Truthear Zero Blue 2 IEM | Dual DD Upgraded

Q: Does the Zero:BLUE 2 need an amplifier?

No - it is extremely easy to drive at 5.8 ohm and 119.5 dB/Vrms. Because its impedance is very low, pair it with a clean, low-output-impedance source for the best control; a good dongle DAC is ideal.

Q: What is the included 5-ohm adapter for?

It slightly increases bass presence for a warmer tuning. Add it if you want a touch more low-end; leave it off for the standard, more balanced sound.

Q: What does it sound like?

Clear and spacious with an enhanced sub-bass shelf - a coherent soundstage, natural placement, strong separation and above-average detail for the price.

Q: Is it a hybrid with balanced armatures?

No - it uses two dynamic drivers (10mm + 7.8mm) rather than armatures, which keeps the timbre natural while still separating bass from mids and highs.

Q: How is it different from the Zero:RED?

The Blue 2 leans toward an enhanced-sub-bass, spacious presentation and is even easier to drive, while the RED follows Crinacle's IEF target with punchy preference-curve bass. Both are dual-dynamic Crinacle collaborations.

Q: Is it good for gaming?

Yes - the imaging and separation make cues easy to place, and it stays comfortable for long sessions. Use your PC or console mic, or add a mic cable.

Q: Can I upgrade or replace the cable?

Yes. The 0.78mm 2-pin connector is a universal enthusiast standard, so you can fit upgrade cables, balanced cables, or a Bluetooth adapter.

Q: Which ear tips should I use?

Size for a firm seal first. Wider-bore tips open the treble and soundstage; foam tips add isolation and warmth.

Q: Do I need to burn it in?

No. Any change from burn-in is subtle, so you can use it straight out of the box.

Q: What is included and what is the warranty?

The earphones, a detachable 2-pin cable, a 5-ohm bass adapter, silicone tips and a pouch. Backed by 14-day cover against product defects with genuine-unit verification and cash on delivery across Egypt.

Overview

TRUTHEAR ZERO:BLUE 2 in Egypt

The Truthear x Crinacle Zero:BLUE 2 is a dual-dynamic-driver in-ear monitor tuned in collaboration with reviewer Crinacle for a clear, spacious sound with an enhanced sub-bass shelf. A 10mm driver with a silica-gel suspension and composite liquid-crystal dome handles the bass, while an upgraded 7.8mm PU-suspension driver covers the mids and highs - both fast, low-distortion and naturally voiced.

The result is an open, coherent presentation: a compact but well-organised soundstage, natural placement of instruments and vocals, strong separation and above-average detail for the price, with THD kept below 0.3%. An included 5-ohm impedance adapter lets you nudge the bass up for a warmer tuning whenever you want it.

At just 5.8 ohm and 119.5 dB/Vrms it is extremely easy to drive from almost any source - pair it with a clean, low-output-impedance dongle for the best control. A detachable 0.78mm 2-pin cable keeps it serviceable and upgradeable. Delivered across Egypt with cash on delivery.

Tuning

Sound signature

Bass-forward

Extra low-end punch. Vocals stay in the mix.

Above 0 dB = more energy at that frequency. Super Review · stock 10 ohm, stock tips.

This set vs typical Band Range What you hear

+7.45 dB Sub-bass 20-80 Hz Deep rumble

+0.91 dB Mid-bass 80-250 Hz Punch

-1.22 dB Lower mids 250-800 Hz Body

-0.03 dB Upper mids 800-2 kHz Vocals

+0.66 dB Presence 2-5 kHz Clarity

+7.07 dB Treble 5-8 kHz Sparkle

The figures on the left are this set compared with a typical target, averaged across each range. They describe the shape, not the quality. IEC 711 measurement at the boxed default. Shape above 8 kHz includes some of the lab gear.

Key features

Why it plays above its price

01

Dual dynamic drivers (10mm + 7.8mm)

Two dynamic drivers per side - a 10mm for bass and a 7.8mm for mids and highs - for a fuller, more layered sound than a single driver.

02

Dedicated bass + mid/high drivers

A dedicated low-frequency driver keeps the bass powerful while the smaller driver keeps mids and treble clean and separated.

03

Advanced suspension + LCD domes

A silica-gel-suspension 10mm driver with a composite liquid-crystal dome plus an upgraded PU-suspension 7.8mm driver deliver fast, low-distortion output.

04

Enhanced sub-bass tuning

A Crinacle-tuned response with an enhanced sub-bass shelf adds rumble and warmth while keeping the mids clean.

05

Clear, spacious sound

The Blue 2 is clear and open, with a compact yet coherent soundstage and natural placement of instruments and vocals.

06

Strong separation and imaging

Above-average detail retrieval and solid imaging for its price make busy tracks easy to follow.

07

Very low distortion

THD below 0.3% keeps the sound clean even at higher volumes.

08

Included 5-ohm bass adapter

A 5-ohm impedance adapter in the box lets you nudge the bass up for a slightly warmer tuning.

09

Ultra-easy to drive

At just 5.8 ohm and 119.5 dB/Vrms it reaches full volume from almost any source, including phones and dongles.

10

All-dynamic natural timbre

Because both drivers are dynamic, instruments and voices keep a natural, cohesive tone.

11

3D-printed resin shells

Precisely printed resin housings give tight tolerances and a comfortable, secure fit.

12

Detachable 0.78mm 2-pin cable

Swap or upgrade the cable freely, add a Bluetooth or DSP adapter, or replace a worn cable without replacing the earphones.

13

Strong passive isolation

The sealed in-ear design blocks outside noise for commutes and noisy rooms - no battery and no ANC hiss.

14

Serviceable and upgradeable

The universal 2-pin connector means you can fit upgrade cables or a Bluetooth adapter down the line.

Specifications

Full specification

Brand Truthear

Model Zero:BLUE 2 (x Crinacle)

Type Wired in-ear monitor (IEM)

Driver configuration Dual dynamic - 10mm (bass) + 7.8mm (mid/high) per side

Bass driver 10mm silica-gel suspension, composite LCD dome

Mid/high driver 7.8mm PU suspension, LCD dome

Tuning Crinacle-tuned, enhanced sub-bass

Impedance 5.8 ohm (+/-15%)

Sensitivity 119.5 dB/Vrms @ 1kHz

THD < 0.3% @ 1kHz (94dB)

Frequency response 9 Hz - 41 kHz

Effective FR 20 Hz - 20 kHz

Included adapter 5-ohm impedance adapter (bass adjust)

Connector 0.78mm 2-pin (detachable)

Cable Silver-plated copper

Plug 3.5mm single-ended

Shell material 3D-printed resin

Microphone No (audio-only; add a 0.78mm 2-pin mic cable if wanted)

Active noise cancelling No (passive isolation only)

Wireless No (add a 0.78mm 2-pin Bluetooth adapter)

In the box IEMs, 2-pin cable, 5-ohm adapter, silicone tips, pouch, manual

Warranty 14 days, defects - genuine-unit verified

Why choose

Is the TRUTHEAR ZERO:BLUE 2 right for you?

A Crinacle collaboration with a clear, spacious, enhanced-sub-bass tuning.
Dual dynamic drivers for natural timbre with strong separation and imaging.
Very low distortion and above-average detail for the price.
Included 5-ohm adapter lets you add bass warmth to taste.
Serviceable and upgradeable - detachable 2-pin cable means longevity and easy upgrades.
A refined, easy-to-drive everyday IEM with real sub-bass rumble.

Best for

Sub-bass lovers who want claritySpacious, detailed listeningMulti-genre all-rounderTuning bass with the adapterCommuting (strong isolation)A refined dual-dynamic IEM

Delivery & payment

Shipping, payment & returns

Delivery

Ships in 48h — weekends may vary. Nationwide courier across Egypt, next-day where available.

Payment

Cash on delivery, Telda, Instapay or Vodafone Cash.

Warranty & returns

14-day cover against product defects. Unopened items can still be returned within 14 days.

Questions

TRUTHEAR ZERO:BLUE 2 — frequently asked

Does the Zero:BLUE 2 need an amplifier?+

No - it is extremely easy to drive at 5.8 ohm and 119.5 dB/Vrms. Because its impedance is very low, pair it with a clean, low-output-impedance source for the best control; a good dongle DAC is ideal.

What is the included 5-ohm adapter for?+