Allo Revolution DAC

Started by Tabcam, June 10, 2020, 12:18:00

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Tabcam

Gezien de prijs/prestatie van de Allo producten en dat ze meten wel hoog in hun vaandel hebben staan lijkt mij deze dac ook bijzonder interessant:

Allo Revolution dac

Quote from: allo.comThe audiophile community is one big family united by the love of music.

There is however, a fundamental split on how we judge audio hardware. One camp (objectivist) swears by THD+N and the opposition (subjectivists) swear by what they hear.

We started Revolution as an attempt to unite both camps.

Objectivist side:
Revolution THD+N is -114.5. However, look closer. THD is the main problem since N (noise) is always around us and as such human ear/brain can tune it out. THD of Rev is at around -122 to -124 making this one of the best tested DACs (unbalanced outputs) in the world. 20Hz to 20Khz THD stays same (does not rise).

Subjectivist side:
Great THD numbers do not exclude great sound quality.

Revolution DAC was subjectively tested for many months and delayed until we were satisfied with SQ. What we have found out is that some practice (like audiophile caps in opamp rails) indeed increased the SQ, and we were able to see small reduction on harmonics on THD.

One area of concern was what it's been referred to as "bright sounds" on Ess DACs. We believe that main reason comes from datasheet implementation and lack of filtering before second opamp (summing). Most designs we see lack this fundamental passive filtering (again they just copy of datasheet) and the HF noise (one parameter, there are others), while it should not be audible, somehow creates this fatiguing sound. We are pleased to say that Rev does not have the bright sound associated with ESS.
Huiskamerset: PAP Sextet 15 PB, JBL Stage A130,  Arcam 550, Cambridge Audio Edge W, LG CX6LA,, BlueSound Node N130, NVidia Shield TV Pro
Zolderset: Usher Mini Dancer 2 DMD mk II, Anthem I225, Topping D30 Pro, BlueSound Node 2i

Kingpin

Voor de prijs zeker interessant.
Vandaar ook het aanzicht/kastje  ;)
Mainset : Kingpin TVC Preamplifier, Kingpin Tripath Amplifier, Logitech Squeezebox Touch, Kingpin Touch LiPo Power Supply, Metrum NOS DAC Quad, Kingpin Metrum Power Supply, MiniDSP DDRC-22D, Kingpin miniDSP Power Supply, Kingpin Power Distribution System, Audio Physic Brilon 2.0, Audio Physic Luna I, Apogee Wyde Eye, Copulare Zonal Rack

katwax

Is deze eindelijk beschikbaar. Niet dat ik er iets mee ben, maar er is alvast veel tijd en testing gebeurt alvorens deze publiek beschikbaar is gemaakt.
Stereo: Kii Three BXT System + Kii Control + Bluesound NODE (N130)
HT: Epson LS10000 - Xtrem Daylight 100"
http://www.htforum.nl/yabbse/index.php?topic=112543

StereoMike

Quote from: katwax on June 10, 2020, 15:17:21
Is deze eindelijk beschikbaar. Niet dat ik er iets mee ben, maar er is alvast veel tijd en testing gebeurt alvorens deze publiek beschikbaar is gemaakt.
Ze zijn er inderdaad lang mee bezig geweest.
Sometimes the greatest way to say something is to say nothing at all from Justin Timberlake

BMW850

#4
Heb nu 2 stuks in elkaar geknutseld.
1 voor mijn kameraad en heb er zelf ook maar 1 aangeschaft om mee te spelen.
Voor het bedrag speelt deze dac ontzettend goed.
Ben ook benieuwd of er meer personen deze revolution dac hebben beluisterd en naar hun bevindingen.

Ik heb een YouTube video gemaakt met mijn "mobiel"... dit zegt natuurlijk niets over de kwaliteit;)
https://youtu.be/p56XFke9uxI

Allo revolution dac
Allo usbridge signature met moode audio (roon bridge)
Allo shanti voeding (voor de usbridge en de revolution dac)
Nuc8i7beh met roon rock

Rudy
Blind belief in authority is the greatest enemy of truth. - Albert Einstein

Tabcam

Hier klinkt het wal hol, maar blijft erg mooi hoor, "Manchester Orchestra" ;).
Huiskamerset: PAP Sextet 15 PB, JBL Stage A130,  Arcam 550, Cambridge Audio Edge W, LG CX6LA,, BlueSound Node N130, NVidia Shield TV Pro
Zolderset: Usher Mini Dancer 2 DMD mk II, Anthem I225, Topping D30 Pro, BlueSound Node 2i