Does this evaluation already include the (probably) improved performance of the new LAN interface built into USBridge Sig. as opposed to the comprised LAN/USB interface of the generic RPi?
I t want to clarify the above
My opinion is based ONLY by looking at i2s test data and not on my subjective hearing .
I see a reduction in noise on i2s lines and without listening I gave my assessment .
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Any news on Nirvana? Is it a simple transformer replacement or will you have to rework the whole board.
Hi,
How about the improvements with USB signature+Katana.
Will it be a small improvement??
You could also rank the improvements of the devices..... USB out the most improv....
Thanks
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cdsgames I'm mostly a headphone person guy as i don't have the neccesary room/treatments to get good sound from speakers, but im wondering has Allo thought about making a headphone amp in maybe the 100-250$ price range or is that market to saturated already with the likes of the THX, and atom amp?
On another note have you guys thought about making the revolution DAC run the sabre chip in 128fs mode, and maybe add custom digital filters?
On another note have you guys thought about making the revolution DAC run the sabre chip in 128fs mode, and maybe add custom digital filters?
Usbridge Sig /Audiphile SBC has everything optimized .
Since USB and Ethernet are "off the IC" , we implemented our own solution .
Please understand that I took the decision to only comment on what I can see in my test data , not on my subjective experience .
I will let the others give theire opinions on whats improved in terms of sound.
Nanekiu , Revolution runs . of course , in 128fs mode. I think thats a must in terms of SQ even though the change in THD+N is minor .
Headphone amp , I am looking at it.
Since USB and Ethernet are "off the IC" , we implemented our own solution .
Please understand that I took the decision to only comment on what I can see in my test data , not on my subjective experience .
I will let the others give theire opinions on whats improved in terms of sound.
Nanekiu , Revolution runs . of course , in 128fs mode. I think thats a must in terms of SQ even though the change in THD+N is minor .
Headphone amp , I am looking at it.
On another note wouldn't 80nv noise from Shanti be kind of wasted if you are using LDO's inside the dac that will limit the final noise values? or are you dropping the usage of LDO inside the dac, and just doing additional filtering?
Also will the revolution DAC also have the grounding tab or just the shanti,and usb signature.
THD
I'm afraid it will be hard to find a Power Amp with a matching level of THD. If the amp is inferior, the advantage's of low THD may be lost.
I'm afraid it will be hard to find a Power Amp with a matching level of THD. If the amp is inferior, the advantage's of low THD may be lost.
80nV or noise will be lower than most LDOs. However noise is defined in relationship to a bandwith and I never checked noise of LDOs at 0-20Khz
In the end what I have found is that lower noise PSU defnitley shows up in a DAC output. What I suspect is that most filters can even amplify noise at "resonance" and everything is a filter (usually resonance is at higher frequency) including any lenght PCB trace and a capacitor
Yes Revolution will have a earthing nut.
In the end what I have found is that lower noise PSU defnitley shows up in a DAC output. What I suspect is that most filters can even amplify noise at "resonance" and everything is a filter (usually resonance is at higher frequency) including any lenght PCB trace and a capacitor
Yes Revolution will have a earthing nut.
THD and sound quality
I think we know for 50 years that THD is not a measure of sound quality .(if its under a certain level
THD does show if a unit was properly build and engineered .
Disagree,
the source is more important than the the amp and a better source gives superior performance even when the the downstream components are inferior than the source.
Matt
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OK, got that.
Does the same logic apply to S/N ratio? I mean, if the Amp has a S/N of 90dB will a 120dB player sound audibly better than a 95dB one ?