



S.M.S.L - SU-X (Ex-Demo Unit)
Desktop Digital To Analog Converter (DAC)GET 18% GST INPUT
One of the reasons headphones and earphones in India are more expensive than overseas is
because of the Goods & Services Tax in India.
Don't let the GST input go to waste
especially if you can avail an offset.
All products sold on Headphone Zone carry
a GST compliant invoice and all products sold include an 18% GST.
Simply enter
your GST number at the time of checkout.
Browse EMI Plans
Low Cost EMI Options through Credit Cards
ICICI Bank
3
Low Cost EMI
₹ 23,958
₹ 1,874
₹ 1,510
6
Low Cost EMI
₹ 12,217
₹ 3,301
₹ 2,670
9
15.99%
₹ 8,305
₹ 4,746
12
15.99%
₹ 6,351
₹ 6,210
18
15.99%
₹ 4,400
₹ 9,193
24
15.99%
₹ 3,427
₹ 12,250
HDFC Bank
3
Low Cost EMI
₹ 23,958
₹ 1,875
₹ 1,510
6
Low Cost EMI
₹ 12,217
₹ 3,303
₹ 2,670
9
16%
₹ 8,305
₹ 4,749
12
16%
₹ 6,351
₹ 6,214
18
16%
₹ 4,400
₹ 9,199
24
16%
₹ 3,427
₹ 12,258
SBI Bank
3
Low Cost EMI
₹ 23,978
₹ 1,934
₹ 1,555
6
Low Cost EMI
₹ 12,182
₹ 3,094
₹ 2,492
9
15%
₹ 8,272
₹ 4,447
12
15%
₹ 6,318
₹ 5,817
18
16%
₹ 4,400
₹ 9,199
24
16%
₹ 3,427
₹ 12,258
Axis Bank
3
Low Cost EMI
₹ 23,958
₹ 1,875
₹ 1,510
6
Low Cost EMI
₹ 12,217
₹ 3,303
₹ 2,670
9
16%
₹ 8,305
₹ 4,749
12
16%
₹ 6,285
₹ 5,421
18
16%
₹ 4,400
₹ 9,199
24
16%
₹ 3,427
₹ 12,258
Other EMI Options through Credit Cards
Citi Bank
3
14%
₹ 23,880
₹ 1,640
6
14%
₹ 12,147
₹ 2,886
9
16%
₹ 8,305
₹ 4,749
12
16%
₹ 6,351
₹ 6,214
18
16%
₹ 4,400
₹ 9,199
24
16%
₹ 3,427
₹ 12,258
Kotak Mahindra Bank
Tenure
Interest%
Installment
Interest
3
16%
₹ 23,958
₹ 1,875
6
16%
₹ 12,217
₹ 3,303
9
16%
₹ 8,305
₹ 4,749
12
16%
₹ 6,351
₹ 6,214
18
16%
₹ 4,400
₹ 9,199
24
16%
₹ 3,427
₹ 12,258
RBL Bank
3
13%
₹ 23,840
₹ 1,522
6
14%
₹ 12,147
₹ 2,886
9
15%
₹ 8,272
₹ 4,447
12
15%
₹ 6,318
₹ 5,817
18
15%
₹ 4,367
₹ 8,605
24
15%
₹ 3,394
₹ 11,457
Standard Chartered Bank
3
13%
₹ 23,840
₹ 1,522
6
13%
₹ 12,113
₹ 2,678
9
14%
₹ 8,238
₹ 4,146
12
14%
₹ 6,285
₹ 5,421
INDUSIND Bank
3
14%
₹ 23,880
₹ 1,640
6
14%
₹ 12,147
₹ 2,886
9
15%
₹ 8,272
₹ 4,447
12
15%
₹ 6,318
₹ 5,817
18
15%
₹ 4,367
₹ 8,605
24
15%
₹ 3,394
₹ 11,457
HSBC Bank
3
12.50%
₹ 23,821
₹ 1,463
6
12.50%
₹ 12,096
₹ 2,574
9
13.50%
₹ 8,222
₹ 3,996
12
13.50%
₹ 6,269
₹ 5,224
18
13.50%
₹ 4,318
₹ 7,718
YES Bank
3
13%
₹ 23,840
₹ 1,522
6
13%
₹ 12,113
₹ 2,678
9
14%
₹ 8,238
₹ 4,146
12
14%
₹ 6,285
₹ 5,421
18
15%
₹ 4,367
₹ 8,605
24
15%
₹ 3,394
₹ 11,457
Bank of Baroda
3
13%
₹ 23,840
₹ 1,522
6
14%
₹ 12,147
₹ 2,886
9
14%
₹ 8,238
₹ 4,146
12
15%
₹ 6,318
₹ 5,817
18
15%
₹ 4,367
₹ 8,605
24
16%
₹ 3,427
₹ 12,258
American Express
3
14%
₹ 23,880
₹ 1,640
6
14%
₹ 12,147
₹ 2,886
9
14%
₹ 8,238
₹ 4,146
12
14%
₹ 6,285
₹ 5,421
18
15%
₹ 4,367
₹ 8,605
24
15%
₹ 3,394
₹ 11,457
Talk to a Headphone Guru
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Chi-Fi
Excellence
Ideal for Audiophiles
Ideal for
Desktop Use
Bluetooth with LDAC,
aptX-HD, aptX, SBC & AAC
XLR
Balanced Output
ESS Sabre ES9039MSPRO
Dual DAC Chip
Pair with Laptop via USB
A majority of people use a laptop as the primary source device to listen to music or watch movies. Since the laptop is an essential part of the audio chain there are headphones and devices designed to work a laptop or computer system flawlessly. With the availability of USB connectivity, it becomes easier to pair various devices like an Amp, DAC or even headphones without worrying about drivers or any additional piece of software.
Connect With USB-B/C,
Optical,Coaxial, I²S & AES
Metal
Build
Volume Controls
DEMO UNIT
Headphone Zone Certified Demo Headphones
Our careful selection of demo headphones gives you the experience of pre-burned in headphones - at drop dead prices. We do this sale every year to clear up our existing demos and to make way for new units instead. These demo headphones have been used at our Experience Studio in Mumbai. The pictures above depict the condition of the product and also indicate the accessories available with the headphone. For any specific questions about the condition please get in touch with us! While the product itself is fully tested by our Headphone Gurus and the outer packaging may have suffered some damage.
Get The Best Deal
You may or may not get the original packaging or some accessories may be missing & because of the fact that they've been extensively used as a demo at the Experience Studio, we give a good discount compared to a new gear.
Unchanged Policies
Received a defective Demo unit? Return it under our 7 Day Replacement Guarantee Policy.
P.S. If you do not like your gear, unfortunately we will not be able to accept the return.
Pre-Burned In
Demo headphones save you the time of burning in new headphones. Typically, brand new headphones take up to weeks to fully break in and sound as good as they should. With demo headphones, you get to enjoy the best sound out of the box.
Unbiased Customer Service
We have the same Headphone Zone customer support experience for Demo Units or any products.
Consider It Vintage
Vintage products have a certain charm that cannot be put into words. Think of old, discontinued demo headphones as vintage. They have a story; they have, how-to-say, character.
Professionally Inspected
A thorough inspection means you receive a 100% working headphone with no sound output issues.
IN THE BOX
| BOX CONTENTS | 1. S.M.S.L SU-X DAC (Demo Unit) |
| 2. Remote Control |
| WARRANTY | 3 Months |
DESCRIPTION
SU-X: ELEVATING AUDIO QUALITY WITH MQA DECODING
Introducing the SU-X, an MQA Audio DAC that brings a new dimension to your audio
experience. With MQA Full Decoding, the SU-X employs a sophisticated process to clean up recordings and
eliminate distortions caused during the conversion of analog sound to digital signals. This results in a
true 3D sound field, providing an unparalleled auditory journey that transcends conventional listening.
CUTTING-EDGE TECHNOLOGY FOR UNMATCHED PERFORMANCE
Equipped with the latest flagship dual ES9039MSPRO DAC chips from ESS, the SU-X
ensures powerful and precise audio decoding. The incorporation of XMOS XU-316 enhances USB capabilities,
supporting up to 768kHz for PCM and DSD512. The self-developed CK-03 clock processing circuit significantly
reduces clock jitter, contributing to a more stable and authentic audio reproduction.
DEDICATED POWER SUPPLY AND HIGH-END COMPONENTS
The SU-X prioritizes a stable and reliable power supply system, utilizing two groups of linear power supplies for digital and analog units separately. With 21 high-end dual op-amps and a myriad of HiFi components, the SU-X delivers a meticulous audio experience. Specially designed low-noise regulated power supplies enhance efficiency and lower power consumption.
EXQUISITE DESIGN AND CONVENIENT CONTROLS
The SU-X boasts a sleek design with a full-fit color IPS display screen featuring tempered glass for a durable and visually appealing aesthetic. The high-quality aluminum alloy housing complements the overall elegance. The device is equipped with gold-plated input and output interfaces, ensuring top-notch connectivity. The inclusion of a remote control and full-featured remote adds convenience to the user experience.
BLUETOOTH CONNECTIVITY AND CERTIFICATION
With support for LDAC, APTX/HD, SBC, and AAC, the SU-X embraces Bluetooth
technology for versatile connectivity. The device is not only a technological marvel but also holds the
Japan Audio Association (JAS) Hi-Res certification, underscoring its commitment to delivering high-quality
audio. The SU-X is a perfect blend of cutting-edge technology, precision engineering, and aesthetic finesse,
promising an exceptional audio journey for enthusiasts.
SPECS
| INPUTS | USB / Optical / Coaxial / Bluetooth/ I²S / AES |
| OUTPUTS | RCA / XLR |
| LINE OUTPUT AMPLITUDE | XLR - 5.2Vrms RCA - 2.5Vrms |
| THD+N | 0.00005%(-126dB)(UN-WTD) |
| DYNAMIC RANGE | XLR - 135dB RCA - 128dB |
| SNR | XLR - 135dB RCA - 128dB |
| USB TRANSMISSION | USB 2.0 Asynchronization |
| USB COMPATIBILITY | Windows 7 / 8 / 8.1 / 10 / 11(driver-required) Mac OSX10.6 above、Linux(No Driver) |
| MQA DECODER | USB / Optical / Coaxial / AES |
| MQA-CD DECODER | Optical / Coaxial / AES |
| SAMPLING RATE & BIT WIDTH | USB PCM - 44.1 ~ 768kHz(32bit) DSD - 2.8224 ~ 22.5792MHz(1bit) Optical / Coaxial - 44.1 ~ 192kHz(24bit) DoP - DoP256(USB),DoP64(Optical / Coaxial / AES) |
| BLUETOOTH | V5.1 |
| LDAC | 24bit/96kHz (990kbps/660kbps/330kbps) |
| APTX-HD | 24bit/48 kHz_576kbps |
| APTX | 16bit/44.1 kHz_352kbps |
| SBC | 16bit/44.1 kHz_328kbps |
| AAC | 16bit/44.1 kHz_320kbps |
| POWER CONSUMPTION | < 20W |
| STANDBY POWER | < 0.5W |
| SIZE | 250 x 51 x 217mm (WxHxD) |
| WEIGHT | 2.7kg/5.95lbs |
| BOX CONTENTS | 1. S.M.S.L SU-X DAC (Demo Unit) |
| 2. Remote Control |
OTHER DETAILS
| GENERIC NAME | Digital Audio Converter |
| IMPORTER DETAILS | Importers Name: Ferrari Video Address: 63/18, 1st Main Road, Gandhi Nagar, Chennai - 600020 Contact No: 044-24420733 |
| NET QUANTITY | 1 |
| PACKAGE CONTENTS | S.M.S.L SU-X DAC (Demo Unit) Remote Control |
Headphone Zone Certified Demo Headphones
Our careful selection of demo headphones gives you the experience of pre-burned in headphones - at drop dead prices. We do this sale every year to clear up our existing demos and to make way for new units instead. These demo headphones have been used at our Experience Studio in Mumbai. The pictures above depict the condition of the product and also indicate the accessories available with the headphone. For any specific questions about the condition please get in touch with us! While the product itself is fully tested by our Headphone Gurus and the outer packaging may have suffered some damage.
Get The Best Deal
You may or may not get the original packaging or some accessories may be missing & because of the fact that they've been extensively used as a demo at the Experience Studio, we give a good discount compared to a new gear.
Unchanged Policies
Received a defective Demo unit? Return it under our 7 Day Replacement Guarantee Policy.
P.S. If you do not like your gear, unfortunately we will not be able to accept the return.
Pre-Burned In
Demo headphones save you the time of burning in new headphones. Typically, brand new headphones take up to weeks to fully break in and sound as good as they should. With demo headphones, you get to enjoy the best sound out of the box.
Unbiased Customer Service
We have the same Headphone Zone customer support experience for Demo Units or any products.
Consider It Vintage
Vintage products have a certain charm that cannot be put into words. Think of old, discontinued demo headphones as vintage. They have a story; they have, how-to-say, character.
Professionally Inspected
A thorough inspection means you receive a 100% working headphone with no sound output issues.
| BOX CONTENTS | 1. S.M.S.L SU-X DAC (Demo Unit) |
| 2. Remote Control |
| WARRANTY | 3 Months |
SU-X: ELEVATING AUDIO QUALITY WITH MQA DECODING
Introducing the SU-X, an MQA Audio DAC that brings a new dimension to your audio
experience. With MQA Full Decoding, the SU-X employs a sophisticated process to clean up recordings and
eliminate distortions caused during the conversion of analog sound to digital signals. This results in a
true 3D sound field, providing an unparalleled auditory journey that transcends conventional listening.
CUTTING-EDGE TECHNOLOGY FOR UNMATCHED PERFORMANCE
Equipped with the latest flagship dual ES9039MSPRO DAC chips from ESS, the SU-X
ensures powerful and precise audio decoding. The incorporation of XMOS XU-316 enhances USB capabilities,
supporting up to 768kHz for PCM and DSD512. The self-developed CK-03 clock processing circuit significantly
reduces clock jitter, contributing to a more stable and authentic audio reproduction.
DEDICATED POWER SUPPLY AND HIGH-END COMPONENTS
The SU-X prioritizes a stable and reliable power supply system, utilizing two groups of linear power supplies for digital and analog units separately. With 21 high-end dual op-amps and a myriad of HiFi components, the SU-X delivers a meticulous audio experience. Specially designed low-noise regulated power supplies enhance efficiency and lower power consumption.
EXQUISITE DESIGN AND CONVENIENT CONTROLS
The SU-X boasts a sleek design with a full-fit color IPS display screen featuring tempered glass for a durable and visually appealing aesthetic. The high-quality aluminum alloy housing complements the overall elegance. The device is equipped with gold-plated input and output interfaces, ensuring top-notch connectivity. The inclusion of a remote control and full-featured remote adds convenience to the user experience.
BLUETOOTH CONNECTIVITY AND CERTIFICATION
With support for LDAC, APTX/HD, SBC, and AAC, the SU-X embraces Bluetooth
technology for versatile connectivity. The device is not only a technological marvel but also holds the
Japan Audio Association (JAS) Hi-Res certification, underscoring its commitment to delivering high-quality
audio. The SU-X is a perfect blend of cutting-edge technology, precision engineering, and aesthetic finesse,
promising an exceptional audio journey for enthusiasts.
| INPUTS | USB / Optical / Coaxial / Bluetooth/ I²S / AES |
| OUTPUTS | RCA / XLR |
| LINE OUTPUT AMPLITUDE | XLR - 5.2Vrms RCA - 2.5Vrms |
| THD+N | 0.00005%(-126dB)(UN-WTD) |
| DYNAMIC RANGE | XLR - 135dB RCA - 128dB |
| SNR | XLR - 135dB RCA - 128dB |
| USB TRANSMISSION | USB 2.0 Asynchronization |
| USB COMPATIBILITY | Windows 7 / 8 / 8.1 / 10 / 11(driver-required) Mac OSX10.6 above、Linux(No Driver) |
| MQA DECODER | USB / Optical / Coaxial / AES |
| MQA-CD DECODER | Optical / Coaxial / AES |
| SAMPLING RATE & BIT WIDTH | USB PCM - 44.1 ~ 768kHz(32bit) DSD - 2.8224 ~ 22.5792MHz(1bit) Optical / Coaxial - 44.1 ~ 192kHz(24bit) DoP - DoP256(USB),DoP64(Optical / Coaxial / AES) |
| BLUETOOTH | V5.1 |
| LDAC | 24bit/96kHz (990kbps/660kbps/330kbps) |
| APTX-HD | 24bit/48 kHz_576kbps |
| APTX | 16bit/44.1 kHz_352kbps |
| SBC | 16bit/44.1 kHz_328kbps |
| AAC | 16bit/44.1 kHz_320kbps |
| POWER CONSUMPTION | < 20W |
| STANDBY POWER | < 0.5W |
| SIZE | 250 x 51 x 217mm (WxHxD) |
| WEIGHT | 2.7kg/5.95lbs |
| BOX CONTENTS | 1. S.M.S.L SU-X DAC (Demo Unit) |
| 2. Remote Control |
OTHER DETAILS
| GENERIC NAME | Digital Audio Converter |
| IMPORTER DETAILS | Importers Name: Ferrari Video Address: 63/18, 1st Main Road, Gandhi Nagar, Chennai - 600020 Contact No: 044-24420733 |
| NET QUANTITY | 1 |
| PACKAGE CONTENTS | S.M.S.L SU-X DAC (Demo Unit) Remote Control |
Don't sweat it, this
S.M.S.L - SU-X (Ex-Demo Unit) comes with a 3 Months warranty
from S.M.S.L that covers manufacturing defects.
All products featured on Headphone Zone are backed by an original manufacturer's warranty.
Read more about S.M.S.L's warranty in India.

"From entry-level to high-end, SMSL ensures every music lover can afford a well-performing DAC. Mentioning several successful seriesIt has a higher light transmittance highlights simplicity and beauty."
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