E1DA 9039S

2.5mm Balanced Input USB-C DAC Headphone Amp

$139.00 USD
Connection2.5mm BalancedUSB-C DAC headphone amp
SoundCustomizable ControlAdjustable settings
Preorder periodPre-order
1 week.

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

Pre-order details

Overview

The details behind E1DA 9039S.

Superior Sound, Anywhere, Anytime

Elevate your audio experience with the E1DA 9039S, a compact DAC that redefines portable audio excellence. With unmatched sound quality and performance, the 9039S delivers a listening experience like no other, making it the ultimate companion for audiophiles on the go.

Engineered for Perfection

Built on a legacy of innovation, the 9039S is the result of relentless pursuit of audio perfection. Designed to outperform the competition, the 9039S sets a new standard for portable DACs, offering a level of clarity and precision that's simply unmatched.

Unrivaled Performance, Uncompromising Quality

Experience the power of true audio fidelity with the 9039S. With dual ES9039Q2M chips, the 9039S delivers a dynamic range of 133db(A) and minimal distortion, ensuring every note is reproduced with stunning accuracy and detail.

Real-World Testing, Real-World Results

Tested under real-world conditions, the 9039S consistently delivers exceptional performance. With rigorous testing and meticulous attention to detail, the 9039S ensures unmatched reliability and consistency, even under the most demanding circumstances.

The Future of Portable Audio

Join the revolution in portable audio with the 9039S. With its advanced features and unmatched performance, the 9039S is the future of portable DACs, offering audiophiles a new level of audio excellence.

Customizable Control, Seamless Integration

Take control of your audio experience with the Tweak_9039.exe app. Offering customizable features and advanced settings, the app allows you to tailor your DAC to suit your preferences, ensuring a seamless integration with your existing setup.

Unmatched Support, Unparalleled Peace of Mind

Rest easy knowing that your investment is protected with unrivaled support and guidance. With dedicated firmware updates and expert assistance, we're committed to ensuring that your experience with the 9039S is nothing short of exceptional.

Technical details

Materials
Sandblasted/anodized aluminum, ES9039Q2M/AD8397/OPA1612 chipsets, Taiwanese connectors, Susumu resistors, Kemet, TDK, Murata cps.
Dimensions
48x22x9mm.
Weight
10g.
Power
USB 5V power rail (no internal battery), 150mA idle current. The device contains 4500uF of solid-polymer Low-ESR capacitors.
Input
USB-C tighter grip version. PCM up to 32b/384kHz, DSD256.
Output
Balanced output 2.5mm jack A&K pinout. (Note: Unbalanced adapters are not recommended as they can damage the DAC.)
Output impedance
0.1 Ohm @ 1000Hz Agilent U1733C.
Output power
400mW @ 32ohm @ 1kHz @ THD=1% each channel., 680mW @ 16ohm @ 1kHz @ THD=1% each channel., Measured at +0.5dbFS level, typical PC USB2 port powered.
Frequency response
DC-130kHz +0.05/-3db @ 32b/384kHz; -0.5db at 45kHz. (Note: DC performance is limited by DC protection.)
Dynamic Range (DR AES17)
130db A-weighted, with just a couple db of the full-scale noise modulation.
THD+N@1kHz@-0dbFS
-125.66db averaged for 10 samples @ 32b/96kHz @ 10k 49MHz., -124.77db averaged for 10 samples @ 32b/96kHz @ 32ohm 49MHz., -122.9db averaged for 10 samples @ 32b/96kHz @ 16ohm 49MHz.
THD@1kHz@-0dbFS
-140db typical calibrated with Cosmos APU 32b/96kHz @ 10k 49MHz., -145db typical calibrated with Cosmos APU 32b/96kHz @ 10k 24MHz.

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Product care
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Customer reviews

What listeners say about sound, fit and everyday use.

Write a review

Customers praised this compact DAC/headphone amplifier for exceptional sound quality and power delivery at a competitive price point. Works well with high-end headphones like Sennheiser models. Some noted occasional volume jumps with Windows and crackling through powered speakers without a muting function.

  • 5 stars: 4 (67%)
  • 4 stars: 1 (17%)
  • 3 stars: 1 (17%)
  • 2 stars: 0 (0%)
  • 1 star: 0 (0%)
Z
Zoltan S.
satisfaction guaranteed

I ordered it with great anticipation, I prepared the appropriate cable for its use, I have Sennheiser HD598 headphones, and I use them not with a phone, but from a PC. I have two good quality DACs, but I have put them all aside since the E1DA arrived. I also use the tweak program for it, it is useful and necessary at the same time. The distortion compensation is still to be done, the necessary AD is being purchased from Cosmos ADciso in the near future. I am fully satisfied with the sound quality, the occasional jump in the volume is not a perfect cooperation with Windows. I will prepare a decent quality symmetrical-asymmetrical converter circuit for it, so that I can listen to it on speakers through an amplifier with asymmetrical input.
Congratulations on the engineering feat and the execution.

K
Kostas M. (Brisbane, AU)
Amazing for its size

The high-quality and sound quality is amazing. The only issue I have as it doesn’t have a muting function. So when there is no audio signal you can get crackling through powered speakers.

P
Periklis G. (Athens, GR)
Small but brilliant

Excellent mobile dac and head amp.
Need nothing more but a set of high quality headphones to enjoy your music while you're mobile. Combined with USB audio player apk and external power supply e.
g. a power bank you have a truly high end system for a very reasonable price.

A
Amit G. (Dublin, IE)

E1DA 9039S

J
J
Quality accessory

powerful little dongle, capable of delivering lots of power to the headphones. Highly recommended.

d
dan b. (Walnut Creek, US)
An excellent DAC / headphone amp

Excellent, excellent, excellent! This DAC / headphone amp is as good as any k$ competitor for a fraction of the price. I use it daily with my Sennheiser HD Pro 490 and the HD 650 from an iPhone 15 or a Linux desktop.

R
Robert-Andrei B.

P. S. I have seen the E1DA 9038D has 3.5 mm unbalanced output, but sadly, it's out of stock. Will you ever bring it back?

Linsoul Audio

Hello,

Thank you for your interest in our portable headphone amplifiers!

The E1DA 9038D, which features a 3.5mm unbalanced output, is currently out of stock. Production was suspended due to increased chip costs, making it uncertain when or if it will be restocked.

However, the E1DA 9039S is available and offers a 4.4mm balanced output. If you're looking for a device with a 3.5mm unbalanced output, we can recommend alternative models that meet your requirements.

R
Robert-Andrei B.

Hello,

I would like to purchase one of your awesome portable headphone amps, but I would like something for 3.5 mm unbalanced or 4.4 mm pentaconn jack, if you have. Thank you! :)

Linsoul Audio

Hello,

Thank you for your interest in our products!

The E1DA 9039S is a balanced DAC/AMP with a 4.4mm Pentaconn output. If you're specifically looking for a 3.5mm unbalanced option, you might consider other models, as the 9039S is designed exclusively for balanced output.

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: 1 week.

Note:

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

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E1DA 9039S Pre-order: shipping time is an estimate. Non-cancellable and non-refundable.
$139.00 USD