Softears RSV-MKII

5BA 4-Way Crossover In-Ear Monitors

$699.00 USD

ForCritical listening

Sound4-Way CrossoverFour tubes, five drivers
SoundDual Bass TubesDedicated low-end path
FitPressure ReliefPassive design
ShellForged ShellHigh-strength, CNC-machined
TechnologyMulti-driver / single technologyBalanced Armature
SoundBalanced soundAlso Basshead
Preorder periodPre-order
  • 7 days. Changes subjected to the manufacturer's updates

Shipping time estimate. Pre-order items are non-cancellable and non-refundable.

Pre-order details

Overview

The details behind Softears RSV-MKII.

A Classic, Reimagined, Fine-Tuned Energy Distribution

RSV-MKII builds upon the acclaimed foundation of the original RSV without altering the driver configuration, instead refining sound through precise impedance adjustments across low, mid, and high frequencies. This optimization carefully redistributes energy, creating deeper and more powerful bass, improved accuracy and clarity in the midrange, and a smoother, more refined treble. It represents not just a simple refresh but a genuine upgrade to Softears’ classic tuning.

Upgraded Cross-Over Component Architecture

The RSV-MKII adopts Softears’ exclusive LRC tuning network, featuring a 4-tube, 4-way crossover with seven precision components for enhanced tonal balance and accuracy. Its upgraded dual-tube bass design eliminates the metallic, tinny character often associated with BA drivers, improving acoustic consistency across the sound path and achieving greater coherence throughout the frequency spectrum.

Low-Frequency Drivers, Long Stroke and Powerful Impact

At the foundation of the low end are dual Knowles CI22955 balanced armature drivers—the largest BA models in mainstream use. Known as “living fossils” in the industry since their introduction in 1982, they feature a long-stroke diaphragm and a central guiding pin that minimizes vibration splitting, enabling powerful bass with strong atmospheric presence.

Midrange Driver with Delicate Vocals and Precise Imaging

For the midrange, the improved ED driver, first launched in 1988, delivers Softears’ signature vocal texture with smooth cohesion, precise imaging, and lifelike tonality that captures emotional detail without graininess. Vocals are reproduced with moderate distance, natural clarity, and unique tonal character that enhances the overall presentation.

High-Frequency Driver with Clear Tone and High Resolution

At the top end, a SWFK composite driver produces clear treble with excellent resolution, reproducing instrument timbre and complex layering naturally while maintaining fatigue-free listening even during extended sessions.

Dual Pressure Relief, Air Pressure Balance Adjustment System

To ensure long-term wearability, the RSV-MKII integrates Softears’ patented passive air-damping system (Patent No: CN202122764459.7) inherited from the flagship RS10, which improves frequency response, enhances bass texture, and relieves pressure during listening. For the first time in Softears’ full-BA models, it also introduces an airflow pressure relief system optimized through acoustic simulation to balance ear canal pressure dynamically, further reducing fatigue. Combined with the precision 3D-printed cavity and anti-slip lip nozzle design, the earphones maintain stable fit, improved sealing, and comfort during long listening sessions.

Craftsmanship Tempered with Aesthetic Totem Design

The RSV-MKII is not only about pure sound but also about refined aesthetics. Each faceplate undergoes multiple stages of precision CNC machining, with a fine anodized matte finish and a distinct V-shaped groove at the center. This groove is inlaid with irregular, multi-layer cast carbon fiber, precisely embedded through CNC engraving to create visual depth and distinctiveness. The upper shell carries the subtle RS emblem, double-anodized to highlight Softears’ design identity, combining durability with understated elegance.

Pure Copper Cable for Cleaner Transmission

The included pure copper cable is made of 6N high-purity stranded oxygen-free copper, using a 19-strand reverse-twist structure to reduce resistance, minimize signal loss, and ensure uniform current distribution. Multiple cryogenic treatments refine the conductor’s crystal structure, lower the noise floor, and enhance micro-detail reproduction, resulting in clearer highs, fuller mids and lows, and a more expansive soundstage. The universal 0.78mm 2-pin connector supports cable replacement, while the nickel-free gold-plated 4.4mm balanced plug, paired with a 4.4-to-3.5mm adapter, guarantees excellent conductivity, corrosion resistance, and compatibility with mainstream devices.

UC and Type-B Eartips for Versatile Listening

Two sets of eartips are included for tuning flexibility. UC eartips offer soft comfort, improved sealing, and a presentation of solid lows with clear highs. Type-B eartips, used as the standard reference in Softears’ R&D tuning process, deliver balanced sound and are especially suited for earphones with slightly larger nozzles.

Technical details

Driver configuration
Multi-driver / single technology
Driver technology
Balanced Armature
Suggested genres
Pop, Rock & Metal, Jazz
Model
RSV-MKII
Sensitivity
122 dB/Vrms @ 1 kHz
Impedance
7 Ω @ 1 kHz (±15%)
THD
< 1% @ 1 kHz
Connector Type
2-pin (0.78 mm)
Series
RS (Reference Sound)
Effective Frequency Response
20 Hz – 20 kHz (IEC60318-4)
Frequency Response Range
15 Hz – 40 kHz (1/4-inch free-field microphone, -3 dB)
Shell
Medical-Grade Resin + CNC Aluminum Alloy + Forged Carbon Fiber
Stock Cable
6N Oxygen-Free Copper, 4.4 mm Balanced Plug + 2-pin (0.78 mm) Connectors, 4.4 mm to 3.5 mm Adapter Cable

Shop with Linsoul

Product care
Ask our support team

Customer reviews

What listeners say about sound, fit and everyday use.

Write a review
  • 5 stars: 3 (100%)
  • 4 stars: 0 (0%)
  • 3 stars: 0 (0%)
  • 2 stars: 0 (0%)
  • 1 star: 0 (0%)
d
d.l.

Perfect clarity! Super immersion! Literally you can hear the weapons firing and feel it but in the same time you can track steps and movement! Expensive but totally worth it!

P
Pfaff (Muskego, US)
My endgame!

I got these on sale from the ddaudio store on aliexpress, not from this website. These iems have the most satisfying kick drums I’ve heard in any iem, and I own over 50. The sub bass is very well textured. Vocals sound excellent and the iem has a great holographic headstage. The treble has a nice relaxing, but not dark sound with air and sparkle. Detail retrieval is about on par with sets like Xenn’s top pro. Rock and metal sound absolutely amazing on this set, which can be honestly hard to do for stuff like old black metal. The fit is excellent, 0 pressure issues or discomfort in an all ba iem is quite an achievement! This gets a 10/10 especially at the price I paid ($540 usd).

C
Carl S. (Bakersfield, US)
Great balance.

Nice bass, and upper mids. Just soundsl lovely. I love this set.

Before you listen.

Fit, connections and your order.

Ask a question

Your order

Which countries do you ship to?

We are generally able to ship to most countries via Express Shipping, and many countries via Standard Shipping. You may clarify this with our team to check whether Standard Shipping is available to your country.

We cannot ship to addresses that are "PO boxes or APO/FPO".

*Note: Generally, we can only do Selected Shipping to India and Russia. We can only do Express Shipping to Africa, Argentina, Hawaii, Kuwait, Mauritius, Montenegro and Sri Lanka, to name a few. 
This may be subjected to changes due to unpredictable issues such as Covid, war, and etc.

How much does shipping cost?

We have two shipping methods - Standard Shipping and Express Shipping.

Standard Shipping is free for most countries, while Express Shipping is 15-35USD depending on your country. If your order is over 270USD, Express Shipping is free*. 

*This applies for most countries. However, large items such as headphones and desktop DAC/AMPs (e.g. HarmonicDyne G200, MUSICIAN MDP-2, and etc.) are excluded.

Shipping fees exclude import taxes or processing fees that may be applicable for your country. Linsoul is not responsible for such fees. Should you refuse to pay the tax/customs fees, shipping fees will still be deducted from the amount paid for thetwo-way freightcharges. The cost of the freight charges may be more than the amount reflected on your order due to tax and other miscellaneous fees.

Some parcels claimed to be “returned to the seller” may be destroyed by the post office or customs officers when buyers refuse to accept their parcels or fail to pay for their taxes.No refundwill be processed for such cases.Standard Shipping via YunExpress is a tax-inclusive option for some countries. However, Linsoul will not be responsible for additional administrative or handling fees charged by your local courier company or customs. Please kindly check this with your local customs.For certain remote areas, there may be additional charges via Express Shipping. We will contact you if there is a need to make additional payments. Please contact us before placing an order, should you have any queries regarding shipping.  

How long does it take to receive the order after it is placed?

For in-stock products, your order will be shipped within 3 working days. You may check with our staff regarding the in-stock status of any products. 

Customized items will take a longer time. Please contact our staff for more information.

On normal non-sale days, once your parcel has been shipped out:

  • For Standard Shipping, it takes about 2-4 weeks for items to be delivered after shipping out. For some countries, it might take up to 2-3 months, depending on your country, its customs and other factors.* The duration for transit is something beyond our control. Linsoul will not be making refunds for such cases. Please consider an upgrade to Express Shipping or keep the waiting time in mind.
  • For Express Shipping, it takes about 3-7 days for items to be delivered after shipping out.

*Note: Timings might be affected due to festive seasons or other unforeseen circumstances

What happens if the parcel has been shipped but not delivered?

First, kindly contact your local courier using the local tracking number. 
If your parcel were to be in transit for at least 3 months, it may have been lost in transit. 
For orders below $50USD, you may either opt for a one-time reshipment of parcel OR a full refund of the amount paid in cash via PayPal/Credit/Debit card. 

For orders above $50USD, we will only process a 50% refund of your order paid in cash via PayPal/Credit/Debit card. Should there be any concern about Standard Shipping, you are encouraged to opt for DHL Express Shipping instead.

Customers are to bear the consequences and fees incurred, if the parcel was undelivered due to any of the following situation:

  • Wrong address or phone number provided by recipient
  • Recipient was uncontactable when courier company contacted
  • Refusal to sign for the package by recipient
  • Lost or damaged parcel because recipient opted for “no-signature delivery”
  • Refusal to pay for the local tax/processing fee by recipient
  • Refusal to provide supporting documents for custom clearance by recipient
Who will pay for the import tax/custom fees

Customers have to bear any form of custom/import/processing fees that are applicable for your parcel.

Should you be unwilling to pay for the fees and reject the delivery of the parcel, you will still have to pay for the shipping cost. Linsoul will only refund the amount of your order after deducting the two-way shipping fees incurred.

What shipping companies do you use?

We collaborate with these courier companies:

  • Standard Shipping: 4PX, UBI, NinjaVan, and Yun Express
  • Express Shipping: DHL Express, FedEx and SF Express
How do I get help for my order?

Cancellation or/and modification of orders can only be done manually via our staff, provided that our Warehouse Team has not processed your order. 
As our Support Team might not be available during non-working days and weekends, please place your order wisely.
Should you really need to cancel or/and modify your order after purchase, please contact us via our support email (Support@Linsoul.com) or website chat. We will help you with the changes if that could be done.

In general, upon receiving your parcel, please confirm the contents of the package and ensure that the package is in good condition before signing for it. All customers are strongly advised to take an unboxing video of their parcel and packaging when opening their parcels and products.

For faulty/missing items, please send an email to support@Linsoul.com for after-sale services. The following details are required. 

  1. Send an email to support@Linsoul.com with an appropriate Subject Title 
  2. Provide your order number and state the issue clearly 
  3. Attach photos and videos to show that your product is faulty/missing. Shipping details on the parcel packaging have to be clearly visible. 



If the photos/videos provided are insufficient to prove the stated issue, we will enquire more. Once the issue has been confirmed, we will arrange for a replacement, partial refund or a full refund (where applicable). For incorrect products, Linsoul reserves all rights in deciding whether you need to return the incorrect item or not. Please kindly contact us via email first. Our team aims to review your email within 3 working days.

For other queries, the fastest way to contact us is via our website or Discord

Linsoul Audio will not be responsible for parcels that have been damaged during the transit process.

Do I get tracking details for my order?

After placing an order, you will receive the order confirmation email. After your order has been shipped out, you will also receive a tracking email. You can track your order via the tracking number online. Should you not have received the emails or face any difficulties tracking your order, please kindly contact us for support.

For more than 1 orders placed under the same account and shipping address, Linsoul will automatically combine the orders and ship them out via one tracking number. Should you have special requests to have the orders shipped separately, please kindly contact us via Discord or our website's chat. We will do our best to help.

How do I cancel my order?

Cancellation or/and modification of orders can only be done manually via our staff, provided that our Warehouse Team has not processed your order. Orders that have been shipped cannot be cancelled and modified.

As our Support Team may not be available during non-working days and weekends, please place your order wisely as support cannot be guaranteed for such requests.

Should you really need to cancel or/and modify your order after purchase, please contact us via our support email (support@Linsoul.com) or website chat. We will help you with the changes if that could be done.

Can I return an opened item?

Request a return within 30 days of delivery while the product is factory-sealed. Contact support for instructions before returning anything.

Full details

Where should I send the product for the return process?

To initiate the return shipment, kindly send an email to support@Linsoul.com within 30 days upon receiving the sealed product(s). The RMA form and details will be provided to you via email.

When must the product be returned after receiving the RMA form and details?

After receiving the return instructions from us via email, kindly arrange the return shipment of the parcel within 5 working days, and update us with the tracking link via email again. Failure to do so will result in a cancellation of the return process.

When will I receive my refund after returning the product?

In most cases, after receiving and inspecting the returned product, your refund will be processed within 5 business days. Refunds may incur a currency exchange loss or transaction fee, depending on your source of payment (e.g. Bank or PayPal). Linsoul will not be responsible for such fees.

What warranty applies?

Most products come with a 1-year warranty; cables and accessories have shorter or separate terms.

Full details

Processing Time

This product is currently in its pre‑order period. Pre‑orders apply to items not yet in stock, and shipping will begin once they arrive. Processing times are estimates only.

Pre-order Period:

  • 7 days. Changes subjected to the manufacturer's updates

Note:

  • No cancellation of orders once ordered.
  • All orders to be shipped out sequentially.

Recently Viewed Products

Softears RSV-MKII Pre-order: shipping time is an estimate. Non-cancellable and non-refundable.
$699.00 USD