Description
Enhanced Cable Structure: Shielded, Oxidation-Resistant, and Luxuriously Soft
The 2DualCPS cable is ingeniously named for its dual-twisted, Teflon-coated conductors, encased in a medical-grade TPU sheath. This intricate design offers a triple advantage: firstly, shielding against both internal and external electrical interference; secondly, preventing oxidation of conductors; and thirdly, providing a comfortable, aesthetically pleasing, and soft user experience.
Concentric Stranded Conductors: Precision in Signal Transmission
Crafted with concentric stranded conductors, the cable's central core wire is enveloped by helically laid wires, ensuring a regular pattern that eliminates signal loss. Coated with Teflon, these conductors undergo a swift manufacturing process, limiting oxidation to less than 4 days.
C - Concentric-Lay Structure: Stability in Signal Transmission
The Concentric-Lay Structure is employed to counteract the negative magnetic effects. In contrast to irregular patterns found in ordinary structures, the Concentric-Lay conductors have a circular cross-section, distributing signals evenly. This design ensures stability in high-frequency response, even under external forces like bending, as the internal structure remains organized.
P - Purified Process: Purity Throughout the Manufacturing Process
Impurities are systematically removed through a meticulous purifying process integrated into every stage of manufacturing, ensuring the 2DualCPS maintains exceptional purity. The wire drawing process occurs in a protective liquid to prevent oxidation.
S - Silver: Achieving Balanced Sound
Utilizing the OCC method, with impurities less than 10PPM, the 2DualCPS incorporates silver for optimal electrical conductivity. Thanks to a smooth surface achieved through natural diamond-made peel holes, the sound produced is balanced, eliminating the traditionally associated excessive highs.
Unrivaled Sound Quality in Three Aspects
Clear - Supreme Sound Resolution: The 2DualCPS offers unparalleled clarity, projecting even the smallest musical details, setting a new standard for sonic precision.
Sound Stage - Expansive and Interference-Free: The cable's unique structure creates a vast sound stage with a clear background, minimizing interference between vocals and instruments.
Steady - Powerful and Balanced Bass: Recognizing bass as the foundation of sound, the 2DualCPS ensures a steady and lively bass response, complementing a diverse selection of connectors.
Connectors: Craftsmanship at Its Best
The connectors, sourced from the OEAudio supply chain, boast 3U Gold Plating for superior conductivity. Using double injection molding technology, these connectors surpass hand-soldered alternatives in quality. The earhook-free design, paired with a soft plastic slider, allows versatile connections to various earphones.
Customized Oyaide Solder: Enhancing Detail in Sound Performance
Employing customized Oyaide solder with 4.7% silver content, the 2DualCPS undergoes low-temperature soldering for precise sound performance down to the minutest detail.
A) The chain (all using the OE 2 Dual Silver CPS cable)
1. Apple music / Spotify from Android phone to Earmen Colibri to Penon Voltage / Dita Project M.
2. Apple music / Spotify from Android phone to Chord Mojo 2 to Penon Voltage / Dita Project M.
3. FLAC / AAC / 320 kbps MP3 / 128 kbps MP3 music from my computer to Chord Mojo 2 to Penon Voltage / Dita Project M.
4. My DAP Onkyo DP X1 to Penon Voltage / Dita Project M (mostly FLAC / 320 kbps music files)
B) The music
1. Bollywood (from the 40s till date)
2. Malayalam songs (from the 60s till date)
3. Tamil songs (from late 80s till date)
4. Telugu songs (from the 2000s till date)
5. English (Soul, Jazz, Reggae, Motown, Rock, Hard Rock, Metal, Pop from the 60s to the 000s, some specific artists from the current era like Adele, Billy Eilish, Norah Jones, Dua Lipa, Beyonce, Ed Sheeran, Bruno Mars, Llorde etc.)
6. OSTs from movies and anime.
7. Instrumentals (mostly jazz and jazz fusions).
As clear from the above list, most of my music is mid focused. I am not a bass head, though I appreciate bass if the music calls for it. I prefer a detailed, neutral and natural sound signature.
I had purchased Penon Voltage recently. This IEM has a 2 DDs / 4 BAs and 4 ESTs configuration. The stock cable of this IEM is Obsidian from Penon itself which has a higher cost than OE. It was immediately clear that the stock cable is inhibiting the performance of the IEM since the resolution and the imaging while good, were not on par for the driver configuration on offer. I had a feeling that the IEM needed a cable which had silver (not silver plating) in it. I picked this cable which is a 4 wire purified silver cable. Lo behold! the technicalities of the Voltage just jumped 2 levels - resolution, imaging, separation and the layering improved very noticeably. I had my doubts as to whether the silver will affect the bass of the IEM as silver wires typically tend to increase the speed and make the upper mids and treble sharper making the IEM brighter. However to my ears, the quantity of bass of the IEM remained the same (compared to the stock cable) while the note definition for the lower ranges became more defined. The treble became more etched without any kind of sibilance. The note weight is very good throughout the range and sounds very natural.
Comparisions:
Penon Obsidian cable (priced $150 - roughly INR 14,000/-): Superior to this cable in all the aspects be it Lows, Mids, Highs and technicalities. Bass quantity roughly the same for both, but basslines noticeably more cleaner and defined with OE.
EA Cadmus 8 wire (priced INR 24,000/-): Technicalities: Better detail retrieval, separation and layering on OE than the Cadmus. Cadmus has a wider soundstage. Better treble extension on the OE. Both Cadmus and OE are very good in the mid range with different strengths. OE is more clearer and detailed in the midrange (my requirement for Voltage) while sounding natural. Cadmus has a thicker note weight in the midrange which sounds really good for vocals. Cadmus has more bass quantity with good definition in the bass lines. However OE has noticeably more tighter and defined bass while losing out to the Cadmus on the quantity of the bass slightly (mainly in the mid bass).
This cable is very comfortable as it is thin by the cable standards these days. You forget that there is a cable within a few seconds of wearing this. Honestly I find it difficult to correlate the quality of the sound provided by this cable to its unassuming appearance. This has to be one of the best deals when it comes to cables.
Who would I recommend it to: 1. To those who are looking for added technicalities and treble extension without sibilance 2. Those who have warm IEMs and want more resolution and bass definition.
Thanks, Pritam for the prompt delivery. Always a pleasure dealing with you.

Description
Enhanced Cable Structure: Shielded, Oxidation-Resistant, and Luxuriously Soft
The 2DualCPS cable is ingeniously named for its dual-twisted, Teflon-coated conductors, encased in a medical-grade TPU sheath. This intricate design offers a triple advantage: firstly, shielding against both internal and external electrical interference; secondly, preventing oxidation of conductors; and thirdly, providing a comfortable, aesthetically pleasing, and soft user experience.
Concentric Stranded Conductors: Precision in Signal Transmission
Crafted with concentric stranded conductors, the cable's central core wire is enveloped by helically laid wires, ensuring a regular pattern that eliminates signal loss. Coated with Teflon, these conductors undergo a swift manufacturing process, limiting oxidation to less than 4 days.
C - Concentric-Lay Structure: Stability in Signal Transmission
The Concentric-Lay Structure is employed to counteract the negative magnetic effects. In contrast to irregular patterns found in ordinary structures, the Concentric-Lay conductors have a circular cross-section, distributing signals evenly. This design ensures stability in high-frequency response, even under external forces like bending, as the internal structure remains organized.
P - Purified Process: Purity Throughout the Manufacturing Process
Impurities are systematically removed through a meticulous purifying process integrated into every stage of manufacturing, ensuring the 2DualCPS maintains exceptional purity. The wire drawing process occurs in a protective liquid to prevent oxidation.
S - Silver: Achieving Balanced Sound
Utilizing the OCC method, with impurities less than 10PPM, the 2DualCPS incorporates silver for optimal electrical conductivity. Thanks to a smooth surface achieved through natural diamond-made peel holes, the sound produced is balanced, eliminating the traditionally associated excessive highs.
Unrivaled Sound Quality in Three Aspects
Clear - Supreme Sound Resolution: The 2DualCPS offers unparalleled clarity, projecting even the smallest musical details, setting a new standard for sonic precision.
Sound Stage - Expansive and Interference-Free: The cable's unique structure creates a vast sound stage with a clear background, minimizing interference between vocals and instruments.
Steady - Powerful and Balanced Bass: Recognizing bass as the foundation of sound, the 2DualCPS ensures a steady and lively bass response, complementing a diverse selection of connectors.
Connectors: Craftsmanship at Its Best
The connectors, sourced from the OEAudio supply chain, boast 3U Gold Plating for superior conductivity. Using double injection molding technology, these connectors surpass hand-soldered alternatives in quality. The earhook-free design, paired with a soft plastic slider, allows versatile connections to various earphones.
Customized Oyaide Solder: Enhancing Detail in Sound Performance
Employing customized Oyaide solder with 4.7% silver content, the 2DualCPS undergoes low-temperature soldering for precise sound performance down to the minutest detail.
A) The chain (all using the OE 2 Dual Silver CPS cable)
1. Apple music / Spotify from Android phone to Earmen Colibri to Penon Voltage / Dita Project M.
2. Apple music / Spotify from Android phone to Chord Mojo 2 to Penon Voltage / Dita Project M.
3. FLAC / AAC / 320 kbps MP3 / 128 kbps MP3 music from my computer to Chord Mojo 2 to Penon Voltage / Dita Project M.
4. My DAP Onkyo DP X1 to Penon Voltage / Dita Project M (mostly FLAC / 320 kbps music files)
B) The music
1. Bollywood (from the 40s till date)
2. Malayalam songs (from the 60s till date)
3. Tamil songs (from late 80s till date)
4. Telugu songs (from the 2000s till date)
5. English (Soul, Jazz, Reggae, Motown, Rock, Hard Rock, Metal, Pop from the 60s to the 000s, some specific artists from the current era like Adele, Billy Eilish, Norah Jones, Dua Lipa, Beyonce, Ed Sheeran, Bruno Mars, Llorde etc.)
6. OSTs from movies and anime.
7. Instrumentals (mostly jazz and jazz fusions).
As clear from the above list, most of my music is mid focused. I am not a bass head, though I appreciate bass if the music calls for it. I prefer a detailed, neutral and natural sound signature.
I had purchased Penon Voltage recently. This IEM has a 2 DDs / 4 BAs and 4 ESTs configuration. The stock cable of this IEM is Obsidian from Penon itself which has a higher cost than OE. It was immediately clear that the stock cable is inhibiting the performance of the IEM since the resolution and the imaging while good, were not on par for the driver configuration on offer. I had a feeling that the IEM needed a cable which had silver (not silver plating) in it. I picked this cable which is a 4 wire purified silver cable. Lo behold! the technicalities of the Voltage just jumped 2 levels - resolution, imaging, separation and the layering improved very noticeably. I had my doubts as to whether the silver will affect the bass of the IEM as silver wires typically tend to increase the speed and make the upper mids and treble sharper making the IEM brighter. However to my ears, the quantity of bass of the IEM remained the same (compared to the stock cable) while the note definition for the lower ranges became more defined. The treble became more etched without any kind of sibilance. The note weight is very good throughout the range and sounds very natural.
Comparisions:
Penon Obsidian cable (priced $150 - roughly INR 14,000/-): Superior to this cable in all the aspects be it Lows, Mids, Highs and technicalities. Bass quantity roughly the same for both, but basslines noticeably more cleaner and defined with OE.
EA Cadmus 8 wire (priced INR 24,000/-): Technicalities: Better detail retrieval, separation and layering on OE than the Cadmus. Cadmus has a wider soundstage. Better treble extension on the OE. Both Cadmus and OE are very good in the mid range with different strengths. OE is more clearer and detailed in the midrange (my requirement for Voltage) while sounding natural. Cadmus has a thicker note weight in the midrange which sounds really good for vocals. Cadmus has more bass quantity with good definition in the bass lines. However OE has noticeably more tighter and defined bass while losing out to the Cadmus on the quantity of the bass slightly (mainly in the mid bass).
This cable is very comfortable as it is thin by the cable standards these days. You forget that there is a cable within a few seconds of wearing this. Honestly I find it difficult to correlate the quality of the sound provided by this cable to its unassuming appearance. This has to be one of the best deals when it comes to cables.
Who would I recommend it to: 1. To those who are looking for added technicalities and treble extension without sibilance 2. Those who have warm IEMs and want more resolution and bass definition.
Thanks, Pritam for the prompt delivery. Always a pleasure dealing with you.
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Let customers speak for us
from 4874 reviewsKZ Castor Harman Target Version – Review
Design & Comfort
Lightweight, durable, and comfortable with a detachable cable. The in-line mic is useful for calls and gaming.
Sound Quality
Bass: Punchy and deep without overpowering.
Mids: Clear vocals and instruments.
Highs: Crisp but slightly bright.
Soundstage: Decent separation for immersive listening.
Pros:
✔ Enhanced bass
✔ Balanced tuning
✔ Comfortable & durable
✔ Affordable
Verdict:
A budget-friendly IEM with great sound and comfort, though the mic is just decent.
I'm using first time DAC most of the people refer this varient, difference between 3.5mm jac and this DAC D07 is absolutely awesome, so much details in hearing a song and music, loved it ❤️❤️❤️❤️👌👌👌🙏🙏🙏
Solid pouch
With good space
The product is worth the money
And I personally love the your faster delivery service
I got the product just in with 30 Hrs

I like Moondrop ECHO-A Dac. It is not powerful Dac but it produces quality sound .

Great for listening to all music genres, gaming on PC or consoles or pretty much any thing you'd like to do with a pair of earphones.
Superb packaging 👍🏻 delivered what was promised.

I recently got my hands on the ROSESELSA AURORA Ultra IEM, and I must say, it has exceeded my expectations! For under 2,000 INR, this IEM delivers exceptional value and performance that can easily compete with many pricier models out there.
What really stands out to me is its versatility. The AURORA shines across all genres, whether I'm diving into classical symphonies, jamming to rock anthems, or vibing with electronic beats. The sound quality is simply fantastic, making every listening session a joy.
A cherry on top is the comfort factor—these IEMs are small and lightweight, so they don’t cause any discomfort during long listening sessions. If you’ve had issues with larger IEM shells in the past, you’ll find the AURORA to be a perfect fit. Plus, the cable quality is impressive for the price, adding to the overall value of this product.
To unlock the full potential of these IEMs, I highly recommend investing in an external dongle. I personally use the Kiwi Ear Allegro Mini DAC, and it has truly elevated my audio experience. If you're on the hunt for a budget-friendly IEM that doesn’t compromise on sound quality, the ROSESELSA AURORA is a must-try!
I also want to take a moment to thank the audio store for their outstanding service. My order arrived in perfect condition, and their customer support team was incredibly friendly and helpful. Overall, this has been a wonderful experience, and I’m absolutely thrilled with my purchase!
As a v16 owner this is a worthy upgrade .
Fit :
The iem is designed aesthetically that it fits like custom made
Sound impressions :
Treble is perfectly done with being sibilant, Mids sounds very organic and clear, Bass is the best part here it's a step up from their previous flagship v16.
Staging is better and so is the resolution, A total flagship level iem which punches above the price tag
Thanks to Pritam for his exceptional customer service and deal .
Definitely recommended

Have a great features and I am very happy after buying this m71 thanks audio store 🙏🙏

Time Spent with this DAP is more than 50 days, used many IEMs from Budget range to high end.
OBSERVATION & EXPERIENCE SO FAR.
- Wide soundstage, it's creating a spacious listening experience.
- Smooth and refined sound, with good bass & trebles. I liked it.
- little high Volume doesn't hurt ears because of spaciousness which this DAP creates.
- Main unique point is Vocals & Instruments separation, it's best.
- So far, I noticed Battery back up is really good. Will check it over time and provide feedback.
- Does not get warm that too after using for hours.
- Best software & Shanling Music app, it's very fast ( I use 1TB fully loaded Micro SD card.)
Please Note - Little more care is needed while handling as it has Glass tubes. Again it's unique offering & tubes makes music more enjoyable.
CONS-
1. Charging time ( it will get solve by software updates in future, Brand has co
nfirmed it in their post)
2. Only one colour option is available from Brand.
3. Some settings currently not present, Brand may add in future updates ( DSD gain Compensation, PEQ, MSEB, Night light short cut in quick pannel)
CONCLUSION-
a. Highly recommend those who want detailed & immersive experience.
b. THREE IN ONE- One DAP but three modes, all three sounds differently. One mode Transistor (without Tubes) and two Tube modes (Triode & Ultra- linear).

Sterdy & beautiful cable. I am using it with Hidiz MP145 Planner Magnetic IEM. It add details to music over stock cable. Makes all aspect of sound quality better.

I am writing review after One month regularly uses with my two DAP - Shanling M8t, Hiby R4.
POSITIVES-
1. Best Soundstage
2. Balanced sound
3. Musical & Makes music more enjoyable to ears.
4. No fatigue despite of metal construct.
5. Weight distribution is really good.
6. Largest Magnetic planner in the Category.
7. Details & instruments separation at best.
CONS-
1. Small ears may face challenge. Plz contact team ATS before purchase. Normal ear size, No issues with fit & long usage.
2. Stock cable is good but doesn't suit this IEM.
I am using this with Divinus Auram cable, which goes really well with this by appearance as well as by performance.
CONCLUSION-
1. Very very happy with the purchase. It's my main IEM in daily music journey.
2. My suggestion is Music enthusiast must have atleast one 'Planner Magnetic IEM', believe me I found that the the songs which I am listening since decades are sounding differently with some more details with this IEM.

The KZ Castor is an excellent choice for budget audiophiles. It delivers superb sound quality that rivals much more expensive headphones, with clear highs, rich mids, and deep bass. The build quality is solid, offering both durability and comfort for long listening sessions. At its price, it’s a fantastic value, outperforming many premium options. Highly recommended!

i think it's a great choice for someone who's just starting with the "iem" audiophile thing and it sounds good pretty good for the price range, it's sound clear and crisp, the bass is a little on the lower side but nonetheless great product if you are just starting, oh and yes the delivery was fast got it in a day.