This is the final report from 300 hours to 450 hours of burn in after the modification made to my Sony SCD-1, SACD player.
At hour 340 the timbre had tamed enough for me to replace my "Orchard Bay" Titanium cones under the pre amp and amps. This tightened up the focus another percentage, but brought too much detail and transparency for my taste. I chose to leave the cones on with hopes the timber would continue to improve.
At 390 hours the timber had continued to tame, now at the point I've found the audio shops prefer their reference systems to be. Still a bit aggressive for my personal taste, but a great presentation none the less. The major draw back of the SCD-1 in the reviews I've read is that the presentation was too polite and willing to please. The Marantz on the other hand has almost too much transparency and detail for some reviewer's tastes. The modified Sony stands somewhere in between, maybe closer to the Marantz than the non modified SCD-1.
At hour 450 the timber was pleasing, I than began to play with speaker toeing. My speakers were set up with 16 degrees of toe-in. I've now opened them up to 12 ½ degrees at 76" centerline to centerline. The newly modified SCD-1 lost no center imaging ( I was unable to open the speakers beyond this point prior to the modification) and the sound stage opened up an apparent six more feet. The distance and clarity between instruments within the sound stage have increased substantially. Sounds that were only inches apart now appear with a good foot of separation. This is an amazing benefit I had not anticipated with the modification, but is worth the price of admission it's self.
Musical impressions of "redbook" cd playback:
PACE! SPEED! RHYTHM! All are so vastly improved, I can't find a single disk that my foot isn't moving to. It's put an energy into the music that simply was not there before. Piano is in my opinion the hardest instrument for digital reproduction. It can sound harsh or electric and glary. I spent my childhood with both grandfathers and a mother who played piano every spare moment they had. In collage I dated a student of classical piano for three years and went to hear many concerts and recitals. The SCD-1 has finally gotten the piano right. It still allows for the attack and excitement of the strings being struck and in full transparency, but the edginess and glare are not present. The timbre seems very natural. The sound through the full set of octaves is smooth and yet quite immediate. Each key hitting sounds like a string ringing, a tingling vibration is felt throughout the room. Even to the highest notes, that has a bell like tone. The lowest notes have a bite or growl that is very convincing.
Cymbals have a shimmer and space around them, and the decay of value are real and lingering. The clarinet, which is often scratchy and electrical sounds sweet, smooth and very real. The vibraphone on the John Cocuzzi Quintet's "Swingin' and Burnin'" cd is filled with life and energy. The ringing of the steel tubes is extremely inviting without a touch of digital glare. The violin shows the texture of the bow against the strings, again without the scratchy electronic sound often found with digital. All and all, I have no complaints, only amazement and accolades. Every instrument I tried to play was realistic in tone and timber with terrifically natural decay.
So how about the SACD vs. "redbook" cd? Is redbook as good as SACD with the modified player? Well, no. "Redbook" has now been brought up to the point of where the SACD playback was before the modification, but the SACD playback has also been brought up a notch, so SACD still edges out ""redbook," but not by as large a margin. I played Rebecca Pidgon's "Raven" which I have in the original "redbook" and in SACD. The "redbook" is amazingly clear and far better than the experience prior to the modification. If I never heard anything else of this disk, I'd say it was a ten. SACD is better, fuller, richer, more refined and lifelike. The presentation just breathes with a realism I've never heard before. I was able to match the toning and timber with use of the filters, but not the presence or realism. It's only a tinny factor, but it's there.
For me this modification is a must if you own a player already. If your looking to buy an SACD player that can produce state of the art, you must consider this package before looking at the "designer" systems.
In two weeks I will write a brief review of how the up-sampling DAC performs compared to the Modified "redbook" playback.