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Musicaltech Musicaltech specialize in top digital audio concepts using powerful programmable logic devices. Original designs include total replacement of off-the-shelf chips - seen by the Musicaltech team as a limitation in performance and flexibility. Information about one of the the most sophisticated dacs avaialable for DIYers, either multibit or delta-sigma, are available in the dedicated forum.

DSD with PCM1704
DSD with PCM1704
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Old 16th February 2015, 06:01 PM   #11
mk57 is offline mk57  United States
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Location: Houston Texas
Can you post prices please
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Old 20th April 2015, 12:50 AM   #12
Audioheaven is offline Audioheaven  Denmark
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Join Date: Jun 2014
Can it be used together with audio note I/V transformer and audio note tube output stage ?
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Old 20th November 2015, 08:31 PM   #13
gabrielbecheanu is offline gabrielbecheanu  Romania
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Location: Constanta
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I must say a few words about this HI End DAC.

I have this new version of at least one year, I have not used this DAC because IV was incomplete, I missed two tubes, bought finally a pair of 12AX7 Mullard Reissue Cryo for IV, second stage uses NOS 12AT7 made by Siemens .
IV stage is made by Glassware Audio.

I use this DAC via USB with Raspberry Pi 2 and Rune audio software.
Rune see RD40 as Audiobyte HD USB so there is no problem with drivers (Volumio see this device as a USB DAC)
Rune plays all formats, including DSD, but not from an ISO file, can play DFF and DSF.
This is the best DAC with PCM1704 digital converter that can play HD files up to 192 by SPDIF and via USB to 384kHz

My brother uses a Buffalo DAC II I can tell you that RD40 is very musical, can hear more details. The differences are not so big, but you can hear .
I use the IV tube, Buffalo IV is solid state, he has a preamp tube in his system, so it match better with my DAC.

10 years ago I listen to a CD player with 4xPCM converters 1704, was a Wadia 861 I was shocked, it was a magnificent sound , I wanted a PCM 1704DAC and finally have it.
Mr Lupulroz thanks for that.
I wish you guys to enjoy as long is possible to listen from a DAC like this using a netowork player or a CD player

Best regards
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Old 8th November 2017, 07:11 PM   #14
KennethDK is offline KennethDK
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Join Date: Sep 2017
How much is it?
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Old 22nd February 2019, 10:54 AM   #15
GhostMM is offline GhostMM  France
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Join Date: Oct 2013
I wanted to know if their is some firmware update for this DAC, i got mine a few years ago. Sound is excellent but their is pop at startup / power down, and every time the frequency is switch. Also the dac do not keep the settings at power down.
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