Questions about Audioengine D1 24-Bit Dac

Ouch, we will have this corrected immediately! Thanks for the hint

As a test, I attached headphones with 50, 250 and 300 ohms - unfortunately I don't have more to choose from. Conclusion: 300 ohms can be used without any problems, but there is not much room for improvement in volume. I could therefore imagine that the D1 would sound a bit quiet and flat with 600 Ohm headphones.

You need an additional power supply via USB.

How did you connect the thing? Notebook, PC? I'm guessing a hum loop, but it's hard to tell from a distance. For starters, if it's a notebook, does the noise persist when you switch everything to battery mode?

The USB cable is included so that the transducer can be connected to the PC. That's all you need. Matching headphones have a jack plug to connect them to the amplifier. The scope of delivery is correctly described in the specifications. The USB cable is listed there.

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Hello, These are RCA-Cinch cables that you can find on this Digitec link: https://www.digitec.ch/fr/search?q=cable%20cinch Male connectors on the Audioengine D1 and normally also male on the target (loudspeakers) to check at home.

in my opinion, the two analogue stereo cinch outputs should be connected to the aux in the system. i had only connected headphones to the headphone output.

In the system settings of the operating system, the volume fully up? Which resistance version of the DT990 Pro do you have? For me, too, the volume is only just sufficient. The tool "Hear" - Prosoft is the developer, if I remember correctly - brought me relief and generally fuller sound. Also note that the D1 has a certain break-in time - I would say between 50 and 80 hours of playing time - during which it becomes significantly louder. However, it should not be quieter than the normal jack socket of the PC, even at the beginning.

No, if headphones are connected, the other output is deactivated.

Ah, now I understand. It works for me when connected directly to the USB. According to the instructions, it is possible to operate the unit with Toslink as input and USB as power source for the signal amplification. A USB cable is included, but you still have to get a USB power adapter. KG

According to the following assessment, this is possible: https://www.digitec.ch/de/s1/ProductRating/guter-dacamp-199777

As has already been said, a DAC does the opposite of what you describe. Your PC already has a DAC built in. The question is how good it already is. In most cases it makes a very big difference, as long as you connect good speakers or headphones. If you only have Logitech speakers, then even the internal DAC is too bad. Think of it this way: If you're serious about graphics or you're a gamer, you'll buy a graphics card instead of using the CPU's graphics unit. If you want to enjoy decent sound, you do the same with sound. Depending on the headphones, internal sound units do not have the power to operate them. You then need a sound card, which you can't install in a laptop. That is why this USB DAC is offered.

I have never tried it myself. Only a USB-A to USB-B cable is included in the delivery. However, I am not aware that this is possible at all with the iPod. The iPod already has a relatively good D/A converter. With the iPad (iOS 7 or higher), as far as I know, it should work via the Lightning to USB adapter and a hub with power supply. More info e.g. here: http://blog.jdslabs.com/?p=838 However, I don't see this as practical (an external power source is also necessary). If it is, then a product designed for this should be considered. (There are, but I don't have an example right now...) When I want to enjoy music, I listen to it on the PC anyway, and not on the iPod/iPhone/iPad, so unfortunately I can't help.