Benchmark DAC1 Pre - anybody heard a mod?


I have a Benchmark DAC1 Pre that I am fairly happy with. I have seen and read several posts from people offering modifications to the DAC1 that apparently increase warmth, resolution and imaging. Does anybody own a modified DAC1 or DAC1 pre that has been modified? What were the modifications, costs and sonic improvements? Your advice will help me decide if this is the right decision for me.

Thanks
beatster
The benchmark is wonderful, I actually own one too. However, the sound is far from warm and full. If this is the type of sound that you are looking for, as stated above, then I think you would do better by putting your money into a Tubed Preamp as opposed to modifying the Benchmark. Mods should be use to improve the underlying characteristics of the component, however I doubt that it will change the Benchmark into something that it's not.

I know people like the purity of plugging the Dac right into the Amp, I've been there and done that too, however you will be amazed at just how much better, warmer and richer the sound could be from a nice tubed preamp.
Richlane - I agree, sound is far from warm and full but clarity and transparency is unprecedented. I drive directly class D power amp with good results but also know that people who combined Benchmark with tube gear were very happy. I would still bypassed preamp to drive tube power amp directly.
Less is more (and cheaper too).
Hi Kijanki,

I'm glad you're getting good results with your DAC plugged directly into your AMP. I too had good results with my Bel Canto DAC3 plugged directly into my Class D Bel Canto REF1000 Monoblocks, however when I re-tubbed my VTL Preamp and then put it back in my system; the sound improvement was astonishing. The soundstage opened up further, and there was better depth, width, imaging and PRAT. The Vocals were also more palpable and real with more flesh on the bones.

Sometimes less is more, but sometimes less is less.

I think that Beatster has basically 3 choices to get the warmer, richer sound that he desires.

1) Buy a Tubed Preamp
2) Buy a Tubed Amp or perhaps a high quality Class D Amp.
3) Buy a Tubed DAC

Since he already owns a Great DAC and a SS AMP, I think his best purchasing decision; in order to get a warmer and richer sound would be to add a Tubed Preamp instead of modifying his Benchmark DAC.

I happen to like the combination of a SS Amp matched to a Tubed Preamp.

Not only will a good quality Tubed Preamp warm up the sound, but as I stated above, it will also open up the soundstage dimensions, as well as provide better imaging, and PRAT.

Happy Listening!
Thank you all for your replies. I was also of the opinion that less is more and thus was looking at options of modifying the Benchmark DAC1 Pre. Now I am inclined to try a tube pre before deciding on next steps.

On another note, I also considered changing the Benchmark to another DAC. Came across a tube DAC called Chime made by Hagerman Technology? As I need USB input, this sounds very promising.