MINIDSP Adept ADC & Phono Preamp Review

[stefanovesa]

Do you think minidsp will enable running a dsp for denoising (clicks and pops) directly on the adept?

AFAIK this is not possible in real time. A software needs to analize the track, then can do such task.

 

[morillon]

Do you think minidsp will enable running a dsp for denoising (clicks and pops) directly on the adept?

The feature is not integrated for the time being.

 

[DrCWO]

Do you think minidsp will enable running a dsp for denoising (clicks and pops) directly on the adept?

Why not ask MiniDSP? Who else should know

 

[Ongii]

@stefanovesa
Indeed, such devices exist: Sweetvinyl and Waxwing

@DrCWO
Someone already asked, in the minidsp forum. No answer so far afaik

 

[markstein]

Do you think minidsp will enable running a dsp for denoising (clicks and pops) directly on the adept?

Only miniDSP knows, and they won't tell you unless it's released.

 

[NiCkLeB474]

Do you think minidsp will enable running a dsp for denoising (clicks and pops) directly on the adept?

I sent some questions to minidsp support and here are their responses, including if they plan on adding DSP:

Why was minimum phase chosen for the digital filter?
Ans : Reduce the effect concerning delay and response frequency.

Will the choice of digital filter ever be able to be set by the user?
Ans: It is feasible, but it is not currently part of our plan, as there have been no user requests for it, and considerable development time will be necessary to integrate it into software control.

Do you have any plans to add DSP features to the Adept such as parametric EQ, mono playback, click removal, or de-noising?
And: "There are no plans at this moment, but that would be a good suggestion."

 

[Ongii]

Hello
Yesterday I asked minidsp about the plans for adding such a dsp functionality and the answer was: "Such feature however would indeed require some custom DSP processing so not trivial. "

 

[stefanovesa]

I sent some questions to minidsp support and here are their responses, including if they plan on adding DSP:

Thanks for sharing, I'm interested to the question about the digital filter. Which is the impact of using different filters with ADC ?

 

[Valentino]

I have now read the entire thread about this interesting box, the miniDSP adept. I now have two questions:
1) Is the new firmware with five different gain settings up zo +12 db out already?
2) what kind of headroom, does one typically need from the loudest parts of a record, to allow for some crackle on a record, that is fairly clean?
I presently habe two options for my AT33/PTGII:
A) hook it up to my PSAudio Nuwave Phono Converter, where I have plenty of adjustability, and it also serves as an ADC, and then use its line out and go to an unbalanced Line in of my Linn G-ADSM/3. The disadvantage here is that the PSAudio NPC introduces some humm, if set to the necessary gain level (around 72 db usually). The digitizing with Vinylstudio on my Macbook works very well and is easy to perform.
B) hook the AT33/PTGII directly to the MC in of the Linn, and listen. The sound is very good, low noise and no hum. In case I want to digitize, I use a Line out of the Linn and adjust the volume on the Linn, and use the Line in of the PSAudio NPC. The disadvantage here is that I have to switch off my speakers (they would be way too loud), and monitor on the MAC speakers.

I am considering replacing the PSAudio which is plenty adjustable, but not very good at noise, by the miniDSP Adept.
The cartridges I use are: AT33/PTGII (my best cartidge and only MC), Elac ESG796H Sp (a vintage excellent MM), Elac EMM290HB30 (very good low output MM), Ortofon Vinyl Master silver (regular MM).

A very late response, I have not visited the thread for a good while.
I have an AT33PTG/II. Adept settings (FW 1.8):
Analog MC gain MH, digital 0 dB.
Input resistance M (100 Ohm)
Input Capacitance L (1 nF).

I've just been happy playing records, but the other day I used Audacity to record the (45 rpm, I always almost forget) Deutsche Grammophon The Original Source release of Maurizio Pollini playing the famous Chopin "Heroic" Polonaise in A flat Op. 53. The only post processing of the 24/96 recording is normalizing a recorded peak level of appx. -6 dBFS to -1 dBFS. FLAC file on Dropbox here. There is one spot of non-fill, but we all love vinyl so...