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Epsilon Series Premium Upgrade Cable for Headphone | IEM

Signature Guide

At Null Audio, we are reluctant to simply define our cables into high-end or entry but a large variety of distinctive designs, material compositions, and binding architectures that performs largely different sonically and ergonomically. This guide is to help you find the perfect synergy with your source and headphone, rather than pursuing the price tags.

Technical Highlight

Copper conductor in UPOCC cast.

High conductor count of 126 strands per wire, 504 strands per cable, in Litz 5 configuration.

Reduced resistance and unimpeded signal transmission.

Black insulating cable sleeve for prolonged durability and yellowing-resistance.

Maximum tensile strength and flexibility with reduced microphonics

Premier anodized aluminum alloy hardware

Specification

Conductor Material: UPOCC Copper

Wiring: 23AWG

Length: 1.2m (48") (Contact for custom length)

Weight: ~24g

Connector Color: NL4 - Black/Silver

Solder: NA Custom 10% Silver Solder

Pin Contact: High precision fabrication, 24k gold plated

Warranty: 1 Year

Build Note

Designed, handcrafted and shipped from Singapore.

Built-to-order. Lead time around 1 week. Production halt during Chinese New Year Holiday (19~31 Jan 2023). Shipment resumes from 1st Feb 2023 according to ordering sequence.

Optionally includes a inline remote supporting both iOS and major Android devices. The remote is equipped with a premium MEMS microphone for crystal clear call quality.

Ear guide (~10cm) is installed by default for commonly used IEM connectors (e.g. 2PIN, MMCX, IPX ect). Let us know if your IEM/headphone is modified or needs extra customization.

The slider is not installed for "Herringbone 8 Braid" version and microphone version.

Customer Reviews

Based on 17 reviews
94%
(16)
6%
(1)
0%
(0)
0%
(0)
0%
(0)
S
Stanley Q. (Victoria, CA)
Null Audio Epsilon

Got this cable for my 64Audio U4s, as flat 2-pin cables are not very common (most companies only ship cables with standard recessed 2-pin connectors, which look funky when paired with 64Audio's protruding socket assembly). The cable itself is relatively well-built, although the injection-molded plastic around the y-split does have some bit of fraying, and the plug does have a small, shallow dent. The wires itself are pliable, soft, and don't tangle. The ear hook itself is quite thick, but still comfortable. The fit and feel of this cable is significantly better than 64Audio's stock cables, which actually cost more (retail).

Sound wise, the U4s is definitely better than 64Audio's stock "Premium" cable (SPC material). It has a slightly poofier bass response, with more meat, but less control. The mids are relatively the same. And the treble is slightly more laid back, in that it kills some of the brightness/harshness the U4s, and many other tia-equipped 64Audio UIEMs I've heard. In general, it makes the U4s more palatable for my tastes.

The most surprising thing is that this sub-200 USD cable ships with a personalized card that has the owner's name hand-signed upon and a grey leather case, something lots of other boutique cable companies fail to do, especially with their entry-level products.

C
Chen J. (Toronto, CA)
You won't regret it

The cable connection is significantly better than factory original, and it rests comfortably around ears. Most importantly, my IE600 now sounds amazing.

B
Brennon N. (Fremont, US)
New Believer

Bought this because the stock IE900 cable is microphonic and unusable, but did not believe in cable audio quality improvements. This one proved me wrong. Crazy stuff.

B
Benjamin N.
Great cable, well made, good mic

Great cable to enjoy music and take office calls whether on phone or comp. Works well with different amps and portable amp/dacs.

H
Huangyan X. (Leeds, GB)
Upgrade my IE600

Audio quality has been upgraded in all aspects. The packaging is exquisite and the shipping speed is extremely fast. It only takes 4 days from Singapore to the UK. I will buy the company's products again and have recommended your company's products to my circle of friends and social media.

R
Ryan N.S. (Honolulu, US)
Null Audio Custom Cable

High quality product and packaging. Flawless.

Customer Reviews

Based on 17 reviews
94%
(16)
6%
(1)
0%
(0)
0%
(0)
0%
(0)
S
Stanley Q. (Victoria, CA)
Null Audio Epsilon

Got this cable for my 64Audio U4s, as flat 2-pin cables are not very common (most companies only ship cables with standard recessed 2-pin connectors, which look funky when paired with 64Audio's protruding socket assembly). The cable itself is relatively well-built, although the injection-molded plastic around the y-split does have some bit of fraying, and the plug does have a small, shallow dent. The wires itself are pliable, soft, and don't tangle. The ear hook itself is quite thick, but still comfortable. The fit and feel of this cable is significantly better than 64Audio's stock cables, which actually cost more (retail).

Sound wise, the U4s is definitely better than 64Audio's stock "Premium" cable (SPC material). It has a slightly poofier bass response, with more meat, but less control. The mids are relatively the same. And the treble is slightly more laid back, in that it kills some of the brightness/harshness the U4s, and many other tia-equipped 64Audio UIEMs I've heard. In general, it makes the U4s more palatable for my tastes.

The most surprising thing is that this sub-200 USD cable ships with a personalized card that has the owner's name hand-signed upon and a grey leather case, something lots of other boutique cable companies fail to do, especially with their entry-level products.

C
Chen J. (Toronto, CA)
You won't regret it

The cable connection is significantly better than factory original, and it rests comfortably around ears. Most importantly, my IE600 now sounds amazing.

B
Brennon N. (Fremont, US)
New Believer

Bought this because the stock IE900 cable is microphonic and unusable, but did not believe in cable audio quality improvements. This one proved me wrong. Crazy stuff.

B
Benjamin N.
Great cable, well made, good mic

Great cable to enjoy music and take office calls whether on phone or comp. Works well with different amps and portable amp/dacs.

H
Huangyan X. (Leeds, GB)
Upgrade my IE600

Audio quality has been upgraded in all aspects. The packaging is exquisite and the shipping speed is extremely fast. It only takes 4 days from Singapore to the UK. I will buy the company's products again and have recommended your company's products to my circle of friends and social media.

R
Ryan N.S. (Honolulu, US)
Null Audio Custom Cable

High quality product and packaging. Flawless.