CHORD ELECTRONICS DAVE

[icnaiwhimor1975]

As a general rule in audio land, you want to turn off everything you can that you dont need, example EQ, in this case HF filter. Anything you do to the sound is doing somethign to it, It's best to leave it in as pure a form as possible with the least amount of conversions/processes/etc. The only thing I've ever found in over 11 years in this hobby that I added to sound that didn't make it worse was Chord's Crossfeed implementation in Hugo2 and Dave. I appreciate the sharper images, larger images even if they are closer, better separation, etc.

I think it's the other way around - if you turn on the crossfeed, the scene becomes smaller, I like the sound better with the crossfeed turned off

 

[ObjectiveSubjectivist]

For all the folks that like crossfeed.
Try listen to mono (use something like apo or probably Roon has option to mix to mono), I've found it to project freakin amazing depth, alas it's placed inside your head but the effect is really something with right recording.

 

[GuiltyRocker]

I tried Crossfeed and perhaps my headphones are not good enough, I have so much stage depth and width with my speakers, that Crossfeed just doesn't cut it for me.

 

[icnaiwhimor1975]

I tried Crossfeed and perhaps my headphones are not good enough, I have so much stage depth and width with my speakers, that Crossfeed just doesn't cut it for me.

crossfeed is just an effect
there is a camp of those who like it
there are those who don't
I am also one of those who listen without it
and I also don't turn on the high-pass filter
just like that, just in case))

 

[GuiltyRocker]

crossfeed is just an effect
there is a camp of those who like it
there are those who don't
I am also one of those who listen without it
and I also don't turn on the high-pass filter
just like that, just in case))

Are you using a DAVE?

 

[icnaiwhimor1975]

Are you using a DAVE?

yep

 

[GuiltyRocker]

yep

What is the reason you don't use the high frequency filter? Do you hear a deterioration of the music when it's on?

 

[icnaiwhimor1975]

What is the reason you don't use the high frequency filter? Do you hear a deterioration of the music when it's on?

I don't hear any difference
but I think if there is no difference, then there is no point to use it

as far as I know this filter cuts high frequencies far beyond the limits of audibility
but if the developer left the option not to turn in on, why not ))

 

[GuiltyRocker]

I don't hear any difference
but I think if there is no difference, then there is no point to use it

as far as I know this filter cuts high frequencies far beyond the limits of audibility
but if the developer left the option not to turn in on, why not ))

I see your point, in the Mojo 2 I think the HF filter is always on, the idea of the filter is that high frequency noise affects the frequencies that are in the audible range, creating issues. The aliasing that carries on in the ultra sonic frequencies affect the analog circuitry and potentially the amplifier as well.

 

[icnaiwhimor1975]

I see your point, in the Mojo 2 I think the HF filter is always on, the idea of the filter is that high frequency noise affects the frequencies that are in the audible range, creating issues. The aliasing that carries on in the ultra sonic frequencies affect the analog circuitry and potentially the amplifier as well.

after your message it might make sense to turn it on)

 

[Reactcore]

Pity i cant understand his language.. but its fun to watch this review none the less:



I wonder what he has to say about Dave

Update on the Choral battery:
New charge and Ledmeter PCB's arrived and one Choral housing is being CNC'ed with laser engraved texts. Cant wait to get my hands on it

 

[GuiltyRocker]

ilter On because M-scaler passes

Pity i cant understand his language.. but its fun to watch this review none the less:



I wonder what he has to say about Dave



Update on the Choral battery:
New charge and Ledmeter PCB's arrived and one Choral housing is being CNC'ed with laser engraved texts. Cant wait to get my hands on it

I think Rob may buy one from you

 

[icnaiwhimor1975]

I think Rob may buy one from you

maybe not only))

 

[Rob Watts]

I see your point, in the Mojo 2 I think the HF filter is always on, the idea of the filter is that high frequency noise affects the frequencies that are in the audible range, creating issues. The aliasing that carries on in the ultra sonic frequencies affect the analog circuitry and potentially the amplifier as well.

Just to clarify, the HF filters implemented before Mojo 2 was a 2nd order simple filter - equivalent to two RC type filters - and so it had a significant drop at 20kHz of around -0.9dB. Measurement people could complain about that drop, so I made it switchable. With Mojo 2's UHD DSP I can have an aggressive HF filter without any drop in frequency response at 20kHz, so it would remain "perfect" from a measurement POV. The sound quality benefits of bandwidth limiting is substantial, due to reduced noise floor modulation from the random HF content from HD recordings, and as you mention from reducing image aliasing artifacts.

 

[GuiltyRocker]

maybe not only))

Just to clarify, the HF filters implemented before Mojo 2 was a 2nd order simple filter - equivalent to two RC type filters - and so it had a significant drop at 20kHz of around -0.9dB. Measurement people could complain about that drop, so I made it switchable. With Mojo 2's UHD DSP I can have an aggressive HF filter without any drop in frequency response at 20kHz, so it would remain "perfect" from a measurement POV. The sound quality benefits of bandwidth limiting is substantial, due to reduced noise floor modulation from the random HF content from HD recordings, and as you mention from reducing image aliasing artifacts.

Perfect, thanks Rob I appreciate the explanation.