[pouni]

Whether mode 3 or mode 4 is correct, difficult to say in this situation, we would know when testing DSD transfers.

Why? Is the signal LRCK only used when DSD is used? How could I test a DSD transfer? Could I find some test DSD files and use them with a DSD player? To be hones I do not have any knowledge about DSD…

 

[sajunky]

Why? Is the signal LRCK only used when DSD is used? How could I test a DSD transfer? Could I find some test DSD files and use them with a DSD player? To be hones I do not have any knowledge about DSD…

While PS Audio standard is widely accepted for PCM transfers, DSD has been added later, so more combinations. Attached is a typical pin assignment showing DSD lines as well, taken from Audio GD equipment. Yes, DATA becomes DSD Left channel and LRCK becomes DSD Right channel.

You can use your PCM samples for testing DSD with Foobar 2000 with SACD add-on. Inside a package there is DSD Processor installed separately, you need both. Then you can use DSD Processor to convert your samples to DSD64 real time.

 

[ekjellgren]

Does it matter if I use a USB 2.0 or a USB 3.0 cable to the DAC?

 

[pouni]

The Pegasus has only a USB 2.0 type b socket.

 

[ColSaulTigh]

The Pegasus has only a USB 2.0 type b socket.

Correct.

Also, I may need to steal that graphic...

 

[sajunky]

Does it matter if I use a USB 2.0 or a USB 3.0 cable to the DAC?

Yes. I suggest to use 2.0 cable, so there is no interference from separate super-speed wires. Use USB 2.0 output ports if available or USB 2.0 hub. If a hub can be powered from the external power supply, it also brings a benefit of redirecting ground loops.

 

[Zaurux]

This does not prevent it from being connected to a computer or a streamer with a USB3-A socket (like Neo Stream.. for eg.)

 

[MaxA]

Does it matter if I use a USB 2.0 or a USB 3.0 cable to the DAC?

No, just use the good cable, not for printer )

 

[pouni]

This does not prevent it from being connected to a computer or a streamer with a USB3-A socket (like Neo Stream.. for eg.)

True. But you can not use it with a real USB 3.0 cable because a USB 3.0 cable does not have a fitting plug for the Pegasus‘ socket. You can use a USB 2.0 cable and connect it to a USB 3.0 socket of a PC.

 

[ekjellgren]

The Pegasus has only a USB 2.0 type b socket.

Thanks, I couldn't find this information in the manual.

 

[pouni]

The one thing I'll add is you should *NOT* connect both XLR *AND* RCA outputs at the same time. Causes the voltage to drop and can impact output performance.

Hi, I am considering to add a second amplifier with tubes to my setup, maybe the Bottlehead Mainline or the Eufonika H22M+KPCU. If I attach one of these tube amps to the RCA output of the Pegasus and I make sure that at any time only one of the amps is turned on, would this be OK? Or would I have to add some kind of switch box to physically disconnect one of the amps at any time? Is there any good solution for this?

 

[sajunky]

If I attach one of these tube amps to the RCA output of the Pegasus and I make sure that at any time only one of the amps is turned on, would this be OK? Or would I have to add some kind of switch box to physically disconnect one of the amps at any time? Is there any good solution for this?

A1. Not
A2. Yes
A3. There are switch boxes, I don't need.

 

[ColSaulTigh]

A1. Not
A2. Yes
A3. There are switch boxes, I don't need.

Correct.

I do not have any experience with switch boxes, but I'm sure others do. You want something that PHYSICALLY disconnects the circuit, not electronic switching...

 

[anjaudiofile]

A1. Not
A2. Yes
A3. There are switch boxes, I don't need.

Would this also apply if using my EQ - Schiit Lokius. I have XLR input and both the XLR and RCA output running out of this device. Is this degrading sound quality?

 

[sajunky]

I do not have any experience with switch boxes, but I'm sure others do. You want something that PHYSICALLY disconnects the circuit, not electronic switching...

Better boxes should be based on relays, then switching is done physically. Whether ground wire is disconnected as well can be tested with multimeter, important to cut ground loops from the unused device.

Would this also apply if using my EQ - Schiit Lokius. I have XLR input and both the XLR and RCA output running out of this device. Is this degrading sound quality?

I don't know Lokius, an active pre-amp with separate buffers should do. For the best result look for a discrete class A non-feedback design or tubes.