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Part III:
Well, it is Saturday, May 09, 2009 and here I am back writing on the Solo SRG w/ the PSU1. I believe this will be my last time writing specifically on this amp. I may add a comment or so on other forums/post as I see fit. Anyways, the write up today will not be a comparison type. Instead I will write of my listening experience over the last few days.
Most of the time I was using an AKG K501, which as stated above has been re-cabled by Alex of APureSound. Here is a picture.

The amp has continued to evolve, but the changes have been IMO very subtle and the sum of all of them over the last week has been small compared w/ the changes since I received the unit or even over the last 100 hours of burn in. IMO the change over the last 25-50 hours have resulted in smoothing out the overall presentation, this has been followed by a bit more depth/width of the soundstage, and the bass amount has increased a bit. Do not expect the Solo SRG to shake the windows, it will not. However the bass is reproduced in a very tight, deep, and realistic way thus making this unit fantastic for jazz and classical users. I should also restate that the unit has amazing extension both ends.
It is apparent to those who have heard a lot of gear that some units may emphasize a frequency over others. Many of us compensate by getting an opposing headphone or source. For example, if the headphone is energetic in the top end we get a warm amp to tame the highs. No need to do so here, I find the Solo SRG to be very even in the way it present the overall frequency range, and it does so in a smooth controlled way.
For those wanting to know, I have used a variety of jazz music over the last week or so. For example:
1.Maysa
2.Mark Whitfield
3.Mark Antoine
4.Melody Gardot








My plans are to ship the unit out to a couple of aficionados so they can spend a couple of weeks with the amp and post their impressions. Even if they have a totally different opinion after listening to the Solo SRG it is IMO very good because it provides both the designer/builder as well as potential customers with valuable feedback. On one end the designer/builder can improve the product and on the other end the potential customer has a different take on the amp. To me this translates to a win-win situation.
Thanks for taking the time to read my ramblings.