FiiO

FiiO - KA13

Q: What is the warranty period on the FiiO KA13 and how do I claim warranty?

The warranty period on FiiO KA13 is for 1 year. To read more information click here .

Q: How to control the KA13 via the FiiO Control APP in Android mobile phone?

Connect the KA13 to the Android mobile phone via the USB c to c adapter that comes with the KA13. You could search “FiiO Control” in any application market to download it. Or directly download the APK file: Click here. After adjusting the setting for KA13 in FiiO Control APP, the buttons in KA13 will not work again before FiiO Control APP returns to the homepage. (You could click the return icon in the top left corner for returning to homepage) Note: 1.The KA13 could not be controlled via the iOS version FiiO Control APP. But after adjusting the setting in KA13 or in Android FiiO Control, the settings will be saved. 2.Please update the FiiO Control APP to latest version first.

Q: How to use the KA13 as a USB DAC for computers?

[Windows PC] 1.It runs drive-free in Windows 10 and above systems. 2.Install the FiiO USB DAC driver. It supports ASIO output for further DSD256. Please click the link here to download the driver: Click here. 3.On the menu of settings - audio output device of the playback software, select 'FiiO KA13' and then connect the KA13 to the headphones to listen to music. DSD track playback settings: Click here. [MAC computer] MAC systems do not need a driver. If connecting to a Type-C port of the computer, use a Type-C to Type-C cable for direct connection. If connecting to a USB-A port, use a USB-A to Type-C cable for connection. Please select 'FiiO KA13' as the audio output device on the computer. [Linux PC] Linux system also runs drive-free. Theoretically, connecting the KA13 directly to a Linux computer would work. But since there are too many versions, we cannot guarantee all systems are compatible. So, if the connection fails, it is suggested to change the data cable or USB port to troubleshoot the problem. Otherwise, the failed recognition means nonsupport. Music stutters on some Windows computers due to the driver (1) It is due to the different power management policies of some computers. Please go to the settings menu of Control panel->Hardware and Sound->Power options to disable the 'USB selective suspend setting' and then restart the computer. (2) If the problem still exists, please go to the Power options->PCI Express and turn off Link State Power management. (3) If it still can't be solved, please choose the driver-less mode. Uninstall the DAC driver and ASIO, and then choose the KA13 as the output device.

Portable USB DAC & Amp

#4 BEST SELLER

Portable Amps & DACs

₹ 5,699

MRP: ₹ 5,999

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Tenure Interest% Installment Interest

15.99%

₹ 1,951

₹ 153

15.99%

₹ 995

₹ 269

15.99%

₹ 676

₹ 386

15.99%

₹ 517

₹ 506

15.99%

₹ 358

₹ 748

15.99%

₹ 279

₹ 997

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Tenure Interest% Installment Interest

16%

₹ 1,951

₹ 153

16%

₹ 995

₹ 269

16%

₹ 676

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16%

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16%

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Tenure Interest% Installment Interest

16.5%

₹ 1,952

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15%

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₹ 673

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₹ 279

₹ 998

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Tenure Interest% Installment Interest

16%

₹ 1,951

₹ 153

16%

₹ 995

₹ 269

16%

₹ 676

₹ 387

16%

₹ 512

₹ 441

16%

₹ 358

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16%

₹ 279

₹ 998

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Tenure Interest% Installment Interest

14%

₹ 1,944

₹ 133

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₹ 989

₹ 235

16%

₹ 676

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₹ 517

₹ 506

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Tenure

Interest%

Installment

Interest

16%

₹ 1,951

₹ 153

16%

₹ 995

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₹ 676

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₹ 517

₹ 506

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₹ 749

16%

₹ 279

₹ 998

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Tenure Interest% Installment Interest

13%

₹ 1,941

₹ 124

14%

₹ 989

₹ 235

15%

₹ 673

₹ 362

15%

₹ 514

₹ 474

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₹ 356

₹ 701

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₹ 276

₹ 933

Standard Chartered Bank

Tenure Interest% Installment Interest

13%

₹ 1,941

₹ 124

13%

₹ 986

₹ 218

14%

₹ 671

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₹ 512

₹ 441

INDUSIND Bank

Tenure Interest% Installment Interest

14%

₹ 1,944

₹ 133

14%

₹ 989

₹ 235

15%

₹ 673

₹ 362

15%

₹ 514

₹ 474

15%

₹ 356

₹ 701

15%

₹ 276

₹ 933

HSBC Bank

Tenure Interest% Installment Interest

12.50%

₹ 1,939

₹ 119

12.50%

₹ 985

₹ 210

13.50%

₹ 669

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13.50%

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Tenure Interest% Installment Interest

13%

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Tenure Interest% Installment Interest

13%

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American Express

Tenure Interest% Installment Interest

14%

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₹ 133

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₹ 441

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Color: Midnight Black

Midnight Black Dawn Silver

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DELIVERY

Dispatches in 24 hours

What does "ships within 24/48 hours" mean?

In a nutshell, ships within 24/48 hours basically means that your product will be shipped out or dispatched from our warehouse within 24/48 hours after placing the order. It also indicates that the products are readily available at our warehouse and once we receive your order, we dispatch it out at the earliest either on the same day or the next working day depending on when you’ve placed your order.

What it does not mean:

A lot of our customers assume that it means their order will get delivered to them within 24/48 hours, but that’s not what it means. For an order to reach you, it can take anywhere up to 3-4 business days, depending on which part of India you are placing an order from.

For an accurate timeline, you can enter your pin code on the product page and check for an estimated date of arrival.

Delivery By:

RETURNS & WARRANTY

7 Day Replacement Guarantee

In case you receive the FiiO - KA13 with a manufacturing defect, please raise a return request within 7 days of delivery.

However, if you receive an incorrect / damaged / different product or one with missing accessories, please raise a return request within 24 hours of delivery. In case you receive a product with a missing, incorrect, or faulty accessory, you will be given a replacement accessory instead of the entire product.

Please make sure that the product is in the original packaging with all the accessories it came with. We'll also need an unboxing video and images of the parcel to investigate about the discrepancy. You may be asked to share images of the product and the packaging received for us to determine the damage or defect prior to approving the return request. The free replacement will be shipped only once the original order is returned.

A replacement will be issued only if:

- It is found to be defective
- It is determined that the product was not damaged while in your possession
- The product is not different from what was shipped to you
- The product is returned in original condition (with brand’s/manufacturer's box, MRP tag intact, user manual, warranty card and all the accessories therein)

7 Day Easy Exchange

The FiiO - KA13 is eligible for Easy Exchange within 7 days of delivery. Your exchange request will be accepted only once. We want to make sure that you end up with a product that you 100% love.

An exchange will be allowed only if the product is returned in original condition (with brand’s/manufacturer's box, MRP tag intact, user manual, warranty card and all the accessories therein)

You will receive full Store Credit in your Headphone Zone account so that you may choose another product from our website which would be more suited to your needs. Refunds will NOT be possible under our 7 Day Easy Exchange Policy.

1 Year Warranty

Warranty & Services

Don't sweat it, this FiiO - KA13 comes with a 1 Year warranty from FiiO that covers manufacturing defects. All products featured on Headphone Zone are backed by an original manufacturer's warranty.

Read more about FiiO's warranty in India.

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FiiO FiiO - KA13

₹ 5,699

MRP: ₹ 5,999

Why FiiO is Special

🇨🇳

Designed in China

Established & Reputed

Trust us, our reputation in the audio world speaks for itself!

This headphone or gear comes from a well-respected brand known for its high-quality audio equipment, so you can be confident in your purchase.

If you see a product marked as “🎖️ Established & Reputed”, it means you're getting a top-tier device from a brand that's earned its stripes in the audio industry.

Revered by Audiophiles

Audiophiles can be really picky and tough to impress and if the audiophile community says something sounds good, you can bet it's great!

This headphone or gear has gained recognition and admiration from audiophiles, who are known for their discerning taste in high-fidelity audio. They appreciate its precision, attention to detail and its ability to deliver an immersive sonic experience.

If you see a product marked as "🙌🏻 Revered by Audiophiles", it means that it meets the highest standards of sound quality and performance, making it a top choice for anyone who values exceptional audio experiences.

🐣

Born in 2007

Why we love this DAC/Amp

Premium Economy

Sensible spending and class above in quality.

This headphone or gear offers top-notch sound and performance without much impact on your pocket, promising a delightful experience that exceeds your expectations at an economical price point.

If you see a product marked as “💎 Premium Economy," it indicates that you're getting a high-quality audio product with exceptional sound clarity and reliable performance, all at a budget-friendly price.

For Enthusiasts on a Budget

We are here to help you find the best bang for your buck.

This headphone or gear is made for all passionate hobbyists who want top-notch gear without breaking the bank.

If you see a product marked as “🪴 For Enthusiasts on a Budget”, get ready to indulge in your music with high-quality, affordable products that keep your wallet happy and your enthusiasm alive!

Audiophile Community Favourite

This headphone or gear has a seal of approval from our audiophile community.

It is hit among the pickiest of audio enthusiasts. It comes with two thumbs up and is the community’s and one of our favourites.

If you see a product marked as “🦋 Audiophile Community Favourite”, you're in for a sonic treat with top-tier sound quality that will make your ears swoon and elevate your listening experience to new heights!

Incredibly Popular

Some things deserve all the attention.

This headphone or gear is a crowd favourite, winning over fans everywhere with its undeniable audio quality.

If you see products marked as “🥇 Incredibly Popular”, you’re opting for a tried-and-true choice that’s loved by many, ensuring you're getting something that’s proven to be awesome and widely acclaimed.

For Audiophiles On-the-Go

Are you an audiophile looking to carry your music with you wherever you go?

This headphone or gear is portable and is designed to deliver top-notch audio quality on the move, ensuring your favourite tracks sound their best no matter where you are.

If you see a product marked "🛺 For Audiophiles On-the-Go", it means this product is perfectly portable, turning every journey into a musical adventure with studio-quality sound!

Works Great with Type-C

Don’t have a 3.5mm headphone jack on your phone? Don’t worry we got you covered.

This headphone or gear is fully compatible with Type-C USB connectors. Not only do they seamlessly connect to your device without needing an additonal dongle or adapter and ensures optimal performance without any hassle.

If you see a product marked as “📱 Works Great with Type-C”, you can be confident that you'll experience seamless connectivity with a universal connection standard that simplifies your audio setup.

Built like a Tank

No need to worry about durability.

If you're seeking a headphone or gear with a strong, rugged build, this snapshot indicates that this is the one for you.

If you see a product marked with “🪖 Built like a Tank", it means this product is crafted with metal in its design, ensuring exceptional robustness and durability.

Why it Sounds Amazing

DAC Chip

Know the secret to your pristine audio.

This headphone or gear reveals the secret sauce behind superior audio quality, highlighting the presence of a high-performance DAC chip for pristine sound reproduction.

If you see products marked as “⚙️ DAC Chip”, expect to experience your music with unparalleled clarity, detail, and fidelity, ensuring that every note and nuance is faithfully reproduced for your listening pleasure.

Power Output

When you need that juice to get the best out of your products.

This headphone or gear packs a punch, revealing the product's impressive power output capabilities, ensuring it can handle even the most demanding products with ease.

If you see products marked as “🚀 Power Output”, you're in for a treat with robust performance for driving high-fidelity products without breaking a sweat.

Balanced Output

Upgrading from single-ended to balanced can be the easiest way to improve your sound.

This DAC, Amp or Hi-Res player offers a balanced output, ensuring pristine audio quality with minimised interference and enhanced clarity for your listening pleasure.

If you see a product marked as "⚖️ Balanced Output”, get ready for a symphony of crystal-clear tunes, free from any unwanted noise drama!

FiiO Introduces The Upgraded Version Of The KA3 DAC And Amp - THE KA13

After almost two years of refinement, the FiiO KA3 has transformed into the KA13, now functioning as a mini desktop-class DAC and headphone amplifier. This upgraded version integrates a new design, advanced technology, and robust performance into a single device. FiiO's focus on versatility is evident in the KA13, which aims to provide users with a comprehensive USB dongle for a range of high-quality audio experiences. The FiiO x Jade Audio KA13 is a portable USB DAC/AMP with enhanced audio circuitry, featuring desktop-grade amplification that effortlessly drives IEMs and headphones with a solid output of up to 550mW. It incorporates a high-performance Dual DAC chipset with two CS43131 DAC chips for crystal-clear decoding of high-resolution PCM and DSD audio signals. With an exquisite build and an exclusive ambient light display window, the FiiO x Jade Audio KA13 enhances your music enjoyment.

Features Dual-DAC Arrangement For Hi-Res Sound

The FiiO KA13 ensures crystal-clear decoding of Hi-Res sound signals, featuring a premium dual DAC chipset with dual CS43131 32-bit DAC chips. With full support for decoding high-resolution PCM (32-bit/384kHz) and Native DSD256 audio signals, the KA13 takes your audio experience to new heights.

Desktop-Grade Amplification Stage For High-Performance

FiiO KA13 is embedded with a portable DAC that incorporates a mini desktop-class amplifier, housing dual 8262 high-power OPAMPs that deliver a robust output of up to 550mW, effortlessly powering most IEMs and even some power-demanding headphones. The two low-noise SGM8262 op-amps in this "dual-core" configuration ensure exceptional performance, allowing you to rediscover your music collection with newfound details.

Features Dual Headphone Output For Audiophiles and Professionals

FiiO KA13 offers dual output options, supporting single-ended and balanced headphone connections through 3.5mm and 4.4mm ports, respectively. The 3.5mm output also functions as a coaxial SPDIF output. FiiO's engineers have skilfully designed the compact dongle to accommodate two headphone outputs, showcasing advancements in packaging capabilities.

Supported By The FiiO Control App To Access Hi-End Features

FiiO KA13 is supported and controlled via the FiiO Control app to access the features of the device. It allows the users to conveniently adjust RGB lights, SPDIF output, audio filters, etc. as they prefer.

Note: The FiiO Control App's control over KA13 is supported only on Android Devices. To download the app click here.

Features Dual-DAC Arrangement For Hi-Res Sound

Desktop-Grade Amplification Stage For High-Performance

Features Dual Headphone Output For Audiophiles and Professionals

Supported By The FiiO Control App To Access Hi-End Features

Note: The FiiO Control App's control over KA13 is supported only on Android Devices. To download the app click here.

Comes With Adapter Cable For Seamless Connectivity

FiiO KA13 comes with adapter cables featuring a detachable design for easy accessibility. It also features a Type-C and a lightning adapter cable to make it compatible across various devices. The KA13 offers versatility for seamless connectivity across various systems, including Android, iOS, Windows, and Mac devices.

Embeds Dedicated RGB Light For Audio Sampling Rate

Additionally, the ambient light window provides quick insight into the audio sampling frequency, assuring you of the playback quality. The RGB light indicators include Light Blue for PCM≤48kHz, Yellow for PCM >48kHz, and Green for DSD signals, adding aesthetic appeal and practical functionality.

Exquisitely Designed And Available In Two Colors

FiiO KA13 boasts a stunning design, featuring a premium metallic chassis and a distinctive ambient glass window. The CNC metal body exhibits unique lines on the front and exquisite texture on the rear, creating an aggressive yet futuristic appearance that is soft to the touch for enhanced comfort. It is available in two colours- midnight black and dawn silver to choose from as you prefer.

Comes With Adapter Cable For Seamless Connectivity

Embeds Dedicated RGB Light For Audio Sampling Rate

Exquisitely Designed And Available In Two Colors

Accessories to Get you Started

1. Type-C to Type-C Cable
2. Type-C to Lightning Cable
3. Type-C to USB-A Cable
4. Manual
5. Warranty Card

All You Need To Know About The FiiO KA13

DAC

Cirrus Logic CS43131 * 2

Headphone Output

3.5mm (Single-Ended)
4.4mm (Balanced)

3.5mm Headphone Output

Output Power:
L+R>290mW+290mW@16 Ohms(Desktop Mode ON)
L+R≥70mW+70mW@160(Desktop Mode OFF)
L+R>170mW+170mW@32 Ohms(Desktop Mode ON)
L+R>50mW+50mW@32 Ohms(Desktop Mode OFF)
L+R>19.5mW+19.5mW@30000(Desktop Mode ON)
L+R>5mW+5mW@30000(Desktop Mode OFF)
Frequency Response:
20Hz~20kHz, Damping≤0.1dB
20Hz~50kHz, Damping≤0.2dB
THD+N: <0.0005% (0dB, 32 Ohms)
Peak Output Voltage: ≥2.3V (32 Ohms, THD+N<1%)
Output Impedance: <1.7 Ohms
Crosstalk: ≥72dB (1kHz, 32 Ohms)
Noise Floor: 2.5uV&1.7uV”A”
SNR: ≥122dB (32 Ohms, A-weighted)

4.4mm Headphone Output

Output Power:
L+R>500mW+500mW@16 Ohms(Desktop Mode ON)
L+R>260mW+260mW@16 Ohms(Desktop Mode OFF)
L+R>550mW+550mW@32 Ohms(Desktop Mode ON)
L+R≥170mW+170mW@16 Ohms(Desktop Mode OFF)
L+R>78mW+78mW@30000(Desktop Mode ON)
L+R>20mW+20mW@160(Desktop Mode OFF)
Frequency Response:
20Hz~20kHz, Damping≤0.1dB
20Hz~50kHz, Damping≤0.1dB
THD+N: <0.0005% (-5dB, 32 Ohms)
Peak Output Voltage: ≥4.2V (32 Ohms, THD+N<1%)
Output Impedance: <1.8 Ohms
Crosstalk: ≥110dB (1kHz, 32 Ohms)
Noise floor: 4.6uV&3.1uV”A”
SNR: ≥122dB (32 Ohms, A-weighted)

Max Supported Sampling Rate

384K/32bit
DSD64/128/256
384K/32bit (Coaxial)

Buttons and Ports 

USB Port: Type-C USB
Physical Button: Adjust Volume, Switch Songs
Toggle Switch: Desktop Mode Switch
3.5mm Plug: Single-Ended/SPDIF Output (Shared)
4.4mm Plug: Balanced Output

Other Details

Generic Name	DAC & Amp
Importer Details	Importers Name: Ferrari Video Address: 63/18, 1st Main Road, Gandhi Nagar, Chennai - 600020 Contact No: 044-24420733
Net Quantity	1

Manufacturer Details	Name: HK JADE Audio Technology CO., Limited Address: Room 1508, 15/F, Yalam Central Studio II, 625 Nathan Road, Kowloon, CHINA
Package Contents	FiiO KA13 Type-C to Type-C Cable Type-C to Lightning Cable Type-C to USB-A Cable Manual Warranty Card

Manuals & Guides

Quick Start Guide | KA13

Portable USB DAC & Amp

1 Year Warranty

Inspiring Audio Excellence Worldwide

FiiO creates high-quality music gear like DACs, Music Players, and Amplifiers at affordable prices, appealing to music lovers worldwide. With a presence in India via its FiiO India website and global availability on various platforms, FiiO focuses on user needs and innovation to deliver exceptional audio solutions. Their product range, spanning players, speakers, earphones, and DAC & Amp, aims to inspire with soulful music experiences.

Fun fact:The brand name FiiO is composed of Fi (fidelity from HiFi) and iO (number 1&0), representing the convenience that the digital world brings to life.

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The KA13 has solid build and is very portable, with generous accessories and a fine-tuned independent volume controller and it wholeheartedly gets my recommendation.

With praise-worthy build quality, a truly competent desktop-mode, USB + Lightning cables, and a conception design that makes it the perfect companion for any of your digital sources – heck, it even works on my XBox.

The FiiO KA13 at its price point is unbeatable especially to obtain max power output at the set cost. It’s what makes the KA13 appealing. You are getting one of the most powerful dongles out there, and it’s still highly affordable.

The FiiO KA13 is a superb little dongle that can serve up true audiophile sound on the move from your iOS or Android smartphone. It’s an easy headphone DAC to use and operate.

The FiiO KA13 is otherwise a very good source for the money, although I mostly recommend it for people who like the aesthetics and find themselves in need of the extra power that's best used with a desktop PC or laptop

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DAC Chip

Dual Cirrus Logic CS43131

Dual ESS Sabre ES9219C

Dual Cirrus Logic CS43198

Headphone Output

3.5mm (Single-Ended)
4.4mm (Balanced)

Ideal For

🦈 Serious Audiophiles Only

🪴Budding Enthusiasts

Power Output

Upto 3.0Vrms @ 32 Ohms

Upto 320mW @ 32 Ohms

Upto 500 mW @ 32 Ohms

Input

USB-C

Have a question? Get in touch!

Check out the most common questions our customers ask. Still have questions? Talk to our Headphone Gurus.

Our customer support is available Monday to Friday: 10.30am-6:30pm.Average answer time: 2-3 Hours

What is the warranty period on the FiiO KA13 and how do I claim warranty?

The warranty period on FiiO KA13 is for 1 year. To read more information click here.

How to control the KA13 via the FiiO Control APP in Android mobile phone?

Connect the KA13 to the Android mobile phone via the USB c to c adapter that comes with the KA13.
You could search “FiiO Control” in any application market to download it. Or directly download the APK file: Click here.
After adjusting the setting for KA13 in FiiO Control APP, the buttons in KA13 will not work again before FiiO Control APP returns to the homepage. (You could click the return icon in the top left corner for returning to homepage)
Note:
1.The KA13 could not be controlled via the iOS version FiiO Control APP. But after adjusting the setting in KA13 or in Android FiiO Control, the settings will be saved.
2.Please update the FiiO Control APP to latest version first.

How to use the KA13 as a USB DAC for mobile phones?

[Android-based phone/PAD]
Use the TypeC-TypeC data cable to connect the KA13 to a mobile phone. So you can directly enjoy high-quality music by playing songs.
Notes:
1. A compatibility issue may occur to certain Android mobile phones or music players due to system and hardware differences.
2. Some mobile phones are required to turn on the OTG function, so as to use the KA13 normally.For detailed settings please consult the support of mobile phones.
3. Some mobile phones may show the 'non-certified Type-C digital headphone'notification. You can ignore the message and use it normally.
【iPhone/iPad】
Use the Lightning-TypeC OTG adapter to connect the KA13 to an iPhone/iPad/iPod. So you can directly enjoy high-quality music by playing songs.
Notes:
1.Only supports iOS10.0.2 and above. Apple devices below this version cannot be supported because of the iOS itself.
2.Since there are limitations for iPhone to power the external USB device, the KA13 with high output power may have stuttering or no sound problems at extreme volume.
About the Exclusive USB Audio Access Mode
Due to system and hardware differences of certain Android mobile phones, there may be some permission conflicts and compatibility issues when they are working in the Exclusive USB Audio Access Mode. Here are some situations we have noticed.
1.For some mobile phones with no physical volume buttons (such as the HUAWEI Mate30 Pro), in the FiiO Music app USB Audio Access Mode, you can adjust the volume by sliding on the current playback page to bring up the volume bar.
2.For some mobile phones, third-party apps are forbidden in the background by default in their power management policies. This will cause a stop on the playback after a few seconds when the music app is working in the Exclusive USB Audio Access Mode. If it happens, please set the app to stay working while asleep in the battery management setting of the mobile phone.
3.When the music app is working under the Exclusive USB Audio Access Mode, the sound may be stuttered or paused when operating other apps. We are working on this issue. It is suggested to focus on listening to music when using the Exclusive USB Audio Access Mode, or disable the Exclusive USB Audio Access Mode when listening to music.

How to use the KA13 as a USB DAC for computers?

[Windows PC]
1.It runs drive-free in Windows 10 and above systems.
2.Install the FiiO USB DAC driver. It supports ASIO output for further DSD256. Please click the link here to download the driver: Click here.
3.On the menu of settings - audio output device of the playback software, select 'FiiO KA13' and then connect the KA13 to the headphones to listen to music.
DSD track playback settings: Click here.
[MAC computer]
MAC systems do not need a driver. If connecting to a Type-C port of the computer, use a Type-C to Type-C cable for direct connection. If connecting to a USB-A port, use a USB-A to Type-C cable for connection. Please select 'FiiO KA13' as the audio output device on the computer.
[Linux PC]
Linux system also runs drive-free. Theoretically, connecting the KA13 directly to a Linux computer would work. But since there are too many versions, we cannot guarantee all systems are compatible. So, if the connection fails, it is suggested to change the data cable or USB port to troubleshoot the problem. Otherwise, the failed recognition means nonsupport.
Music stutters on some Windows computers due to the driver
(1) It is due to the different power management policies of some computers.
Please go to the settings menu of Control panel->Hardware and Sound->Power options to disable the 'USB selective suspend setting' and then restart the computer.
(2) If the problem still exists, please go to the Power options->PCI Express and turn off Link State Power management.
(3) If it still can't be solved, please choose the driver-less mode. Uninstall the DAC driver and ASIO, and then choose the KA13 as the output device.

Can I connect the KA13 with the NS or PS5?

the KA13 doesn't support UAC 1.0 mode. So it is could not work with NS or PS5 via USB connection.

How to enable the desktop mode in KA13? When should I enable it?

When the D.MODE is toggled to ON, the desktop mode is on. The output power and gain of KA13 could be higher. It is recommended to drive high-impedance headphones or the device which is hard to be driven.
When the D.MODE is toggled to OFF, the desktop mode is off. The KA13 is used for daily music enjoying and driving the low-impedance headphones.