Oppo`s BDP105 - discussions, upgrading, mods...

[qusp]

Originally Posted by Coris

I found those my pictures published earlier in this forum. It were measured on the RCA output of (mod) BDP95.
One it show 21Vpp (high dynamic sound/orchestra) and another one 5Vpp (80Khz sinus played through DAC, from digital file)...

But I will measure again and I will present it here soon.

check this article here in DIYA out for what i'm talking about, it explains it far better than I can, since it doesnt seem to be making sense to you.

better than cluttering up the thread. 21vpp and your 25% volume setting before its very loud comment would mean terrible gain structure

[Coris]

There were published some new pictures of the analogue stage of BDP105.
Now is possible to see what kind of capacity have the AC coupling caps... Just 100µF...

Is quite nice that Oppo care much to give more jobs to the modders. It will be enough work to be done with this new model too...

[Erlend Sæterdal]

Originally Posted by Coris

There were published some new pictures of the analogue stage of BDP105.
Now is possible to see what kind of capacity have the AC coupling caps... Just 100µF...

Is quite nice that Oppo care much to give more jobs to the modders. It will be enough work to be done with this new model too...

Hehe I heard Both a 95 and a 83 both modded but nothing modded in the analog stage.
The Quality was lousy. Why not remove all of the analog stage and use a new discret one ?

[john curl]

It is, of course, possible to build an 'all discrete' analogue design. It is just a lot of trouble. Still, it should be better, IF it is done right.

[David Gatti]

Originally Posted by Coris

There were published some new pictures of the analogue stage of BDP105.
Now is possible to see what kind of capacity have the AC coupling caps... Just 100µF...

Is quite nice that Oppo care much to give more jobs to the modders. It will be enough work to be done with this new model too...

Yep, have to agree. there's a whole new market opening up for modding these seriously compromised output stages.
I wonder how the 103 compares.

ModWright is already working on something.

[Coris]

Originally Posted by Erlend Sæterdal

Hehe I heard Both a 95 and a 83 both modded but nothing modded in the analog stage.
The Quality was lousy. Why not remove all of the analog stage and use a new discret one ?

This belong to an moded analogue (stereo) stage of 95... Is really very small.
Is just stupid to use something else than DC coupling for this analogue output (XLR/RCA) in a quite high end player. At last they should use non polarised caps. Such approach should look much more professional, than only throw on that outputs some usual 100µ caps.
With today components technology such design is just wrong!

[mvc]

Here's a manufacturer's quote from a review of the Burson Audio Conductor, on 6moons. It uses the same Sabre DAC as the Oppo 105.

"During the R&D process we tried all eight channels in multi-parallel. We found the sound to be overly colored and unnatural. Very ‘digital’ if I may say so. Hence we abandoned the 8-channel configuration and used the main 2 channels, which in our opinion sounds more organic and balanced."

[qusp]

haha, I have no words...

thats a cop-out plain and simple.

[john curl]

This last week, I met with the designers of the OPPO 105 analogue stage. They are competent, and well intentioned. However, the need for keeping cost within reasonable bounds, and adding features, limits what they CAN do themselves. I personally have used the 105: Stock, with STAX Lambda electrostatic headphones, and I will say it is the best player (of its type) that I have heard, including SACD.

[Erlend Sæterdal]

Originally Posted by john curl

It is, of course, possible to build an 'all discrete' analogue design. It is just a lot of trouble. Still, it should be better, IF it is done right.