FATfreq x Effect Audio: Quantum VS Letshuoer EJ07

IEM Comparison: Expert & Community Scores Side-by-Side

IEMRanking.com Home Compare IEMs
My Ranking My Favorites

FATfreq x Effect Audio: Quantum and Letshuoer EJ07 are in-ear monitors. FATfreq x Effect Audio: Quantum costs $770 while Letshuoer EJ07 costs $900. Letshuoer EJ07 is $130 more expensive. Letshuoer EJ07 holds a decisive 1.1-point edge in reviewer scores (6.8 vs 8). FATfreq x Effect Audio: Quantum has better bass with a 0.5-point edge, Letshuoer EJ07 has significantly better mids with a 3-point edge, Letshuoer EJ07 has significantly better treble with a 1.5-point edge, Letshuoer EJ07 has significantly better soundstage with a 1-point edge, Letshuoer EJ07 has significantly better details with a 2-point edge and Letshuoer EJ07 has significantly better imaging with a 2-point edge.

Insights

Metric FATfreq x Effect Audio: Quantum Letshuoer EJ07
Bass 7.5 7
Mids 5 8
Treble 5 6.5
Details 6 8
Soundstage 6.5 7.5
Imaging 5.5 7.5
Dynamics 9 8
Tonality 6.4 8.5
Technicalities 6.9 7.9

FATfreq x Effect Audio: Quantum Aggregated Review Score

Average Reviewer Scores

Shuwa-T
Jaytiss Jays Audio

Average Reviewer Score:

6.8

Cautiously Favorable

Show all FATfreq x Effect Audio: Quantum reviews

Letshuoer EJ07 Aggregated Review Score

Average Reviewer Scores

Shuwa-T
Jays Audio Audionotions

Average Reviewer Score:

8

Strongly Favorable

Show all Letshuoer EJ07 reviews

FATfreq x Effect Audio: Quantum Details

Driver Configuration:

Tuning Type: n/a

Price (Msrp): $770

Support our free service! Buying through our affiliate links costs you nothing extra:

Buy your next IEM on
Linsoul
Support our free service! Buying through our affiliate links costs you nothing extra
Buy your next IEM on
HiFiGO
Support our free service! Buying through our affiliate links costs you nothing extra
Buy your next IEM on
Aliexpress
Support our free service! Buying through our affiliate links costs you nothing extra

Letshuoer EJ07 Details

Driver Configuration:

Tuning Type: n/a

Brand: Letshuoer Top Letshuoer IEMs

Price (Msrp): $900

Support our free service! Buying through our affiliate links costs you nothing extra:

Buy your next IEM on
Linsoul
Support our free service! Buying through our affiliate links costs you nothing extra
Buy your next IEM on
HiFiGO
Support our free service! Buying through our affiliate links costs you nothing extra
Buy your next IEM on
Aliexpress
Support our free service! Buying through our affiliate links costs you nothing extra

FATfreq x Effect Audio: Quantum User Review Score

Average User Scores

Average User Score: n/a

Based on 0 user reviews

No user reviews yet. Be the first one who writes a review!

Letshuoer EJ07 User Review Score

Average User Scores

Average User Score: n/a

Based on 0 user reviews

No user reviews yet. Be the first one who writes a review!

FATfreq x Effect Audio: Quantum Gaming Score

Gaming Score & Grade

  • The gaming score is prioritizing technical capabilities of the IEM (Separation, Layering, Soundstage) and good value.

Gaming Score

6.3

Gaming Grade

B

Letshuoer EJ07 Gaming Score

Gaming Score & Grade

  • The gaming score is prioritizing technical capabilities of the IEM (Separation, Layering, Soundstage) and good value.

Gaming Score

7

Gaming Grade

A-

FATfreq x Effect Audio: Quantum Scorings

Average Technical & Tuning Grades

Average Tunign Grade

B
  • Generally enjoyable tonal character with some noticeable unevenness. Maintains listenability while showing room for refinement in frequency balance.

Average Technical Grade

B+
  • Satisfactory technical performance. Handles basic detail retrieval adequately in most tracks. Maintains reasonable cohesion in simpler arrangements.
Bass A
Strong, well-defined bass with good texture. Delivers satisfying punch and rumble without overwhelming other frequencies.
Mids C+
Decent midrange performance - balanced but unremarkable. Adequate clarity for most genres without notable flaws.
Treble C+
Decent treble with acceptable extension and detail. Can sound slightly unrefined but avoids being harsh or sibilant.
Dynamics S
Reference-class dynamics: perfect micro/macro contrast with lightning transients. Utterly realistic reproduction of musical energy.
Soundstage B+
Good soundstage with proper width and depth. Instruments have clear positioning with reasonable front/back placement.
Details B
Good resolution with clear articulation of nuances. Reveals recording nuances and maintains clarity in complex passages.
Imaging B-
Decent positional accuracy. Good left/right placement with acceptable center image, though depth positioning is approximate.
Gaming B
Decent spatial awareness for fundamental positioning. Creates satisfying atmosphere in story-driven games while handling basic directional cues. Bad value-to-cost for gaming purpose - not recommended

Letshuoer EJ07 Scorings

Average Technical & Tuning Grades

Average Tunign Grade

S-
  • Highly polished technical execution. Excellent frequency synergy creates an immersive experience. Enhances musical content.

Average Technical Grade

A
  • Good technical performance. Clear separation and decent detail retrieval across various tracks. Soundstage shows reasonable width and depth.
Bass A-
Strong, well-defined bass with good texture. Delivers satisfying punch and rumble without overwhelming other frequencies.
Mids A+
Superb midrange that's rich and resolving. Exceptional transparency and micro-details with perfect vocal/instrument balance.
Treble B+
Good treble response - clear and detailed without fatigue. Well-extended with proper air and sparkle.
Soundstage A
Excellent spatial presentation - wide, deep and tall. Precise instrument placement with clear separation in all dimensions.
Details A+
Exceptional resolution that uncovers the deepest layers. Retrieves even the most minute details while maintaining natural timbre.
Imaging A
Excellent imaging: precise and stable placement. Instruments occupy specific points in space with tangible positions.
Gaming A-
Good fundamental spatial awareness for most gaming scenarios. Handles basic positioning well but may lack nuance in complex situations. Bad value-to-cost for gaming purpose - not recommended

FATfreq x Effect Audio: Quantum Reviews

Reviewed by: Jaytiss

Jaytiss 7.8 Reviewer Score
B+ Tuning
B Tech
I don't want to like, but I love.

Jaytiss original ranking

Jaytiss Youtube Channel
Mids: C+ Treble: B Dynamics: S Soundstage: A-
YouTube video thumbnail

Reviewed by: Jays Audio

Jays Audio 7 Reviewer Score
A- Tuning
S Tech
Bright and full sound, very detailed, sparkly, airy, tons of treble extenstion... but it gets fatiguing with the stock filters. Blue filter has the best balance but still doesn't scale too well. 300 mesh filter goes hard tho - check modded ranking at bottom.

Jays Audio original ranking

Jays Audio Youtube Channel

Reviewed by: Shuwa-T

Shuwa-T 5.7 Reviewer Score
B- Tuning
B- Tech
I struggle with this, perhaps it was insertion depth but that unconventional iem shape should never have been greenlit Average bass, thin midrange, unbearably sibilant treble

Shuwa-T original ranking

Shuwa-T Website

Bass: A Mids: C+ Treble: C- Soundstage: B Details: B Imaging: B-

Letshuoer EJ07 Reviews

Reviewed by: Jays Audio

Jays Audio 8.5 Reviewer Score
S+ Tuning
A+ Tech
TOTL mids. Most 3D and holographic staging yet. Imaging, separation, layering, and staging are all S level - only thing that's holding it back is the darker treble which can lead to softer notes vs, Diva, for example.The most immersive set for rock, alternative, ballads, and classical. An 07M that scales better with better staging. Great clarity and seperation. Treble is pushed back but still clear and evident in tracks (at higher volumes). Could use more low-end (but not an issue) and sharper note transients. Takes you on a journey. Needs to be listened to at high volume for the full effect.

Jays Audio original ranking

Jays Audio Youtube Channel

Reviewed by: Audionotions

Audionotions 8 Reviewer Score
Very engaging and very natural sounding. Decent technicalities. Instruments sound correct. Staging and imaging very good for an IEM. Very enjoyable. Leans dark and maybe a bit lacking in treble extension but also very easy to just enjoy the music which, at the end of the day, is what we even want from IEMs right? Previously Owned

Audionotions original ranking

Website (Audionotions)

Reviewed by: Shuwa-T

Shuwa-T 7.4 Reviewer Score
A- Tuning
A Tech
Comment: My favourite of the EJ lineup. Vocal centric with great clarity and thick note weights in the midrange Bass may be too polite

Shuwa-T original ranking

Shuwa-T Website

Bass: A- Mids: A+ Treble: B+ Soundstage: A Details: A+ Imaging: A

FATfreq x Effect Audio: Quantum User Reviews

Example User Posted on ...
0.0

"This is an example review"

Pros
  • Example pro 1
  • Example pro 2
Cons
  • Example con 1
  • Example con 2
No User-Reviews Yet

Share your experience and build your personal ranking list.

You need to be signed in to write your own review

Letshuoer EJ07 User Reviews

Example User Posted on ...
0.0

"This is an example review"

Pros
  • Example pro 1
  • Example pro 2
Cons
  • Example con 1
  • Example con 2
No User-Reviews Yet

Share your experience and build your personal ranking list.

You need to be signed in to write your own review

Find your next IEM:

IEM Finder Quiz

new
Use this quiz and answer a few questions to get your individual IEM recommendation list
(1/2) How much are you willing to spend on the IEM?
(2/2) Which sound characteristics are particularly important to you?

Recommended Pages

Page
Available IEMs (in stock)
Best IEMs under $50
Best IEMs under $100
Best IEMs under $200
Best IEMs under $600
Best IEMs under $1000
Best bass quality IEMs
Best dynamic range IEMs
IEMs with widest soundstage
IEMs with most details
IEMs with best imaging
Best value IEMs from below $50
Best value IEMs from $50 - $100
Best value IEMs from $100 - $200
Best value IEMs from $200 - $400
Best value IEMs from $400 - $600
Best value IEMs from $600 - $1,000

Footer