BQEYZ Summer IEM Review








BQEYZ Summer IEM Review 



BQEYZ is a Chinese brand that is well known in the Chi-Fi scene with their affordable and pretty well tuned In-Ear Monitors.

The BQEYZ Summer is the latest IEM of the company and comes with a “Triple Hybrid Driver” configuration same like the Spring 1 and Spring 2. The Hybrid Driver setup is a combination of 1x Balanced Armature Driver (Second Generation) + 1x 5-Layer Piezoelectric Unit + 1x Dynamic Driver with a 13mm diameter PU+LCP diaphragm.




I would like to thank BQEYZ for providing me this sample for review purposes. I am not affiliated with BQEYZ beyond this review and these words reflect my true and unaltered opinions about the product.




Price & Availability:

The actual price of the BQEYZ Summer IEM is about 129,00 USD. More information’s can be found under the links below;





Package and Accessories:

The BQEYZ Spring 2 came in a rectangular black with the BQEYZ brand logo in silver color on the top. This box has a cardboard sleeve with some product related bandings on the top and some details at the rear side.


Inside the box are the following contents/accessories; 

  • 1 pair x BQEYZ Summer In-Ear Monitor
  • 1 pcs x 8core Detachable Cable with 0.78mm 2-Pin Connector
  • 3 pairs x Grey Silicone Ear Tips (S, M & L)
  • 3 pairs x Ice Blue Silicone Ear Tips (S, M & L)
  • 1 pcs x Cleaning Tool
  • 1 pcs x PU Protective Case with Zipper
  • 1 pcs x Print Material (Quick Start Guide, Warranty Card, etc.)





Design, Fit and Build Quality:

The BQEYZ Summer is a very lightweight (only 4.2grams) and comfortable In-Ear Monitor that has a monitor shell made of skin-friendly resin that is available in 2 different color options, which are light blue one and the one that is called night sky like my review unit.

The overall build quality of the monitors is pretty good but doesn’t look that impressive and solid like the Spring 1 and Spring to which had an all metal monitor shell. The faceplate of each monitor has a wave like pattern that looks quite stylish.

Inner surface of the each monitor is a slightly angled sound nozzle in silver metallic color, 3 vents and the L (Left) & R (Right) markings.

The rear side features the BQEYZ (left earpiece) and Summer (right earpiece) brandings in white color.

The sound nozzle has a metal filter with many small holes on the top to prevent the insertion of particles such like dust or earwax.

On the top of the monitor housing is the 0.78mm diameter 2-Pin female connector that offers a fairly tight connection.

The BQEYZ Summer has an 8 cores of Silver Plated Single Crystal Copper wire cable that is an remarkable upgrade over the 4 core Single Crystal Copper cables that came with the Spring 1 and Spring 2.

The cable has a nice braided design that has soft transparent TPU isolation.

The cable has 0.78mmdiamter 2-Pin male connectors that do fit pretty tight to the female connectors located on the monitors. The connectors do have metal housings in sliver color and each connector has L (Left) & R (Right) markings.

This cable features also a stylish metal y-splitter with BQEYZ branding and a chin slider in the silver color, same like the connector housings.

The cable of the BQEYZ Spring 2 can be ordered with 3 different headphone plugs, which are 3.5mm (TRS), 2.5mm (TRRS) balanced and 4.4mm (TRRRS) balanced variants. The metal housing is also in silver color and has a strait profile with the BQEYZ brand logo on the top. This headphone jack features a plastic train relief for extra durability.





Some Technical Specifications:
  • Model              : Summer
  • Driver              : 1 x BA + 1 x 5-Layer Piezoelectric Unit + 1x 13mm Dynamic Driver
  • Freq. range     : 7 Hz – 40 kHz
  • Sensitivity       : 107dB
  • Impedance      : 32Ω
  • Connector       : 0.78mm 2-Pin
  • Cable Specs    : 8 Core Silver Plated Single Crystal Copper Wire
  • Cable length   : 1.2m





The BQEYZ Summer is a quite efficient IEM thanks to its pretty low impedance of 32ohm and sensitivity about 107dB. Sources like Smartphone’s or Tablets with a relative weak amplification are able to driver the Summer to pretty loud volume level.



Equipment’s used for this review:
  • IEM’s              : BQEYZ Summer, Shuoer TAPE Pro, BQEYZ Spring 2
  • DAP&DAC’s   : FiiO M11 PRO, iBasso DC03, Hidizs AP80 Pro





Albums & tracks used for this review:
  • Schiller – Love “by Rebeca Ferguson” (Spotify)
  • Bro Safari, UFO! – Drama (Deezer HiFi)
  • Really Slow Motion – Deadwood (Deezer HiFi)
  • Lorde – Royal (Flac 24bit/48kHz)
  • Toutant – Rebirth (Deezer HiFi)
  • Tom Player – Resonace Theory “Album” (Deezer HiFi)
  • Photek – The Hidden Camera (Spotify)
  • Sarah McLachlan – Angel (Flac 24bit/48kHz)
  • Dionne Warwick – Walk on By (Flac 24bit/96kHz)
  • Edith Piaf – Non Je Ne Regrette Rien (Flac 16bit/44.1kHz)
  • Aretha Franklin – I Say a Little Prayer (Flac 24bit/96kHz)
  • Diana Krall – So Wonderful (DSF)
  • First Aid Kit – My Silver Lining (Flac 16bit/44.1kHz)
  • Sertap Erener – Aşk (Flac 16bit/44.1kHz)
  • Barry White – Just The Way You Are (Flac 24bit/48kHz)
  • Isaac Hayes – Walk On By (Flac 16bit/44.1kHz)
  • David Bowie – Heroes (Flac 24bit/48kHz)
  • Sting – Englishman in New York – (Flac 24bit/48kHz)
  • Eric Clapton – Wonderful Tonight (Flac 24bit/96kHz)
  • Elton John – Rocket Man (Deezer HiFi)
  • B.B. King – Riding With The King (Flac 24bit/96kHz)
  • U2 – Sunday Bloody Sunday (Flac 16bit/44.1kHz)
  • Charly Antolini – Duwadjuwandadu (Flac 24bit/192kHz)
  • Chopin – Nocturn No. 20 In C-Sharp Minor (Flac 16bit/44.1kHz)
  • Fazıl Say – Nazım Oratoryosu (Live) (Flac 16bit/44.1kHz)
  • Vivaldi – Le QuarttroStagioni “The Four Season” (Deezer HiFi)
  • Otto Liebert& Luna Negra – The River (Flac 24bit/192kHz)
  • Armin Van Buuren – Vini Vici (Flac 16bit/44.1kHz)
  • No Doubt – Hella Gut (Flac 16bit/44.1kHz)
  • Haken – Prosthetic (Flac 16bit/44.1kHz)
  • Lunatic Soul – The Passage (Flac 16bit/44.1kHz)
  • Metallica – Sad but True (Flac 24bit/96kHz)
  • Opeth – Windowpane (Flac 16bit/44.1kHz)
  • Megadeth – Sweating Bullets (Tidal Hi-Fi)
  • Rush’s – Leave That Thing Alone (Flac 16bit/44.1kHz)
  • Slayer – Angel of Death (Spotify)s
  • Liquid Tension Experiment 2 – Acid Rain (Spotify)
  • Yosi Horikawa – Bubbles (Spotify)






The Sound:

The BQEYZ Summer shows a warmer tonality compared to the Spring 1 & Spring 2 that have a brighter and close to neutral presentation that explains the description Summer. The BQEYZ Summer has a full bodied bass response with focal point in the midbass area. The midrange on the other hand is sweet and full bodied, while treble tuning is in general soft and controlled.

The BQEYZ Summer review was written after a burn-in process of about 150 Hours since I have noticed fairly audible improvements and changes. I have used the stock Cable and Stock Silicone ear tips that are part of the standard packaging.



The BQEYZ Summer offers a subbass tuning that shows a good sense of depth and intensity, which is sufficient for a wide variety of music genres. The subbass is therefore pretty balanced and controlled thanks to the 13mm dynamic driver. The subbass region shows in general an average level of extension and adds the Summer a nicely done soft and pretty warmish tonality.

The midbass region of the BQEYZ Summer is more highlighted compared to the subbass area and shows a moderate level of intensity and depth. It is punchy and powerful when called upon, however the impact is not on a bass head level.

Instruments like snare and cross drums are fairly pronounced, bassy and fast, while bass guitars do have a warm tonality and full bodied.

The general bass speed and tightness of the BQEYZ Summer is on an moderate level and sounds from time to time a bit loose. The 13mm diameter dynamic driver is able to produce pretty energetic and dynamic presentation, which makes the Summer quite successful with music genres like EDM, Trance or Pop music.



The BQEYZ Summer is an In-Ear Monitor with a warm full bodied midrange tonality and presentation. It offers a moderate sense of clarity and airiness, along with a good level of detail retrieval and musicality in this area. The lower midrange adds the overall midrange presentation depth and body, while the upper midrange sounds quite controlled yet bright due to a slightly peak near the 4 kHz region.

The Summer is a successful IEM with both Male and Female vocals thanks to the lower midrange depth and intensity that adds male vocals like Barry White, Sting or David Bowie a good sense of body and weight, while the upper midrange is responsible for the transparency and detail retrieval of female vocals when I do listen to Sarah McLachlan, Edith Piaf or Aretha Franklin.

The BQEYZ Summer shows a pretty warm, full bodied and musical instrument tonality when I do listen to string, woodwind or brass instruments. Instruments like a piano are reproduced with a slightly bright tonality, while acoustic guitars bassy, pretty lush and sweet in tonality. Violins on the other hand are fairly smooth, warm and emotional without to show any unwanted over sharpness or harshness.


Upper Midrange & Treble:

The BQEYZ Summer shows a good upper midrange emphasis, which has a close to natural tonality. The upper midrange sounds in general quite transparent and detailed, while the transitions from this area towards the lower treble region are quite controlled, especially when instruments do play with high level of distortion.

The treble range of the BQEYZ Summer is energetic and pretty fast thanks to the combination of Piezoelectric Unit and Balanced Armature Driver. The lower treble range of the Summer is less pronounced compared to the upper treble area and shows a noticeable roll-off around the 5kHz region. The lower treble region is less detailed compared to the upper treble area and offers a moderate sense of clarity and definition, while the extension is in general a bit short.

The upper treble region is the focal point of the Summer, which is able to produce a good sense of airiness and sparkle while listen to instrument like hi-hats and cymbals in trash metal. The upper treble region of the BQEY Summer shows a very audible peak around the 8 kHz region which is a popular tuning these days.

The general treble extension, resolution and control of the Summer is pretty good for an IEM at this price range thanks to the well tuned Balanced Armature Driver and 5-Layer Piezoelectric Unit that area also quite successful in terms of control in this area.


Soundstage & Imaging:

The BQEYZ Summer offers a sufficient performance for a IEM in this price range when it comes to the separation and placement of instruments and vocals. The soundstage of the Summer shows a good sense of wideness, while the depth and height of the stage is on an average level.




Some Sound Related Comparisons:


BQEYZ Summer versus BQEYZ Spring 2:

The first audible difference between the Summer and the Spring2 are the tonality, which is warmer and fuller when I do listen to the Summer. The subbass region of the Summer shows more depth and rumble compared to the Spring 2, which has a more linear response with a better sense of control in this area. The same situation exists in the midbass region where the Summer has more intensity/volume and impact. However, the Spring 2 sounds a bit more controlled and has the upper hand in terms of midbass speed.

The midrange of the BQYEZ Summer has a warmer tonality and a softer, more musical presentation, compared to the BQEYZ Spring 2, which offers a slightly more neutral and bright character. The Spring 2 offers a betters sense of clarity, detail retrieval and airiness, especially when I do listen to female vocals or instruments such like a guitar, violin or piano. The Summer has the slightly edge when I so listen to male vocals and instruments like a viola or contrabass due to the lower midrange tuning that shows more quantity, depth and body.

The treble range of the BQEYZ Spring2 shows a slightly more neutral tonality and sounds also more crisp and detailed compared to the BQEYZ Summer, which has a smoother and thicker tonality in this area. The Summer shows a slightly boost in the upper treble area to avoid a dull presentation in this area.

The BQEZY Spirng2 has the upper hand in terms of both soundstage depth and wideness.



BQEYZ Summer versus SHUOER Tape Pro:

The BQEYZ Summer shows a warmer tonality and fuller presentation compared to the SHUOER Tape Pro. The bass of the Summer shows in general more body, depth and a slightly better sense of extension.

The subbass region of the Tape Pro has less depth and rumble, however it has the slightly edge when it comes to the speed and control in this region. The midbass region of the BQEYZ Summer has more body and is also more impactful compared to the SHUOER Tape Pro.

The midrange of the BQEYZ Summer has a warmer tonality with better sense of body/fullness compared to the SHUOER Tape Pro, which offers slightly better detail retrieval and clarity in this area. The Summer has the upper hand in terms of male vocal performance, while the Tape Pro has an slightly advantage in terms of detail retrieval and extension of female voices.

The SHUOER Tape Pro has a stronger upper midrange emphasis that sounds a bit too bright and tends to sibilance. The BQEYZ Summer offers a smoother, more rounded upper midrange tuning with more controlled transitions towards the lower treble area. The Summer is the IEM with the better upper treble extension and resolution, while the Tape Pro shows an audible roll-off in this area.

The BQEYZ Summer has the upper hand in terms soundstage wideness and airiness, while the SHUOER Tape Pro has a slightly advantage when it comes to the depth of the stage.




BQEYZ is a company that offers good sounding products with a solid build quality, which are available for a quite reasonable pricing. The Summer is a warm, full bodied and entertaining sounding IEM with a very comfortable Monitor shape that comes with a great looking zipper case and pretty good stock cable, which offers again a high value for your money.



Pros & Cons:
  • + Warm & Full Bodied Presentation
  • + Bass Performance (Depth, Control)
  • + Musical & Emotional Instrument and Vocal Presentation
  • + Energetic yet Controlled Treble Tuning
  • + Good Stock Cable
  • + Price to performance ratio
  • – Warm & Thick Midrange tuning may not for everyone
  • – Not the Most balanced sound tuning
  • – The monitor shell doesn’t feels as premium compared to previous products


Thank you for the Read!








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4 Responses

  1. Abir says:

    Excellent review as always 👍
    Is campfire honeydew the ideal option for bass, soundstage & instrument seperation or are there better options under 250$ ??

    • Gökhan AYDIN says:

      The CCZ Plume is another IEM with great bass response, while the soundstage is a bit more closed-in. Cheers

  2. Abir says:

    Thanks for your suggestion 🙂

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