[LAU] New hardware setup for recording (not same as existing threads)

Martin Cracauer cracauer at cons.org
Fri May 29 20:37:05 UTC 2015

Michael Jarosch wrote on Tue, May 26, 2015 at 01:08:30PM +0200: 
> Am Montag, den 25.05.2015, 17:23 -0400 schrieb Martin Cracauer:
> > I wonder whether somebody has recommendations for these two parts.
> > Digital part with great Linux support,
> That's easy: Speaking about Linux-support I don't know anything better
> than RME. I'm using an HDSP9652 for quite a while, now, and never had
> any problems.
> If you don't like PCI, there is also a successor with PCIe.

Thanks.  Looks awesome.

I should explain myself a bit about this kind of general question.  I
want to avoid settling for something that has Linux support-ish right
now but is shaky.  I have a huge, I mean huge, stack of PCI soundcards
from 2 decades of messing with it that all kinda worked under Linux
and FreeBSD at some point, but there is always catches.  To this day I
cannot use the S/PDIF in on my otherwise beloved Turtlebeach.

So the RME stuff works from Linux drivers that came out of usable
documentation and help from the vendor? Do they need a firmware

But now to the important followup questions:

So, these cards have multiple optical connectors.  That means I can
just run as many ADAT A/D units as I like? Input and output? And all
of that will be visible as a single soundcard with many channels in a
single jack demon? Is that how it works? Without having to make
software bridges between multiple jack demons?

The thing is that I want 4 outputs, too.  It seems that 19" units with
both in and out are rare, so I am aiming for an 8-port in and a 4-port
out in separate units.  That would be all in the same jackd?

What happens if one of the units doesn't do world clock and you mix it
with world clocked units? How does that end up in the same jackd? Does

> >  and what do I use for analog to ADAT?
> My first A/D-converter was a Behringer ADA8000, too. After buying the
> RME my wallet was empty. :)
> After all, the Behringer device is o.k. - just had some trouble with a
> broken lightpipe-output (guess, they are using better ones in a later
> revision). What I don't like is the missing WordClock Out/Through.
> Keep in mind, they can only play 48000 Hz. But the HDSP sound great even
> at 48kHz/24bit.
> Surprisingly, the ADA8000 output seems to be a clone of the
> 48kHz-version of the RME Analogue Extension Boards ("AEB 4/8-O"), at
> least they are using the same chips.

I don't like buying Behringer branded equipment, at least not until
they reimburse me for some junk they sold me.  A very hot power supply
inside the 19" unit is also a problem for me.  I try to get lower
power units and don't want to spend huge amounts of rack spaces.
External PSU is fine with me.

I am looking at the ART OptoTube 8 like this:

Anything good or bad to say about it? I know that they don't run the
tubes at high enough voltage to actually play the tube advantage.  But
my 2-channel to S/PDIF Art ART unit works for me, I like it.

Any recommendation for a couple of output channels?

Martin Cracauer <cracauer at cons.org>   http://www.cons.org/cracauer/

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