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New Katana DAC from ALLO

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On 8/2/2018 at 3:56 AM, juliocat said:

!!!!!!!!It's working!!!!!!!!!

 

Sound it's really great even with just one LPS

20180801_190924.jpg

 

Did you power the Katana Only?

Is there an available adaptor for those built in wires in the Katana Module?

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The katana comes with a cable to connect 1 power supply, just 2 wires, one red positive one black negative to a 5 volt 3 amp power supply.


Hackintosh I7 16GB Ram, Roon, HQPlayer, Drobo 8 TB NAS, Raspberry Pi 3 NAA, Gustard X20 ES 9018 Xmos, Audio GD C39 Preamp, The First ONE DIY Amp, Monitor Audio GS20 Speakers, Monitor Audio RSW12 Subwoofer, PI Audio MagikBuss filter.

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@maxijazz @Panelhead

as of now there are 2 acrylic cases available for the KATANA

1> player (RPI + KATANA stack)

2> player + isolator ( RPI + KATANA stack + Isolator v1.2)

 

we are also working on an alu case which will take some time.

 

Currently , we are not offering XLR connectors so we cant design a case without knowing what connectors everyone uses.

As for the relay att, we can surely design it... please contact me when ready to order and will work on it.

 

As you may have seen on the site, we have released a notice :

The Katana is a complex DAC that offers multiple filtering and powering options.The pursuit of the best sound quality is what drives our design team and the reason behind our recent decision to halt manufacturing of the late KATANA.
A new version, the 1.2, is in the works and will only have a few components changed resulting in a subtle, yet necessary SQ improvement.
Please note the following:
No orders will be accepted for the next 14 days.
Already received your KATANA? A new one will be sent to you once the K1.2 is released.
Already placed an order ? You will be soon contacted by our customer support team.
Thank you for your understanding.


technically ...
We improved the LPF on summing opamp. Small improvement in SQ
We improved filtering before analog stage . Medium improvement in SQ
We improved noise escaping DC/DC convertor. Not quantified yet
We connected earthing to board (with Nirvana PSU it will be automatic). Removal of some HF and better trebles . I would say small improvement but clearly audible
Adding some 220uF caps to analog stage. No improvement


KATANA 1.2 is being finalized and ready to ship by the end of the month.

 

will update soon.

Regards

Andre

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  Good to see further development.   This will help in getting the most from this kit.


 

2012 Mac Mini, i5 - 2.5 GHz, 16 GB RAM. SSD,  PM/PV software, Focusrite Clarett 4Pre 4 channel interface. Daysequerra M4.0X Broadcast monitor., My_Ref Evolution rev a , Klipsch La Scala II, Blue Sky Sub 12

Clarett used as ADC for vinyl rips.

Corning Optical Thunderbolt cable used to connect computer to 4Pre. Dac fed by iFi iPower and Noise Trapper isolation transformer. 

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On 8/16/2018 at 1:39 AM, ALLOaudio said:

@maxijazz @Panelhead

as of now there are 2 acrylic cases available for the KATANA

1> player (RPI + KATANA stack)

2> player + isolator ( RPI + KATANA stack + Isolator v1.2)

 

we are also working on an alu case which will take some time.

 

Currently , we are not offering XLR connectors so we cant design a case without knowing what connectors everyone uses.

As for the relay att, we can surely design it... please contact me when ready to order and will work on it.

 

As you may have seen on the site, we have released a notice :

The Katana is a complex DAC that offers multiple filtering and powering options.The pursuit of the best sound quality is what drives our design team and the reason behind our recent decision to halt manufacturing of the late KATANA.
A new version, the 1.2, is in the works and will only have a few components changed resulting in a subtle, yet necessary SQ improvement.
Please note the following:
No orders will be accepted for the next 14 days.
Already received your KATANA? A new one will be sent to you once the K1.2 is released.
Already placed an order ? You will be soon contacted by our customer support team.
Thank you for your understanding.


technically ...
We improved the LPF on summing opamp. Small improvement in SQ
We improved filtering before analog stage . Medium improvement in SQ
We improved noise escaping DC/DC convertor. Not quantified yet
We connected earthing to board (with Nirvana PSU it will be automatic). Removal of some HF and better trebles . I would say small improvement but clearly audible
Adding some 220uF caps to analog stage. No improvement


KATANA 1.2 is being finalized and ready to ship by the end of the month.

 

will update soon.

Regards

Andre

 

Does the dac have galvanic isolation?

 

Also can you consider making an optional usb cable available that has a double shield?

There is a lot of talk on this site for those that DIY, that this really improves the SQ?

 

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On 8/16/2018 at 11:39 AM, ALLOaudio said:

@maxijazz @Panelhead

as of now there are 2 acrylic cases available for the KATANA

1> player (RPI + KATANA stack)

2> player + isolator ( RPI + KATANA stack + Isolator v1.2)

 

we are also working on an alu case which will take some time.

 

Currently , we are not offering XLR connectors so we cant design a case without knowing what connectors everyone uses.

As for the relay att, we can surely design it... please contact me when ready to order and will work on it.

 

As you may have seen on the site, we have released a notice :

The Katana is a complex DAC that offers multiple filtering and powering options.The pursuit of the best sound quality is what drives our design team and the reason behind our recent decision to halt manufacturing of the late KATANA.
A new version, the 1.2, is in the works and will only have a few components changed resulting in a subtle, yet necessary SQ improvement.
Please note the following:
No orders will be accepted for the next 14 days.
Already received your KATANA? A new one will be sent to you once the K1.2 is released.
Already placed an order ? You will be soon contacted by our customer support team.
Thank you for your understanding.


technically ...
We improved the LPF on summing opamp. Small improvement in SQ
We improved filtering before analog stage . Medium improvement in SQ
We improved noise escaping DC/DC convertor. Not quantified yet
We connected earthing to board (with Nirvana PSU it will be automatic). Removal of some HF and better trebles . I would say small improvement but clearly audible
Adding some 220uF caps to analog stage. No improvement


KATANA 1.2 is being finalized and ready to ship by the end of the month.

 

will update soon.

Regards

Andre

Did you modify something on the existing acrylic case for the Katana v1.2?

 

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8 hours ago, ALLOaudio said:

@beerandmusic

the isolator board offers galavanic isolation.

cables are very touchy subject, most people get theirs from other sources.

 

 

 

 

can you clarify this statement?  Do you mean you mean galvanic isolation is an option you can buy or that it is included?

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This is a bit silly, but  what are the inputs for the Katana player?.  In what ways can it be used. I get fooled looking at the pictures. 

 

1. Ethernet -> Katana?.

2.  laptop USB -> Katana?. 

3....?

 

 

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38 minutes ago, seeteeyou said:

None of the above, it's made exclusively to accept the I2S output of Raspberry Pi in addition to an upcoming isolator from Allo.

 

It's not that the 'Player' version has already the Pi board?.  

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Hello ALLOAudio

 

What is the optimum voltage for the Opamp Section?? i know the board say  +-15 volts


Hackintosh I7 16GB Ram, Roon, HQPlayer, Drobo 8 TB NAS, Raspberry Pi 3 NAA, Gustard X20 ES 9018 Xmos, Audio GD C39 Preamp, The First ONE DIY Amp, Monitor Audio GS20 Speakers, Monitor Audio RSW12 Subwoofer, PI Audio MagikBuss filter.

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I am so waiting for the Katana. How much longer until it is ready?


Powerbook G4 15 inch Aluminum, \"Fidela,\" M2tech EVO (BNC)with RF attenuator,dedicated PSU, Stereovox XV Ultra (BNC) Audio Note Dac Kit 2.1 Level B Signature Upgraded to 12AU7 tubes, ARC SP-16L Tube preamp , VAC PA100/100 Tube Amp), Vintage Tubes, Furutech ETP-80, (Alon 2 Mk2, (upgraded tweeters, Usher Woofers), Pangea Power cords, Omega Micro Active Planar PC. Signal Cable Silver Resolution ICs.

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1. Yes, but you have to solder it yourself. You can use both outputs at the same time according to allo.com.

2. Turning on can be complicated or easy. I use two of their SMPS via USB-C (Isolator and Controller). Then you can turn it on without any problems at the same time, also via switch socket.

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