Letshuoer EJ07M: Jack of All Trades, Master of All.

Pros

• Nice metal build 
• Surprisingly small size as a tribrid
• Easy to drive
• Impactful, rumbly bass 
• Clean yet weighted lower midrange
• Soothing upper midrange with just enough energy
• Super smooth treble with sufficient sparkle 
• Good treble extension & air without sounding artificial
• Great resolution and separation 
• Impressive holographic imaging 
• Surprisingly adequate note weight

Cons

• Terrible stock cable 
• Short nozzle will affect fit for some
• Pressure build up
• Driver flex for some
• Average soundstage width and depth 

Disclaimer

• I spent my own money to buy this, so all thoughts and opinions are my own, and are not influenced in any way. 
• Please take this review with only a grain of salt, as everyone's hearing, fit, and gears may differ, so our experience may be different.

Price(MSRP)

• $669.99

Source(s)

• It is fairly easy to drive
• Even on the JM6 Pro, I only 30-40% volume at most. However, I do think that it is best to pair it with a more neutral source to tighten up the bass instead of a warm source, so I usually use it with W3 II.
• Topping DX1
• HiBy W3 II
• JCally JM6 Pro

Ear tips

• Dunu S&S

Unboxing and Review Video

Packaging

• Letshuoer EJ07M
• Metal storage case
• Feels extremely premium but also very heavy
• Good for storing in a collection but not practical to carry around
• Wide selection of ear tips.
• 3 pairs of generic silicone ear tips (S, M, L)
• Looks and feels like a 07 clone, which are pretty decent. 
• 3 pairs of softer silicone ear tips (S, M, L)
• These actually feel quite nice. Smooth and soft. 
• 3 pairs of memory foam tips
• High-purity, silver-plated OFC cable
• Probably one of the worst cables I have used. 
• They feel fine but totally unacceptable for a product of this tier.
• Uncomfortably small and tight ear hooks, I can't fit the EJ07M AT ALL with the stock cable.
• Cleaning brush

Build Quality

• Build quality is excellent for the price, completely made out of metal, but not heavy at all.

Fit

• Nozzle is very short and wide. Stubby. 
  
• It is overall quite lightweight, and the shell is not that huge considering that this is a tribrid. 
• Fits ... surprisingly well for me, especially with Dunu's S&S tips. Very comfortable. 
• Only very slight pressure build up for me, without driver flex.
• However, 90% of the people I know who tried the EJ07M complained about major driver flex, fit, and pressure issues.

Resin

• However, most of the fit issues can be mitigated if you select the resin option while buying.
• Even if you already own a pair of metal shell version of it, you can still contact them to send back for them to do it for an extra $150-160.

• Changes for universal resin shells:
• Longer nozzle (More comfortable fit)
• Better venting (Less driver flex and pressure build up)
• However, sound may change slightly due to better fit 
• For me, I noticed a even more tamed treble response due to the deeper fit. 

• Below are a few examples from my friend's units!

Tonality

• Sub bass boosted neutral

Bass

• Sub bass quantity is noticeably more than mid bass, by quite a huge margin.
• Very rumbly. 
• Goes very deep and sounds very thick.
• Thumps and slams are present but isn't dominant. 
• Very well controlled and well textured, with decent speed and tightness. 
• Transition into midrange is very smooth, no bass tuck is audible to my ears unlike the Chopin or Variations.
• Quantity is a little more than average, fun but not overpowering at all. 
• Overall, the bass is very satisfying and fun to listen to, but I would just like to have a little bit more balance between the sub bass and the mid bass. 

Midrange

• Lower midrange is weighted yet remains clean and clear. 
• Male vocals and instruments in the lower midrange sounds full bodied and has excellent clarity.
• Upper midrange is perfect, slightly relaxing yet it has enough energy to pop out of the mix.
• Female vocals are not overly forward or recessed, the position and distance is just perfect to me.
• Never gets shouty at all, yet it never really stays at the background, absolute star of the show. 
• Overall, the midrange performance of the EJ07M is excellent. 
• Very well balanced from the lower midrange to the upper midrange.
• Perfect amount and synergy of everything, such as clarity, heft, and energy. 

Treble

• Treble is neutral to my ears, not bright nor dark. 
• However, since I'm a little sensitive to treble, I can see this to be on the slightly darker side if you prefer brighter treble.
• It has a very smooth presentation, without any audible peaks to me. 
• Treble extension is done very well too, airy yet without sounding artificial at all.
• Details can be perceived very easily due to how smooth and well extended the treble is.
• Overall, the treble is just as impressive, ticking every box in my book. 

Technicalities/Others

• Resolution and detail retrieval is great.
• It is actually quite impressive that they are able to achieve this level of resolution without boosting the treble region for "artificial details". 

• Soundstage has a rather average width with decent depth. 
• However, it is very immersive and realistic to me.

• Imaging and accuracy is excellent. 
• Holographic 3D imaging with pinpoint accuracy. 

• Separation and layering is impressive as well, instruments and vocals are separated and spaced out very nicely. Never congested no matter how busy the track gets.

• Note weight is adequate, a little weighted but not overbearingly thick or thin at all. 

• Timbre is good. Natural without any oddities in any way but not the most impressive aspect of the EJ07M. 

Conclusion

• As a conclusion, The Letshuoer EJ07M is definitely an endgame worthy set to me. 
• It has a very pleasant, balanced and versatile tonality, pairing with top of the line technicalities.

• Extremely hard for me to nitpick since everything is so well balanced and well done. 

• However, I do hear many people complaining about the fit and comfort, which is caused by the inefficient venting and short nozzle, but personally I didn't encounter any of the issues.

Thanks for reading!