A portable cable DAC is new territory for Astell & Kern – the company is most renowned for its portable music players but also makes headphones and desktop audio systems. But digital-to-analogue conversion technology is something the company is well versed in. And that shows.

SFP+passive copperdirect attachcable provides a direct electrical connection interface between the two ends of the corresponding cable, and the transmission distance can reach 12m. However, due to the heavy weight of the cable and considering the signal integrity,the length of the cable is generally limited for the connection within the range of 7m to 10m. Agree with all of this. I was thinking of pulling the trigger on the Chord and was looking around the internet and I'd never heard of RME beofre, but once I'd read up on it, looked at the specs and feature list it's an absolute no brainer.Middle of Row – As long as the distance is no more than 15m, the active DAC cable may be the best solution in this application. SFP + to SFP+ DAC adopts passive dual-axis cable assemblies and is directly connected to the SFP + module . It has the characteristics of high density, low power, low cost, and low delay. SFP28 to SFP28 DAC can provide customers with 25G high bandwidth Ethernet network interconnection capability. Conforming to IEEE p802.3by Ethernet standard and sff-8402 SFP28, it is widely used in data center or Super-computing Center system scenarios. The AK HC2 features a dual shielded cable to minimize noise and deliver more vivid, original sound. AOS-CX 10.05 and later releases, the configuration requires a save and reboot of the switch or module. See the

At one end is a 3.5mm output, and at the other is a USB-C connection for plugging into any device with that output, such as an Android phone, Windows 10 PC, tablet or MacOS computer. For the bulk of our testing, we use it with a Samsung Galaxy S21 and Apple MacBook Pro. In general, the max transmission distance of passive SFP+ DAC cable is 7m. However, the active SFP+ DAC cable can reach up to 10m. Hence for application scenarios requiring more than 7m links, the active Twinax cable may be the better choice.

We are always impartial in our testing and ensure we hear every DAC at its optimum – whether it's a portable DAC for use out and about with a phone, a desktop one ideal for pairing with a laptop, or one designed to slot into a hi-fi system. We'll use them in their best use case with different partnering source kit and headphones, as well as play plenty of different types of music through them. Naturally, we give them plenty of listening time (and, before that, time to run in) too. As the long-anticipated replacement to the incredibly popular Chord Mojo, the Chord Mojo 2 is another leap forward for compact DACs. The chief change from the original release is what Chord claims is the world’s first lossless digital signal processor and we were suitably impressed with the second-generation Mojo’s mastery of detailed sound.