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Topping DX3 Pro LDAC Version 2 DAC/Amp
01 / 05
Topping DX3 Pro LDAC Version 2 DAC/Amp
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428 Sold
Product Description
New from Topping, an industry leader in professional-grade audio equipment, the DX3 Pro LDAC Version 2 DAC/amp is a next-generation audio solution for your desk. Equipped with much of the same hardware that made the original DX3 Pro so popular—an XMOS XU208 USB chip with dual AK4493 DACs, an OPA1612 op amp, and an AK4118 receiver—this version adds LDAC connectivity for high-resolution listening over Bluetooth 5.0 Read More
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keyboard_arrow_downNewType88
88
Aug 11, 2019
I have a THX 789 coming and I will be using the balanced output.
Question:
Can someone explain to me if I would be losing any benfits of using this DAC with a THX 789 vs a balanced DAC ?
Artismo
472
Sep 15, 2019
NewType88Get a Mytek Brooklyn Bridge then.
It's not the answer you wanted, but it’s the answer you needed.
LuckyLuke575
562
Aug 9, 2019
Knock on wood, my unit has been gold for the past 4 months. I'm using them with my HD 6XXs and the sound is strong and clean Bobby
Dmac6419
194
Aug 12, 2019
Radsone es100 added all kinds dudu with firmware updates,toppings full of dudu.
Dmac6419
194
Aug 17, 2019
As I understand it Sony has given ldac away for use on Android, so it's free for that
JJayJJ
472
Nov 14, 2019
My V1 has been functioning for over half a year as well for those still wondering.
thuht
1
Jan 18, 2020
Does anybody have this issue that a click-sound comes from inside the dx3pro ldac v2 device each time it's turnned on/off or switched gain mode? Just received this device and everything was fine except that annoying clicking noise.
(Edited)
Fayne
2587
Jan 19, 2020
1) I don't own it, but forums posts found via google search of "DX3 Pro Relay" show you aren't the only one. :)
2) No way around the click of the mechanical relay. The only thing that can be done is for the manufacturer to pick relays that are quieter. But this requires experience with many types of relays, or a lot of trial and error during development.
3) Yes, other brands make the relay click. My MassDrop LCX, MassDrop THX 789, MassDrop CTH, Loxjie P20, and xDuoo TA-20 amps all relay click at power on, and most of them at power off. My SMSL M500 gives relay clicks when changing output interfaces. It is super common. Even the DIY amp designs I've built for fun all had options for adding relay based protection circuits.
The simplest explanation is that mechanical relays of the Normally Open (NO) type are the easiest way to provide power on and off protection for headphones and line interfaces. It keeps the inrush surge at power on from potentially damaging the headphones by not being connected until ordered to by the controller/timer, and in a lot of cases is also used as part of the DC offset protection circuits which protect the drivers in headphones from being destroyed by stray DC current. Additionally, these types of relays will immediately pop into an open state when they lose power. This protect headphones and speakers from the power off thump/thud which can blow drivers in one glorious blast of noise.
A lot of times for things with multiple input or output interfaces will use a latching relay to enable the interface. These types of relays are able to stay in the set position between power cycles and only need to be toggled when changing input or output. These are typically used when they don't want to add multiple output amplification stages to save on cost, but want to give the ability to have multiple interfaces of varying termination style. Sometimes bad designs will use regular relays for this stuff, which need to be toggled every time they power up.
Wikipedia has a somewhat in-depth article on how relays operate, if you're curious.
Edit: Forgot to mention, the main reason relays are used instead of mosfets, jfets, or bipolar junction transistors is because of the electrical isolation provided by a non-connected relay. If I electrofry a circuit that is using solid state switching methods, everything connected is done-for, even if it wasn't actively selected. They can get around this with optocouplers, but they're hard to work with properly, and will still happily fry connected gear depending on where the hardware failure happens (if it is on near or far side of the optocoupler/isolater).
I learned to love the sound of a click, as it means my gear is less likely to be destroyed.
(Edited)
Kionce
98
Sep 30, 2021
Wait, this isn't the new DX3 Pro+ that was just announced? The new version is twice as powerful at $199...
TOPPING DX3pro+ Bluetooth 5.0 LDAC ES9038Q2M DSD512 DAC NFCA Headphon (shenzhenaudio.com)
Edit: also they also offer free shipping worldwide
(Edited)
Kionce
98
Oct 2, 2021
By V2 do you mean DX3 Pro without the "+"? DX3 Pro+ is better in everyway (more than twice as good in certain aspects), so unless you can get the discontinued "V2" at a significant discount, you should get the DX3 Pro+.
Here Drop is selling the V2 at a even higher cost (including shipping to my country) than the DX3 Pro+.
wordfool
118
Dec 3, 2019
Wish they hadn't increased the output impedance to 10 ohms. On the previous version it was <1 ohm
Hueston
128
Dec 13, 2019
wordfooli wish they sold the v1 still. specs were much higher and practically no one cares for ldac support.
verifonix
1181
Dec 16, 2019
HuestonThe v1 had an issue with the amps eventually shorting out on many units, that's why they had to revise it with unfortunately raising OI
Huntsa
11
Oct 10, 2019
These new v2 specs look really bad for the headphone output.
Channel balance: 0.5dB
Channel crosstalk: -70dB
Output impedance: <10 ohms
THD+N is also worse at 0.0006% as opposed to 0.0004% with v1.
ksafari
5
Jul 6, 2020
I finally got mine, after waiting the month for it, having it be delayed (which is fine given the circumstances of the world), having drop not tell me it's going to be late until it's already late (which is not fine), then a couple weeks later it arrives... with the wrong plug. I'm sure it's a wonderful product, but I am guessing I will be waiting another couple weeks to get the right plug for it... wish I'd not saved the $30 or whatever buying it from drop, and had just gotten it from amazon in hindsight.
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