LETSHUOER EJ07M Tribrid Review – Dreimal Gut
Pros — Energetic, well resolving presentation; good tuning; small = comfy earpieces.
Cons — Strangely implemented EST causes narrow soundstage; deserves more accessories.
In this Article
Executive Summary
The LETSHUOER EJ07M is a very enjoyable neutrally-tuned vivid performer with an added bass boost.
Introduction
LETSHUOER are a Shenzhen company specializing in OEM. They are having a current hit with the $149 planar magnetic LETSHUOERS12. The LETSHUOER EJ07M are the company’s current flagship iem and improved version of their very first iem, the $850 EJ07.
Whilst I am always critical with newcomers skipping elementary school and taking shortcuts, the EJ07M is a good pair. I found it first non descript, but it slowly grew on me. And it grew quite big. It is an earphone more on the lean side without being sterile.
Specifications
| Drivers: -10mm Carbon nano dynamic driver -Sonion 4-in-1 EST65QB02 electrostatic driver -Sonion 2389*2 balanced armature drivers |
| Impedance: 19 Ω ± 1% |
| Sensitivity: 107 dB/mW |
| Frequency Range: 20 – 30,000 Hz |
| Cable/Connector: 100-strands 6N symmetrical OCC copper cable/2 pin, 0.78 mm |
| Tested at: $619 |
| Product Page/Purchase Link: letshuoer.net |
Physical Things and Usability
In the box is…actually not much for an iem of this price: the earpieces, an occ copper cable, 2 sets of silicone eartips (S/M/L), a little box with foams, a cleaning brush, a metal case, and the paper work. Just like the S12, the EJ07M features rather small earpieces, which provide for a good and comfortable fit (for me). They are made of aviation aluminum alloy with fancy, one-of-a-kind faceplates. The company claims they block up to 26 dB of ambient noise. Their low impedance makes them easily drivable.
I found the earpieces’s haptic and form factor great, but the isolation was only soso for me. The cable’s wire structure may be of great purity/quality, there is no microphonics, however the overall jewellery effect is rather small.
LETSHUOER’s translucent standard stock tips worked well for me.
Tonality and Technicalities
Equipment used: Sony NW-A55; Macbook Air + AudioQuest DragonFly Cobalt or Earstudio HUD100 (high gain); white stock tips.
The EJ07M is tuned in a gentle U-shape, with a bottom-end emphasis on sub-bass, a moderate pinna gain, and an early treble rolloff. It is essentially neutral with a sub-bass boost. The graph resembles “the personal target curve of the season” of many reviewers (we at www.audioreviews.org don’t have such a thing), which excludes disturbing peaks and other unpleasant surprises. Its presentation is on the lean but never analytical side.
Sub-bass extension is decent (and the rumble can be a bit fuzzy), mid-bass is focused/, slightly lean with a crisp attack and fast decay, much faster than expected from a single-dynamic driver. It has a good kick and tactility. There is no mid-bass hump that pounds unpleasantly against my eardrums.
Transition to the neutral lower midrange is smooth and without bleed because the low-end boost is so far below that it does not affect vocals and instruments (crisp piano), which have very concise note definition and energy. They are not overly rich but never thin and also not recessed (vocals can be intimate), and the corners can be somewhat sharp. The midrange is very clean and clear and there is no shoutiness (although we are getting close). All this makes for great speech intelligibility.
Treble rolloff starting at 4 kHz narrows the soundstage and limits sheen. This is surprising as you would expect outstanding extension from an electrostatic driver, as perfectly demonstrated in the Vision Ears Elysium, for example. High notes are very subtle and back. A very sparse use of the EST.
Soundstage has good depth but the aforementioned limited width. Dynamics is very good, there is plenty of impact in the attack. The music is more moving back and forth than sideways. Spatial cues is very good. Lean notes make for lots of space between instruments on a crowded stage and great midrange clarity. Transients are generally fast, particularly at the recessed top end. Resolution is very good!
In summary, the “edgy” EJ07M is well rounded (sic!) and does nothing wrong.
LETSHUOER EJ07M Compared
The $150 magnetic planar LETSHUOER S12 iem plays bassier, has a wider but shallower stage, a tad warmer, and therefore less neutral. The EJ07M offers better vocals rendering, better (micro-) dynamics, and similar resolution.
The more organic $600 single DD Oriolus Isabellae plays thicker, richer, softer, and more relaxed, lagging behind in resolution and crispness and energy in favour of timbre and a soothing temperature.
Compared to the warmer, bassier $699 Dunu Zen single DD, the EJ07M lacks depth and body and plays swifter and more brittle. The Zen has a pronounced upper midrange glare and an earlier treble rolloff.
Concluding Remarks
The LETSHUOER EJ07M excels by doing well in all departments, though not achieving the highest possible score in each of them. It delivers a swift, neutral sound with a boosted sub-bass and technicalities in line with its peers. Nevertheless is its main competition internal, as the excellent $150 LETSHUOER S12 is not far behind in most aspects.
Until next time…keep on listening!
Disclaimer
The EJ07M were provided by LETSHUOER and I thank them for that.
Get the LETSHUOER EJ07M from letshuoer.net.
Our generic standard disclaimer.
