Change my AA front-end


I'm suspecting my AA digital gear may not be providing ALL the bass energy possible IMS. My buddie has the same Sonatina speakers and even on 6" granite platforms has better bass response. Of course, his room is smaller, but I believe his Theta transport and EVS dac are just that much better in the bottom-end. My gear> AA dds.pro transport / dtipro.32 (ad.3 ditter) jitter filter / ddev3.0 dac with Dusty Vawter's mod and Perpetual Technology op-amp upgrade / M.P.S. dedicated power supply for dde-dti. I'm using Audio Magic i2s mystic reference silver throughout. BMI Whale Elite power cords on dds.pro & M.P.S.

Not having sampled any other CDPs lately I'm interested in recommendations for a CDP (new or used) that would improve apon the AA gear and be purchased for what the AA could be sold for. I don't want to get into seperates or put anything into the upgrade. SACD is not an important consideration. I'm using a Moth s45 SET integrated amp with the Sonatinas and Shunyata Hydra PLC. The only areas I want to improve are bass weight and overall fullness to the presentation. I'm also looking into adding a tube preamp down the road. Thanks.
mwalsdor
AA refers to the defunct Audio Alchemy. Isn't the SCD-1 Sonys top-of-the-line player? Like I said I wasn't looking for the best, just something better than my AA gear which is about 6 years old technology-wise. Thanks for taking the time.
personally, i don't think the front end is your problem. i had the same front end driving a power amp direct with exactly the same problem. once i put an audible illusions tubed preamp in, all the fullness and bass suddenly appeared. i'd tend to blame it on the passive attenuator in your moth. hope this helps, harry
Thanks, I agree that is another avenue I'm looking into. But seeing my front-end is/has been the weakest link in the system I thought I might upgrade it first and THEN consider a tube preamp.
Out of curiosity, what kind of pre / amp is your buddy using ? Quite honestly, i would not expect phenomenal bottom end out of any SET amp. I will add that the Millennium's are VERY solid in terms of bass extension and weight, so that may be a factor. Sean
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He is using a Theta basic II transport / Melos Gold preamp with nice tubes and lastest upgrades / AES Super amp with the Amperex EL34's. He is using some killer power cords but I've always noted the heavier bass from his Sonatinas than from mine, so its not the umbilicals or tubes or amp. I've heard about 4 different amps IHS also. Funny thing I'm using 24x12x4" polished granite platforms under my Sonatinas and he turns around a get 6" granite bases and he stills has better bass! That was one area that IMS the granite didn't help.