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In Reply to: toshiba 3950 on its way to me posted by zman on March 04, 2004 at 16:37:16:
My buddy picked it up tonight FutureShop was out of 3950s and they just got the 3860s in so .... I'll give it a listen and post tonight :)
The 3950 uses the Burr Brown (TI) 1751 dac, and does not have multichannel RCA outputs (only stereo), dvd-a, etc. There is no optical output either.
If yours has all the extras, then they do not use identical boards, but the topologies may be similar.
I like the "KISS" approach of the 3950.
Thanks Vinnie. FWIW the Toshiba SD 430V (also not on the Toshiba Website) and apparently an interim replacement for the 3950 (available at Future Shop in Canada for $119 Cnd.) also has that DAC and the same layout mentioned by John Swenson below (I just popped the top on one I picked up a few days ago). There are slight cosmetic differences, but the only significant difference appears to be that the 430V has both coax and optical outs.
It is very tight to connect both component video and the analog outs as they are right on top of each other on the rear panel.
I ran a burn-in disc on my 430 for about 6 hours before doing any critical listening, but I have to say I am quite impressed. The player is very refined and composed (I can't believe how good the highs are-very, very clean and non-digital sounding). With respect to the mini-review in this thread about the bass, I would say that my initial impressions were that the player was somewhat bass shy, but upon further listening what came through to me was that this player is eliminating a lot of bass bloat that my previous player had that was simply muddying things up. Kind of like switching from a crappy RCA to Eichmann bullet plugs. Actually, the Toshiba bass, when it really is there is very deep and defined.
A BB PCM 1742KEG inside.
Stats on this chip:
24 bit - SNR(Typ)(dB) 106 - Multilevel Delta-Sigma
Sampling Rate(Max)(kHz) 192 or 96khz (8x or 4x option)
Here is the link to the detailed PCM1751 Info:
And you'll note that... there is none lol its a PREVIEW status DAC from BB.
BB's newest DACs (on their listing page) are pushing well over 120DB Signal to Noise Ratio (a few 130s)
must be the chip, in combination with a simple board layout-
and now discontinued,that sucks.
Some initial impressions:
My Pioneer is my normal unit. The JVC is my friend Jesse's and the Toshiba is new and just opened tonight. The Pioneer & JVC are both well broken in.
Same set of interconnects - same volume levels - Each of the DVD players appear to output the same voltage and volume matching wasn't required.
Pioneer DV353: Muddy bass, Painful highs, there was not realistic decay in the bass it just kind of lingered artificially.
Toshiba SD-3860: Right out of the box - Silky highs, very detailed, bass decayed well but seemed very weak in comparison to the other two - however it isn't broken in yet so I will post an update on that in a week or so :)
JVC N-44SL: Very detailed - good bass good highs - highs not as good as the Toshiba and not quite as detailed but the bass was very quick and accurate.
Jesse: Likes the JVC more due to the bass and well he owns it.
Nathan: The Toshiba is better than my Pioneer but didn't appear to be anything earthshattering like it is being heralded in the forums. However I will let it break in and see how it is.
Note: We both think that the remote on the Toshiba is UTTER SH!T. JVC remote is far better (Jesse like's JVC most - I like the Pioneer remote better).
Does anyone know if the guts of the 3860 are the same as the 3950? Or is there a chip or somethign inside i can examine to determine if the same components are used within? Please let me know and I'll crack open my 3860.
If you have any specific questions let me know!
havent found a 3860 yet-heck it's not even on the toshiba web page yet.
i wonder if its changed in name only or guts also-that would be a shame-
i cashed in the change jar and grabbed a 3950 from bb yesterday-
now i have one for modding-hehe-
I am having great success modding the 3950 so far!!!
The sound keeps getting better and better. I have already
changed 17 caps to Panasonic FCs, installed two black gates
non-polar caps for the output decoupling, improved filtering
on the AC side of the power supply, etc. This player is making
beautiful sound, I LOVE IT! Very engauging, very airy, very clean and tight!
I'll be away from a computer until tonight. I'll write a post
about it tonight or tomorrow. I still have a few things that
I want to try, but so far I am blow away by how easy it is to
make this player sound like a > $1,000 player. The design and layout is really good to beging with, they just skimped on some of the parts (mainly the caps).
I'll write more soon,
I don't have the annoying display troubles that you guys were complaining about on the 3950. 3860 has a shitty universal remote - Toslink & Digital coax etc. So probably a different topology and it for sure is a different DAC.
I'm going to try to grab a SD-430V which uses the same DAC/roughly same layout as the 3950 and then do a comparison :)
Well the bass showed up today :) So now there really is no contest between the Pioneer/JVC and the Toshiba - the Toshiba I have is quite enjoyable to listen too but I'm still going to begin a CD player comparison in my quest for source replacement so we'll see :)
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