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Thread: THE ALLO KATANA 1.2 DAC REVIEW - A new ball game

  1. #31
    Join Date: Apr 2012

    Location: Near Oxford

    Posts: 876
    I'm Bill.

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    Quote Originally Posted by sourplum View Post
    I am using the isolator with the Boss, works like a charm
    Does it fit between the Pi and Boss or on top?

    I guess it won't fit inside the aluminium case?
    Allo Boss Player / NJC Audio Reference Headphone Amp / Sennheiser HD600

  2. #32
    Join Date: Jan 2011

    Location: Wiltshire

    Posts: 140
    I'm Alastair.

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    Quote Originally Posted by Bigman80 View Post
    I have a pi question or two.

    1) IF I were to use a SSD with the Pi to store the music files, would it need any extra power?

    2) IF I were to use a Linear PSU, What king of spec would be required and does anyone have a handy link?
    You can run the SSD from the USB, no problem. I did that for a while but (apparently) an SSD generates a lot of noise; I have found the sound to be better streaming from my NAS across wifi.

    From what I have read, a linear PSU might be wasted on the RPi itself. I recently bought a 50000 mAh MaxOak battery which has high current output and lasts ages and is much cheaper than a quality linear PSU with a high output current. The DigiOne Signature and Katana both isolate the "dirty" power of the RPi from a separate clean power supply (e.g. a battery or linear PSU) and you also need much lower current supply for that part too.
    Regards

    Alastair

    RPi3/DigiOne & piCorePlayer, MaxOak LiPo Battery -> Beresford Caiman SEG DAC with Dorado PSU-> Passive Pre-Amp -> 4x Temple Audio Monoblocks powered by 2xLiFePO batteries->Van Damme Black Bi-Wired to B&W 804 Nautilus and Sommer Carbokab 225 Interconnects

  3. #33
    Join Date: Nov 2015

    Location: Wolverhampton

    Posts: 8,865
    I'm Oliver.

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    Quote Originally Posted by Alp View Post
    You can run the SSD from the USB, no problem. I did that for a while but (apparently) an SSD generates a lot of noise; I have found the sound to be better streaming from my NAS across wifi.

    From what I have read, a linear PSU might be wasted on the RPi itself. I recently bought a 50000 mAh MaxOak battery which has high current output and lasts ages and is much cheaper than a quality linear PSU with a high output current. The DigiOne Signature and Katana both isolate the "dirty" power of the RPi from a separate clean power supply (e.g. a battery or linear PSU) and you also need much lower current supply for that part too.
    Ah, I see.

    Thanks for that.
    Analogue: Technics SP10 MK2 > Phonomac AT-1010 MK6 tonearm > Ortofon Kontrapunkt b > Bigbottle Jfet MC Valve Phonostage (Telefunken Valves)
    Digital: Raspberry Pi 3+/Allo Boss 1.2/Isolator 1.3 & 2x LPSU's with Volumio & JRiver
    Amplification: Nelson Pass DCB1 with Khozmo 48 Step Series Attenuator & Krell KSA100 MK2 Amplifier
    Cables: SPOTFIRE Speaker Cable & SPOTFIRE IC Cables & SPOTFIRE Tonearm cable
    Speakers: Pioneer CS-77A
    Price List For SPOTFIRE Cables here:https://bit.ly/2Uxiv3j

    Alternative reading: http://www.audioaddictsforum.com

  4. #34
    Join Date: May 2016

    Location: Notts

    Posts: 2,209
    I'm Geoff.

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    Quote Originally Posted by The Black Adder View Post
    Thanks, Mike. Your welcome.

    Yes, the case work is rather simple. I now feel this Allo package now needs to be presented much more professionally. To be able to buy a nicely designed case which fixes the wiring direction issue would be superb.

    It's all good feedback for Allo.
    I would have bought this myself if the product was produced in a case ideally with a good LPS to feed each board. At the asking price it needs to excel on ergonomics and not just on SQ!

  5. #35
    Join Date: Mar 2015

    Location: London

    Posts: 3
    I'm A.

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    My unstacked stack in 50mm case.




  6. #36
    Join Date: Apr 2012

    Location: Southall, West London

    Posts: 40,140
    I'm Geoff.

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    Sugden box, but internals look non-standard to me. Not that I'm familiar with the original.
    "when common sense, logic and plausibility are excluded. All that remain are foolishness and lies"

  7. #37
    Join Date: Aug 2009

    Location: Kent

    Posts: 454
    I'm Twisted.

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    Hello all

    I continue to use the Pi3 + IQ Audio DAC combo. I've been (and continue to be) mostly very happy with it. But having been 'away' for a couple of years I see things have moved on somewhat!

    I'm not a newcomer but it's hard to assess the merits of digital stuff, and I suppose I have the impossible question - so with apologies in advance for it - in what ways could I expect this modern marvel to exceed my IQaudio setup? (I note we are in a different price bracket here too).

    Simon

    PS I'm running a lovely Lurcher 300b, and terrific Reiver (Colin Topps) speakers, it's a revealing system. I manage the current pi set up with picore and squeezecommander.
    Simon

    Pi, Allo Katana+Isolator; Longdog 300b; Reiver Fenwicks & Edingdales; Mark Grant G1500; Colin Topps wires; dedicated mains, chair.

    Twitter @siashmore

  8. #38
    Join Date: Mar 2014

    Location: KY - Scotland

    Posts: 4,228
    I'm Mike.

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    Quote Originally Posted by Ashmore View Post
    Hello all

    I continue to use the Pi3 + IQ Audio DAC combo. I've been (and continue to be) mostly very happy with it. But having been 'away' for a couple of years I see things have moved on somewhat!

    I'm not a newcomer but it's hard to assess the merits of digital stuff, and I suppose I have the impossible question - so with apologies in advance for it - in what ways could I expect this modern marvel to exceed my IQaudio setup? (I note we are in a different price bracket here too).

    Simon

    PS I'm running a lovely Lurcher 300b, and terrific Reiver (Colin Topps) speakers, it's a revealing system. I manage the current pi set up with picore and squeezecommander.
    I've had an IQAudio DAC hat before, in fact it was my first Pi DAC, but I have to say that the Allo kit is better sounding but others might say different.

    The Allo kit is more expensive of course so no shame on the IQAudio.

  9. #39
    Join Date: Apr 2008

    Location: Cheltenham U.K

    Posts: 391
    I'm John.

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    @Ashmore

    I think you would find that the Katana is in a different league, and your system is certainly good enough to benefit from it. You need to factor in the cost of at least two decent 5V power supplies though.

  10. #40
    Join Date: Mar 2015

    Location: London

    Posts: 3
    I'm A.

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    Quote Originally Posted by walpurgis View Post
    Sugden box, but internals look non-standard to me. Not that I'm familiar with the original.
    Pi3b+
    Allo Katana 1.2
    Allo Isolator
    2x 5v linear PSU from MPAudio
    240v to 6v AC transformer from MPAudio

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