Differences between Accuphase C-2820 and C-3800?

Thank You Nvp for your positive, polite response. My hope is to keep things civil even though I have a tendency to have an acidic bite from time to time. I'll refrain and keep things polite. Looking at a cutaway of the Attenuator
Potentiometer interior in the C-2820 appears to have a better gear drive and a better Attenuator pot and housing than the one in the C-3800. So it is a slightly improved AVAA design over the C-3800. As I already mentioned, the C-3800 is a slow seller nowadays and word is it will be put out of production within the foreseeable future.

Classact..I have heard the C-2810 but not the C-2820. The C-2820 is a far superior design to the 2810 and is definitely in the same league as the C-3800. The whole idea behind the C-2820 was to make a Preamp that comes within inches of the C-3800. Arturo with Axiss
in CA. is the Accuphase Distributor in the States and listened to the C-2820 at a show in Tokyo in late 2011 and told me its 90% of the performance of the C-3800. Jonathan with Perfect Note Audio in Mass. who is one of the top two Accuphase retailers in the country says the same thing. The C-3800 does not sell well for Accuphase so they decided to dump all their C-3800 tech stuff into the C-2820. The C-2820 has a newer and better designed volume gain control that is superior to the one in the C-3800. If you can afford it, the C-2820 is a steal compared to the C-3800.

Nvp..you obviously haven't read the technical changes on the Accuphase website. Just one of many major changes is using superior circuit boards that were not in the C-2810 such as glass cloth flourocarbin resin boards. The power supply in the 2820 is larger with bigger toroidal transformers and larger capacitors. The multiple circuit boards have a larger amount of small caps and components.
This is a major upgrade not a minor one and Accuphase has a reputation when putting out new models to put them on a higher level than the previous one. I was off the mark saying 98% but it is accurate that Arturo did state 90%. Again, the reason for the 2820 is that the C-3800 is a slow mover for Accuphase since it sells for over $40K and the 2820 will capture greater buying power since its almost half the price.

Baloney. I have no idea who Dave is. Arturo is the only exclusive wholesale Distributor for
Accuphase in the United States. He is very objective in his assessment and has more experience with Accuphase than anyone else in the country. He is not my retail dealer. He is a wholesaler. Why would he want to jeopardize the sales of the C-3800? You are really showing your ignorance referring to the manuals.
I could give two craps about the manuals. I am specifically
referring to the technical information in the Catalog pages and interior photo's on the Accuphase website. You have no idea what your talking about by stating the C-2820 is a minor change from the C-2810. The C-2820 is a whole new creature.

Nvp... You are in outer space and LaLa land on the tech info on the two Pre-amps. The C-2810 uses teflon copper circuit boards. The glass cloth flourocarbon resin boards are only used in the C-3800 and the new C-2820. This board material is extremely expensive and provides a much lower noise floor. Incremental improvement? Absurb. Do your homework and go buy a six pack.

Ooops...typo..fluorocarbon.

another typo..."Absurd"..must be my dementia..