1DD + 4BA hybrid design for better separation across bass, mids, and treble. The dynamic driver anchors the low end, and the BA drivers focus clarity and layering.

Q Is K5 easy to drive?

Yes. With 28Ω impedance and 114dB sensitivity, it plays well from phones and most portable sources.

Q What connectors does it use?

K5 uses a 0.78mm 2-pin detachable cable. It includes a 2-in-1 plug system with 3.5mm and 4.4mm options for different sources.

Q What is the shell made of, and how is the fit?

The shell uses a 3D-printed resin cavity designed for comfort and stable wear. It is shaped for long sessions and everyday portability.

FR Graph.

← SWIPE TO VIEW DATA →

Measurement data provided by EPZ Acoustic Laboratory. Test Equipment: Brüel & Kjær 4128CHead and Torso Simulator (HATS).

Reviewed by the Community.

I am satisfied with the headphones! They were well packaged, it's clear that the seller cares about the customer. The packaging is reliable and the headphones arrived in perfect condition.
I chose them in green and they look simply fantastic! Separate "wow" for the transparency of the case: you can see all the "filling" of the headphones, which adds them to uniqueness and technical attractiveness-you can sit and look at the insides.
The earphone body itself is small and convenient, they are lightweight, sit perfectly comfortably in the ear, and this is also thanks to the rich set of ear pads. For me, the "Christmas tree" ear pads were a perfect fit, providing maximum comfort and sound insulation.
I would like to mention a great case — it's compact, stylish, and well-made.
The sound "out of the box" is good! I switched from dynamic models to these and am still getting used to the new sound character. It's very interesting to see how they will unfold after warming up.
Overall, this is a great purchase that I am very satisfied with! I recommend!

I'm not an expert, I only bought it for an external audio card for games and music on a computer. But compared to the FH3 FIIO, they sound cleaner and the bass is deeper. Much lighter, although they are the same sizes. Beautiful, good assembly quality. The ear pads didn't fit, I had to take the old ones.
The only minus is that there is no markings on the 4.4, 3.5 adapters, and if you do not connect correctly, the sound will be reverse, the left one will become right, in the right left ear. Be careful, judging by the comments, many people still don’t understand why the sound is distorted.

if you need light, air, spatial sound, then you are here. just wonderful headphones, especially for that price. It should be taken into account that the bass shelf has been reduced and there is a early drop on itself, but without this we would not have achieved such an open sound. Nevertheless, the headphones are musical and there is a mass on the bass, but the volume is reduced. There are headphones that are twice as expensive, but in my opinion they are at the same level as k5. The cable here is better than hybrid or good copper. Silver or graphene will be illuminated without that light sound. It seems that the new versions already come with a copper cable. The ear pads have to be tightly pulled on a long ear pad. Suitable with wide soles, like epz m100. If they were included in the kit, instead of garbage rubber bands, it would be much better.

The packaging is weak, but arrived normally. Please note that the configuration has changed. Now the cable is different, not the one that the reviewers had.

Very pleasant to the touch, excellent assembled and great materials
By sound-yes, that's what you were looking for. I am fully convinced that they are universal.
There is a very clear middle, high enough, and an extremely responsive point Bass (and quite a lot of it). Listening to the instrumental is a pleasure, as is live recordings. Managed to drive shugeyes, droon, folk, some electronics and synth pop on them-everything sounds like it should.
They are also comfortable-small ones and sit well in their ears.
The complete case is as nice as possible, the cable is excellent, no need to change.