[cooljules1]

You can't use crossfeed so far, but I think that they are gonna implement It with future firmware updates. They said they were working on different kinds of features and DSP.

Sorry for the newbie question, but what exactly does the crossfeed feature do? I’m used to this term as something else i’m sure.

 

[Ferdinando1968]

Sorry for the newbie question, but what exactly does the crossfeed feature do? I’m used to this term as something else i’m sure.

Simply put, it slightly mixes the right channel signal into the left channel and vice versa.

This is to 'simulate' the type of listening that is obtained from the speakers of a stereo system, where the audio signal of the right channel reaches both the right and left ears and vice versa.

 

[cooljules1]

Simply put, it slightly mixes the right channel signal into the left channel and vice versa.

This is to 'simulate' the type of listening that is obtained from the speakers of a stereo system, where the audio signal of the right channel reaches both the right and left ears and vice versa.

Thank you for the explanation. That sounds awesome. Especially for my LCD-XC that can sometimes have a bit too distinct channel separation it feels like.

 

[DarginMahkum]

In the end, I ordered directly from the company. Anyone else did that? If yes, how long did the delivery take?

 

[Tano]

In the end, I ordered directly from the company. Anyone else did that? If yes, how long did the delivery take?

I did that. It took 1 month cause it was a pre order. But once they shipped it, it took like 4 days to arrive from Korea to Spain, so it was really fast.

 

[helloh3adfi]

How is the hiss with sensitive IEMs? Does anyone try?

The hiss with sensitive IEMs is louder than RU6.

 

[Merkurio]

The hiss with sensitive IEMs is louder than RU6.

Have you tried the standard profile with the normal output power (1V)?

This is the recommended setting for very sensitive IEMs according to Qudelix.

 

[helloh3adfi]

Have you tried the standard profile with the normal output power (1V)?

This is the recommended setting for very sensitive IEMs according to Qudelix.

I only use balanced connections. Tried normal gain.

 

[Merkurio]

I only use balanced connections. Tried normal gain.

Using balanced connection with the T71 (even with its normal gain profile, which outputs 4VRMS) is a total overkill for sensitive IEMs.

Unbalanced with normal gain (2VRMS) would be your best bet, I got to listen to a Campfire Andromeda with my Qudelix 5K a while back and didn't perceive any hiss at 1VRMS or 2VRMS.

 

[helloh3adfi]

Have you tried the standard profile with the normal output power (1V)?

Lowest T71 can go is 2V, can't it?

Unbalanced with normal gain (2VRMS) would be your best bet, I got to listen to a Campfire Andromeda with my Qudelix 5K a while back and didn't perceive any hiss at 1VRMS or 2VRMS.

Won't the soundstage decrease using SE instead of balanced?

 

[Tano]

Won't the soundstage decrease using SE instead of balanced?

No. That's a nonsense audiophile myth. The soundstage depends of the recording and the headphones. It has nothing to do with the source being balanced or not.

 

[bahamot]

Latest firmware 1.3.0 added Active Ground on 4.4mm. Anybody knows what it does?

 

[Ferdinando1968]

Latest firmware 1.3.0 added Active Ground on 4.4mm. Anybody knows what it does?

It may have to do with what is written below
(from the QUDELIX forum).

 

[DarginMahkum]

Won't the soundstage decrease using SE instead of balanced?

As also @Tano mentioned, it is a myth. In most cases where the SE output is technically as good as the balanced output, there is absolutely no reason to use balanced output for an IEM. I would even go one step further and say it is a bad idea, as the balanced output impedance is often larger than the SE output. Especially with low impedance IEMs, the impedance curve of the IEM will act like an EQ on the sound, as IEMs especially multi driver IEMs have wildly varying impedance depending on the frequency.

I see sometimes people using balanced output with high gain with 2-5 ohm IEMs and complain about the hiss, which is ridiculous. Actually most ridiculous part of this is that a company can release a 2 ohm IEM an sell it for thousands with a balanced cable. If you compare it to the balanced output impedance of, for example SP3000, which is 1.6 ohms, one can realise how ridiculous it is. In my book, an IEM with such a low impedance is an unfinished product with incompetent developers.

 

[rlw6534]

In most cases where the SE output is technically as good as the balanced output, there is absolutely no reason to use balanced output for an IEM.

I guess one question is whether or not the SE output is "technically as good" with a lot of focus being placed on the balanced output these days, especially from the popular brands...