Modwright sony xa 5400cd

I have the unmodified version. Did the upgrade result in appreciable improvement in the performance of the unit? Just wondering.

I also have the base unit. What is the nature of the upgrade?
As. I've said in previous posts, I've been disappointed by this unit, but not the same way that you have.

These are the first two negative responses that I heard about this mod - period. There is a midrange tube warmth, but the increased level of micro-detail and resolution are astounding and I am quite honestly surprised by these comments. There are MANY pleased customers who have our modified Sony XA-5400ES units.

Arnie Nudell himself was blown away by its performance at RMAF and he currently owns our modified 9100ES.

Thanks,

Dan W.

Dan, there appears to be only one negative comment about the modified unit above, not two. One of the other comments that might be construed as negative was tongue-in-cheek, and the other was about the unmodified unit.

JWM, how long is your interconnect cable, and what is its capacitance per unit length if you know it? I'm wondering if the perceived sluggishness might be due to the interaction of high cable capacitance with the output impedance of Dan's tube output stage, although I don't know what the value of that output impedance is.

Regards,
-- Al

I am using 2.5m of unbalanced Cardas Clear. Capacitance of the cable if too high would effect the top end by rolling it off; would not effect pace and rhythm. I am using a VAC Phi 300.1 monoblocks and their best preamp. I am in triode mode. I will switch to pentode mode and see.