New Customer?
Create your accountNo products
Prices are tax included
By buying this product you get 47 loyalty points
Viewed products
![[GRADE A] AUNE S9C PRO DAC 2x ES9068AS Discreet Headphone Amplifier 5W Bluetooth 32bit 768kHz DSD512 MQA Back](https://www.audiophonics.fr/64487-thumb_default/aune-s9c-pro-dac-2x-es9068as-discreet-headphone-amplifier-5w-bluetooth-32bit-768khz-dsd512-mqa-back.jpg)
![[GRADE A] Mono Power Amplifier Modules LM3886 with Heatsinks 2x120W / 8 Ohm (Pair)](https://www.audiophonics.fr/64212-thumb_default/mono-power-amplifier-modules-lm3886-2x120w-8-ohm-pair.jpg)
SMSL unveils, with the DO300EX, a powerful, high-quality DAC/headphone amplifier. It incorporates quality components such as the AK4499EX DAC chip coupled with an AK4191 digital filter interface, an XMOS XU316 USB interface, 5 OPA 1612A, a TPA6120A2 headphone amplifier chip and the latest-generation Qualcomm QCC5125 Bluetooth chip. Moreover, an MQA decoder is integrated into the DO300EX. This DAC is capable of decoding high-resolution audio streams up to PCM 32bit 768kHz, DSD512 and MQA-CD. Performance on the headphone amplifier side is also very good, and it's notable that the clock circuit is based on the DO300's, using the CK-03 architecture developed by the brand to achieve very low jitter. The DO300EX features a full range of connectors that can be adapted to numerous configurations and input sources. In addition, the exterior features a rather imposing screen and small aesthetic details, making this a pleasant-looking device.
The DO300EX incorporates an AK4499EX DAC chip coupled with an AKM AK4191 digital filter interface. This chip combo and the DO300EX's symmetrical architecture enable it to decode up to PCM 32bit 768kHz and DSD up to DSD512. They also accept MQA streams and offer a distortion level of less than 0.00006% (-124dB).
A 16-core XMOS XU316 USB interface is integrated into the DO300EX. This interface enables it to process high-resolution streams (PCM 32bit 768kHz and DSD512) via its USB-C input port. This may be ideal for users wishing to use their computer as a source device. The interface is coupled with no less than 5 OPA1612A.
A Qualcomm QCC5125 chip enables the SMSL DO300EX to support AAC, SBC, aptX, aptX HD and LDAC codecs. So you can enjoy high-resolution files in wireless transmission.
On the front of the DO300EX are two headphone outputs: a balanced 4.4mm jack and an unbalanced 6.35mm jack. The headphone amplifier circuit incorporates a TPA6120A2 chip. The DO300EX can be adapted to a lot of different types of headphones, thanks to its wide range of connectors and high output power: 2x 2000mW / 16Ω, 2x 1000mW / 32Ω.
The DO300EX's MQA decoder enables it to support MQA-CD streams via its coaxial and Toslink optical inputs. This DAC therefore offers the possibility of enjoying professional audio quality, with retransmission as close as possible to the original sound recorded and worked on in the studio.
SMSL has specially designed an ultra-low-noise regulated linear power supply for its DO300EX DAC. This is complemented by a network of several low-noise regulated power supplies, providing a stable, reliable, efficient and low-noise overall power supply system.
The DO300EX remote control provides access to all basic functions such as volume control, play/pause/previous/next functions and input source selection.
| 1 | Display |
| 2 | Bluetooth antenna |
| 3 | Volume control |
| 4 | 6.35mm jack unbalanced headphone output |
| 5 | 4.4mm jack balanced headphone output |
| 6 | Balanced stereo XLR output |
| 7 | Unbalanced stereo RCA output |
| 8 | Coaxial input |
| 9 | Toslink optical input |
| 10 | I2S input via HDMI |
| 11 | USB-C input |
| 12 | Bluetooth antenna |
| 13 | IEC power socket |
| 14 | Power switch |
Technical characteristics
| Specifications | |
|---|---|
| Product type | DAC Headphone amplifier |
| Inputs | 1x USB-C 1x Coaxial 1x Optical Toslink 1x I2S via HDMI Bluetooth |
| Outputs | 1x Stereo RCA analog output 1x XLR stereo balanced output 1x 4.4mm jack balanced headphone output 1x 6.35mm jack unbalanced headphone output |
| Supported sample rates | PCM 32bit 768kHz, DoP64, DoP256 DSD512, MQA, MQA-CD |
| Output level | XLR : 5.2Vrms RCA : 2.5Vrms |
| Headphone outputs power | 2x 2W / 16Ω 2x 1W / 32Ω |
| THD+N | XLR & RCA : 0.00006% (-124dB, unweighted) Headphone outputs : 0.0001% (-120dB, unweighted) |
| Dynamic range | XLR : 132dB Headphone outputs : 127dB |
| SNR | XLR : 132dB Headphone outputs : 127dB |
| Output impedance | XLR : 200Ω RCA : 100Ω Headphone outputs : near 0Ω |
| Heaphone outputs gain | Low : 0dB High : +7dB |
| USB transmission | 2.0 asynchronous |
| USB compatibility | Windows 7/8/8.1/9/10/11 (with driver) Mac OS 10.6 and + Linux |
| MQA decoding | MQA : USB, Optical Toslink, Coaxial MQA-CD : Optical Toslink, Coaxial |
| Supported bluetooth codecs | AAC, SBC, aptX, aptX HD, et LDAC |
| General | |
|---|---|
| Power consumption | < 20W |
| Standbye power consumption | < 0.5W |
| Color | Black |
| Dimensions | 222 x 207 x 39mm |
| Weight | 1.54kg |
| Package | 1x DAC / Headphone amplifier DO300EX SMSL 1x Mains cable 1x USB cable 1x Bluetooth antenna 1x Remote control |
| Input | SPDIF |
| Input | Bluetooth |
| Input | USB |
| Input | Optical |
| Input | I2S via HDMI |
| Output | Jack 4.4mm |
| Output | RCA |
| Output | Jack 6.35mm |
| Output | XLR |
| DAC / ADC Chip | AK4191 |
| DAC / ADC Chip | AK4499EX |
| Max sampling rate | MQA |
| Max sampling rate | 768kHz |
| Max sampling rate | DSD512 |
| Color | Black |
| Class | N/A |
| Networking | No |
| Remote Control | Yes |
We deliver all over France, and internationally.
To find out the amount of shipping costs, simply go to your cart once you have added the desired products.
To discover our different services and delivery options, click on the following logos :
Average votes 5.0 / 5 2 reviews | Why write products reviews ? You can share your feelings about products and help other people by sharing your experience |
michael c.
Benjamin R.
English 
Français