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Looking for an upgrade to my Ack Dack 2.0

It seems to me that my Ack Dack 2.0 is not as dynamic as I would like. I could be wrong, but I would like to try another dac that maintains the tonal warmth and richness of the Ack Dack, but with more speed and impact.

From reading these forums, it appears I should consider the Kora Hermes and possibly Audio Mirror. What about other options with the sonic signature I am looking for?
kevin_mcdonough
gongos
7 posts
 
Get the Ack modified by empiricalaudio.com. I a/b'd between a stock model and a modded one--no contest.
kevin_mcdonough OP
6 posts
 
Gongos, did you compare a modded Ack 2.0 or the 1.x model? If so, what improvements did you notice?
gongos
7 posts
 
I compared the Modded unit to a 1.x. I talked to Steve before I sent in the Dack, and he told me it didn't make a difference if I sent in a 2.0 or a 1.x--the end results would be the same. The modded unit was much better from top to bottom. The most obvious improvements were more detail, dynamics, and an amazing 3-D presentation.

I'd imagine the results of modding your 2.0 would be similar. Or, you could sell the 2.0, buy a cheaper 1.x, and have the 1.x sent in for mods.
audphile1's avatar
audphile1
4,800 posts
 
what transport and digital cable you are using? What is the power cord on the amp, dac and transport?
What headphones?

If you list the associated equipment and your music choice it would be easier to pin the problem.
kevin_mcdonough OP
6 posts
 
Gongos, that is good to know. I sent an email to Steve last night and he said the dynamics could definitely be improved. Also, RAM does mods to the Ack as well.

I am not wedded to the Ack per se, but I like its tone (rich and full), but I want to see if I can have something that takes this tone but adds more speed and impact. I listen to rock and blues music a lot and impact is important to me.

My system consists of a modified Squeezebox 2, using a Bolder Cable digital cable to the Ack Dack, going into a Singlepower Supra tubed headphone amp, and finally my Grado RS-1s. Power cord on the amp is a Venhaus Flavor 2. Ack is obviously battery powered.

I am not sure I have a problem. It is hard to tell without listening to a DAC known for great dynamics (but still possesing a rich tone). I did notice when I used 5687 tubes as outputs in my amp (via adapters) I got a lot more impact with my music (previously I was using 12sn7 tubes).

It's just a feeling that my Ack is not as dynamic as it could be. It may be a totally false assumption, but I want to consider other options, with modding the Ack being one of them.
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