Location: France
Posts: 147
I'm allo.
Hi All,
I received a Kali + Piano 2.1 DAC just this morning. Initially, I used Moode 3.0 which worked quite well but AFAIKS it doesn't yet have a setting to run the two chips on the Piano DAC. So I reluctantly installed Volumio 2 on a micro SD card and powered the system up.
I'm comparing it directly (using an A/B switch) to an Audiophonics V1 es9023 DAC board with the XO clock option running on a Pi2B
Music material currently is Daniel Lanois / Acadie streamed from a NAS and from various 320kbs Spotify files.
My initial impressions where a little disappointing in that both DACs sounded pretty much the same. I rechecked everything and noticed that I had a power supply on the KALI - AND - on the Pi which is a no-no. (I hadn't read the instructionsthe good news is that the Pi survived the over powering or maybe it has some sort of protection... anyways, don't do that, only power the KALI with a good 5V/3A PSU which will in turn supply clean power to the Pi.). I had to restart the Pi several times before Volumio would load. I think that also caused some confusion on my part. Somehow, I thought that the Pi wasn't getting any power
...
I'm not sure that this mistake made much of a SQ difference. With the proper power configuration it was still pretty close to the Audiophonics combo. So, I'll just let some more music through it for some hours hoping it would "warm up" a little....
And indeed, several hours later, it's becoming quite evident that the sound stage on the KALI / Piano2.1 combo has something going. It seems to be much better defined with a very "spacial" feeling to it. I'm not sure it's because of the settle in period or because I'm just getting used to the new sound(stage) ? but it is quite easy to make out.
More to come ...
Greetings
Ru
Ultrafide U500DC power amplifier - Croft Vitale )highly modified) - TRIO L-07D Turntable - Denon DL103C1 - Funk Firm Houdini - Lentek MC head amp - 15" Tannoy Monitor Gold Loudspeakers in Lockwood Major cabinets (From Trident Studios) - Tannoyista SPEC 3 Custom Crossovers - VanDamme Black Speaker Cable
Tannoyista.com - Audio Equipment Reviews
Sounds positive, Rupert.
Arrgh! - lol, glad it survive but next time 'read the manual'.... lol
The stage is the thing that is seemingly expanding in my case. No loss of anything, everything is snappy and clear and the bass is bonkers sometimes. lol - Makes me grin, even when I'm doing my ironing. lol which is always good![]()
Ultrafide U500DC power amplifier - Croft Vitale )highly modified) - TRIO L-07D Turntable - Denon DL103C1 - Funk Firm Houdini - Lentek MC head amp - 15" Tannoy Monitor Gold Loudspeakers in Lockwood Major cabinets (From Trident Studios) - Tannoyista SPEC 3 Custom Crossovers - VanDamme Black Speaker Cable
Tannoyista.com - Audio Equipment Reviews
Location: France
Posts: 147
I'm allo.
Hi to all.
Funny nick names that our Capacitance Multiplier board is getting
odd board ; capacitance thingy hehe
yes, the CM board filters the noise and ripple generated by the 19V power supply for the VOLT amp to negligible levels.
i just wanted to clarify that the 19V power supply feeds only the AMP... you still need a 5V PSU for the KALI.
Location: France
Posts: 147
I'm allo.
Location: KY - Scotland
Posts: 5,509
I'm Mike.
Rupert, make sure you check the alsamixer settings by SSH into the Pi and turn the analogue outputs up to max and make sure you have the digital output at your preferred setting too. Mine is set at 0db currently. But I have previously run it at -3db.
If these are set right then you'll find a decent jump in output quality.
+1
Ultrafide U500DC power amplifier - Croft Vitale )highly modified) - TRIO L-07D Turntable - Denon DL103C1 - Funk Firm Houdini - Lentek MC head amp - 15" Tannoy Monitor Gold Loudspeakers in Lockwood Major cabinets (From Trident Studios) - Tannoyista SPEC 3 Custom Crossovers - VanDamme Black Speaker Cable
Tannoyista.com - Audio Equipment Reviews
Hi Mike,
Where do I do that ? I get these values with the amixer command. Do I have to edit a file ?
thanks
rupert
volumio@volumio:~$ amixer -c 0 contents
numid=3,iface=MIXER,name='PCM Playback Route'
; type=INTEGER,access=rw------,values=1,min=0,max=2,step=0
: values=1
numid=2,iface=MIXER,name='PCM Playback Switch'
; type=BOOLEAN,access=rw------,values=1
: values=on
numid=1,iface=MIXER,name='PCM Playback Volume'
; type=INTEGER,access=rw---R--,values=1,min=-10239,max=400,step=0
: values=-2000
| dBscale-min=-102.39dB,step=0.01dB,mute=1
numid=5,iface=PCM,name='IEC958 Playback Con Mask'
; type=IEC958,access=r-------,values=1
: values=[AES0=0x02 AES1=0x00 AES2=0x00 AES3=0x00]
numid=4,iface=PCM,name='IEC958 Playback Default'
; type=IEC958,access=rw------,values=1
: values=[AES0=0x00 AES1=0x00 AES2=0x00 AES3=0x00]
Location: KY - Scotland
Posts: 5,509
I'm Mike.
Ah, don't use Volumio so I'm not sure, sorry