Recensioni

Finalmente è arrivato il DAC I2S a valvole di Raspberry PI

Good news for all tube junkies out there!

We’re extremely pleased to announce that the Volumio shop will feature another great piece of equipment: the PI2Design 503HTA – Hybrid Tube Amp!

I clearly remember when I saw it first time on Kickstarter : I immediately liked the idea, being a complete tube Junkie and having waited something like that (for the Raspberry PI at least) for a long time.

When I finally received it, I immediately started listening. And I must say I was really happy with what was coming to my hears. I might sum up my listening impressions to those bullet points:

  • A nice and punchy bass, way more present than what you get with ESS 9023
  • Great medium presentation. This thing sounds awesome with Rock and Jazz, bass-guitars, guitars and voices are really convincing!
  • Average amount of detail, nearly not as good as ESS 9023
  • It features an integrated DSP filter for High Frequencies roll-off, I definetely suggest to turn this off (via the plugin)

So, the 503HTA Hybrid Tube Amp sound signature is very euphonic, and I consider it the ultimate setup if you listen to Rock or Jazz. I think that the guys at PI2Design have made a really good job with it, and that is why it’s now featured in Volumio Shop: this is definetely one of the most interesting DACs at the moment. It has also other advantages:

  • Can be used also as a line preamp
  • Features a good quality Volume Potentiometer
  • Has individuals Anode Bias Adjustment Pots and  selectable Series/Parallel Heater Configuration (tube geeks please applaude!)
  • It can drive very high impedance Headphones, and has a selectable gain output

503hta-p5-labeled_orig

It however has just one shortcoming, if used with a Raspberry PI 3: unfortunately its FETs ends up just above the integrated wireless antenna, resulting in lot of noise when Wireless is in use. However, if you have a Raspberry PI3, you can just disable the Integrated Wireless (via network configuration in Volumio) if you don’t need it, or use an external wi-fi dongle.

All in all, I really like the 503HTA, it has a great look, sounds very well and it’s suited for tube rolling. So, if you’re like me and love tubes, Raspberry PI and Volumio you’ve just found the perfect toy !

The PI2Design 503HTA – Hybrid Tube Amp can be bought on our Shop and will be shipped directly from PI2Design. Let us know what you think about it in the dedicated thread!

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Informazioni su Michelangelo Guarise

Appassionato. Eretico. Profondamente innamorato della tecnologia e della musica. Vivo a Firenze, dove insegno Interaction Design e Marketing. Sono il fondatore e il CEO di Volumio e amo ogni secondo di questa grande avventura. Il mio impianto audio è uno strano mix di amplificatori valvolari e digitali, tutti autocostruiti in alcune fredde notti d'inverno. E non riesco ad abbassare la manopola del volume.

Messaggi correlati

8 thoughts on “A Tube Raspberry PI I2S DAC is finally here”

  1. Albi says:

    Sounds really good, I can’t compare it to other DACS because it’s my first DAC, but I think is really good at reproducing voices, expecially female voices, really precise with sounds and well balanced, details are present, guitars and pianos are sweet but have a lot of power (Please listen to Alicia Keys, Sia, Aretha Franklin). I use Audio-Technica ATH-MSR7 Headphones. I have a tutorial in Italian about this DAC. http://twelvepurplepills.com/raspberry-per-audiofili/ https://uploads.disquscdn.com/images/84b35af21687b86237ab426ff1900a8d4cc22c43a0f314f02ee2148cad2d8bc9.jpg

    1. Volumio says:

      Ciao Albi! Bell’articolo, completissimo complimenti!

      1. Albi says:

        Grazie! Complimenti a te per l’ottimo lavoro con Volumio!

  2. Randolph Decker says:

    I bought the 503HTA. I assembled it. However, I still have not been able to hear any audio from the tube amp. I have been able to use rune audio to listen to audio through HDMI. But no joy from the RCA jack. I welcome any help.

    1. volumio says:

      So you were a believer like me!
      What do you think of the sound? Do you agree with what I said or you have different outcomes?

      1. Orderoftheflame says:

        I think it sounds great. 🙂

        This is my first Raspi/DAC toy, so I’ve not a lot to compare if to currently. Really enjoying volumio, thanks for the hard work and I look forward to the next update.

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