TOPPING D70 Balanced DAC 2x AK4497 XMOS XU208 I2S 32bit 768kHz DSD512 Black

TOPPING D70 DAC 2x AK4497 XMOS XU208 AK4118 32bit 768kHz DSD512
The DAC Topping D70 features many refinements specific to a high-end audio product. Powerful chips, ultra-low jitter clocks, latest generation interfaces and great versatility, this converter offers exceptional audio reproduction, characterized by magnificent transparency and rich sound.

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Topping D70

DAC 2x AK4497 XMOS XU208 AK4118 32bit 768kHz DSD512

Topping D70 DAC 2x AK4497 XMOS XU208 AK4118 32bit 768kHz DSD512

The DAC Topping D70 features many refinements specific to a high-end audio product. Powerful chips, ultra-low jitter clocks, latest generation interfaces and great versatility, this converter offers exceptional audio reproduction, characterized by magnificent transparency and a beautiful sound richness while offering practical features.

Topping D70 DAC 2x AK4497 XMOS XU208 AK4118 32bit 768kHz DSD512

DAC 2x AK4497 & Accusilicon Clocks

The AK4497 DAC chip from AKM is the brand's current flagship, allowing efficient and accurate decoding. Thus, the D70 integrates a pair of this DAC, each being associated with a channel for better separation of these. These chips allow it to reach a THD+N of -116dB and a dynamic range of 131dB. In addition, these chips support high sampling rates, allowing you to enjoy your PCM files up to 32bit 768kHz and DSD up to DSD512 Native.

These AK4497 DACs are combined with a pair of AccuSilicon 45.1584MHz and 49.1520MHz high-end femtosecond clocks. These allow a perfect synchronization of the data signals for an impressive jitter attenuation.

Connectivity & Features

With its many features and connections, the Topping D70 can be integrated into the vast majority of audio systems, offering many options for use and installation. On the input connector side, the device offers AES/EBU, Coaxial SPDIF, Toslink Optics, USB and I2S LVDS via HDMI. Note that this last input has several selectable modes, in order to adapt to your other I2S LVDS devices. The output includes balanced XLR and single-ended RCA. The D70 allows you to select the output so that you can send the audio stream only to one or both of them at once.

The D70 also acts as a preamplifier since it includes a volume controller with attenuation from -99dB to 0dB. However, this volume control function can be disabled so that the D70 can only be used as a DAC with output levels constantly at their maximums, i.e. 4Vrms for XLR output and 2Vrms for RCA output.

Topping D70 DAC 2x AK4497 XMOS XU208 AK4118 32bit 768kHz DSD51213872-topping-d70-inpage1-jpg.png

USB XMOS XU208 & SPDIF AK4418 Interfaces

Once again, on the side of its digital interfaces Topping chooses quality and performance by integrating high-end chips into its D70. For the USB interface, we find an XMOS XU208 chip supporting high sampling rates up to 32bit 768kHz in PCM and up to DSD512 Native. For SPDIF signals, an AK4118 chip does the job by providing the lowest jitter on the market for this type of interface. This chip is therefore used for the Optical, Coaxial and AES inputs and allows sampling rates of 24bit 192kHz to be achieved for the latter.

Topping D70 DAC 2x AK4497 XMOS XU208 AK4118 32bit 768kHz DSD512

An incredible quality circuit

While the conversion and interface chips integrated into the D70 represent the best that is currently being done, the rest of the circuit is not to be outdone. For example, the PCB contains 4 Nichicon FW 3300µF capacitors as power reserve for the AK4497 and 8 Nichicon Muse capacitors for coupling the output signals. The output circuit is composed of a series of 3 AOP LME49720, high precision Vishay resistors and WIMA capacitors for excellent performance. The power supply circuit, on the other hand, incorporates ultra-low noise low voltage drop (LDO) linear regulators TPS7A4701 and TPS7A3301. This manufacturing quality allows the D70 to offer a breathtaking sound reproduction, with incredible precision, richness and depth.

Topping D70 DAC 2x AK4497 XMOS XU208 AK4118 32bit 768kHz DSD512

Remote control

Topping D70 DAC 2x AK4497 XMOS XU208 AK4118 32bit 768kHz DSD512
1Standby button
2Volume +
3Previous input
4Volume -
5NC
6Filter selection
7Automatic standby
8Mute mode
9Output mode selection
10Next input
11NC
12NC
13Screen brightness setting

Dimensions

Topping D70 DAC 2x AK4497 XMOS XU208 AK4118 32bit 768kHz DSD512

Test Audio Science Review

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Technical characteristics

Specifications
Product typeDAC
DAC Chip2x AK4497
USB InterfaceXMOS XU208
SPDIF InterfaceAK4418
Inputs1x I2S LVDS (HDMI)
1x Optical Toslink
1x USB-B
1x Coaxial SPDIF
1x AES/EBU
Supported sampling ratesUSB : PCM up to 32bit 768kHz / Native DSD up to DSD512 / DSD DoP up to DSD256
I2S : PCM up to 32bit 768kHz / DSD up to DSD512
Coaxial, Optical, AES : PCM up to 24bit 192kHz
Outputs1x Balanced XLR
1x Single-Ended RCA
THD+NRCA : <0.0004% @ 1kHz A-Weighting
XLR : <0.0004% @ 1kHz A-Weighting
SNRRCA : >118dB @ A-Weighting
XLR : >127dB @ A-Weighting
Frequency responseRCA : 20Hz - 20kHz (+/-0.9dB)
XLR : 20Hz - 20kHz (+/-0.9dB)
Voltage outputRCA : 2Vrms @ 0dBFS
XLR : 4Vrms @ 0dBFS
NoiseRCA : <2.4µVrms
XLR : <1.8µVrms
CrosstalkRCA : -128dB @ 1kHz
XLR : -137dB @ 1kHz
General
Power supplyAC110V/AC220V 50Hz/60Hz (switchable) via IEC (cable included)
Case materialAluminium
Dimensions25 x 19.5 x 5cm
Weight1.9kg
ColorBlack
Package1x Topping DX70
1x IR Remote Control
1x USB Cable
1x Power cable
1x User manual
1x Warranty card
Output modes
Output modeDisplayRCA OutputXLR OutputAdjustable volume
RCA--> RCA
XLR--> XLR
RCA + XLR--> R+X
DACDAC
PreamplifierVolume display
Brightness modes
OptionIntensity
LLow
MMedium (Default)
HHigh
PCM Filters
DisplayFilter
Mode1Sharp Roll-Off
Mode2Slow Roll-Off
Mode3Short Delay Sharp Roll-Off (Default)
Mode4Short Delay Slow Roll Off
Mode5Super Slow Roll-Off
Mode6Low Dispersion Short Delay
DSD Filters
DisplayFilter
Mode139kHz (Default)
Mode276kHz
Topping D70 DAC 2x AK4497 XMOS XU208 AK4118 32bit 768kHz DSD512
Topping D70 DAC 2x AK4497 XMOS XU208 AK4118 32bit 768kHz DSD512
Topping D70 DAC 2x AK4497 XMOS XU208 AK4118 32bit 768kHz DSD512
Topping D70 DAC 2x AK4497 XMOS XU208 AK4118 32bit 768kHz DSD512
Topping D70 DAC 2x AK4497 XMOS XU208 AK4118 32bit 768kHz DSD512
Topping D70 DAC 2x AK4497 XMOS XU208 AK4118 32bit 768kHz DSD512
 
Data sheet
InputOptical
InputUSB-B
InputUSB XMOS
InputSPDIF
InputI2S via HDMI
InputUSB 2.0
InputXLR
OutputRCA
OutputXLR
DAC ChipAK4497EQ
Max sampling rateDSD512
Max sampling rate768kHz
ColorBlack
Channel2 channels (Stereo)
 
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Average votes
4.7 / 5
10 reviews
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Note :
 5/5
Date :
Ottimo Prodotto
Il Prodotto è ottimo! La componentistica è di livello alto, il suono è molto neutro. A me ha soddisfatto appieno!
 (0)
 (0)
This review has been posted for TOPPING D70 Balanced DAC 2x AK4497 XMOS XU208 I2S 32bit 768kHz DSD512 Black
Note :
 4/5
Date :
Almost perfect
This is my first external DAC. I bought it to replace the HT Omega Claro Halo XT and Asus Xonar ST PCI sound cards (both upgraded with AD797BRZ and BBOPA627AU opamps). The D70 technically works correctly and very nice. Turns on with the computer (USB) or TV (optical), shuts down a minute after shutting down the computer or TV (you can actually disable this), runs cool, transition between tracks with different frequencies/bitrate/format is completely flawless and silent (Foobar2000), quiet and fast relays, it has nice display that doesn't bother in the dark at all. Feels robust as if made to last. The Topping USB driver also works good for now. It shows that this is a dac version 1.04. The only thing related to the driver and worth to mention is that if you want to upsample/convert PCM to DSD, DO NOT convert to DSDxx/48Khz format or you risk some serious damage to your gear and your hearing.
Seriously. Lot of noise and crackling will be generated and pass through the driver. So be warned! I guess the D70 obviously do not support DSDxx/48, only DSDxx/44. At least not using Foobar2000 with SACD/DSD processor or ASIO Proxy plugins (various versions). Anyway, after some serious blind tests with various PCM files (natively and converted to DSD), I am definitely sure that PCM actually sounds best if played natively.
And now something (subjective) about the sound of this dac. I am using it connected via the little Chinese tube preamp (similar to FX-Audio Tube-03) that uses a pair of Voskhod 6J1P-EV tubes and a single dual NE5532 opamp on the board.
The preamp is connected to the Fase Performance 3.5 integrated amp which serves a pair of Dali Zensor 5 speakers + SVS SB-1000 sub. The sound of my previous setup including my sound cards is really tube like. Warm, soft, spacious, with very nice sonic controlled bass, everything floats, pretty exciting sound you can listen for hours. As I can see from the D70 board pics, there are three L49720NA opamps on the output soldered. One for the RCA path and two for the balanced output paths. Unfortunately they are not on sockets so not interchangeable easily without soldering and warranty void.
I am not really a fan of these opamps due to their very analytical and somewhat dry sound with a low emphasis on the bass (my experiences with these opamps and my sound cards).
So I was wandering if putting the D70 into my gear chain will produce some unpleasantly surprise. And an unpleasant surprise happened :-( The sound was pretty much what I thought it could be using 49720NA on the output stage. The magic collapsed. Yes, there were some new qualities such as more details and better highs that this dac provided compared to the sound cards, but velvet sonic warm heaven on the Earth tube bass has gone and the stage depth narrowed. Instead there was a dry and thumpy unexciting bass. A real disappointment and I was allready preparing in my head it's boxes to send it back on the day one. Because changing the RCA output opamp to something much better was not the option, got the idea to change the opamp (NE5532) in my tube preamp to something from the sound cards and to hope that maybe, but just maybe the magic could somehow return.
Believe me or not, when I changed the NE5532 in my little tube preamp to the BBOPA627AU, the magic came back over the big door. Seriously. The magic of all that warm velvet tube like soul touching bass sound came back. But this time with noticeably better vocals and highs. This is something BBOPA627AU obviously do and it is a real shame the D70 doesn't have easily replaceable opamps. So, there is a light appeared at the end of the tunnel. Finally no more obsolete PCI slots and outdated sound cards. This dac actually gives a lot, it just needs to be paired with the right equipment that can harness the potential. As soon as the warranty is over, I will definitely modify it's opamps.
 (1)
 (0)
This review has been posted for TOPPING D70 Balanced DAC 2x AK4497 XMOS XU208 I2S 32bit 768kHz DSD512 Black
Note :
 5/5
Date :
super
l'entrée USB n'est pas terrible,mais avec une interface Mutec (USB vers AES),ça devient franchement imbattable,avec,contrairement à un avis précédent,des graves extrêmement présents et percutants.Peut-être une dynamique demandant plus de temps pour s'installer?
Auralic Aries Mini-mutec-Topping D70-Hattor intégré-Audio Physic Scorpio II
 (2)
 (0)
This review has been posted for TOPPING D70 Balanced DAC 2x AK4497 XMOS XU208 I2S 32bit 768kHz DSD512 Black
Note :
 3/5
Date :
Manque de punch
J'ai acheté ce dac pour peut-être remplacer mon Gustard A20H, qui possède également deux puces AKM AK4497.

Le Topping D70 est légèrement moins brouillon, avec une meilleure séparation des instruments, en revanche le Gustard est plus dynamique, la scène sonore est un peu plus large, et est bien plus agréable à écouter. A noter aussi que sur le D70, les basses sont assez peu présentes, j'ai trouvé ça assez étrange, peut-être qu'il aurait fallu plus d'heures de rodage ? (Bien que j'ai un peu de mal à croire au rodage pour les dacs).

Pour ces raisons-là j'ai renvoyé le Topping.
 (1)
 (1)
This review has been posted for TOPPING D70 Balanced DAC 2x AK4497 XMOS XU208 I2S 32bit 768kHz DSD512 Black
Note :
 5/5
Date :
WOW!
Have tried many dac,s including Naim and Arcam D33.
Topping D70 is absolutely the best!
 (2)
 (1)
This review has been posted for TOPPING D70 Balanced DAC 2x AK4497 XMOS XU208 I2S 32bit 768kHz DSD512 Black
 
TOPPING D70 Balanced DAC 2x AK4497 XMOS XU208 I2S 32bit 768kHz DSD512 Black
The DAC Topping D70 features many refinements specific to a high-end audio product. Powerful chips, ultra-low jitter clocks, latest generation...

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