D200 Mod 2.0.1 - Printable Version +- Devialet Chat (https://devialetchat.com) +-- Forum: Devialet Chat (https://devialetchat.com/Forum-Devialet-Chat) +--- Forum: Tweaker's Corner (https://devialetchat.com/Forum-Tweaker-s-Corner) +--- Thread: D200 Mod 2.0.1 (/Thread-D200-Mod-2-0-1) |
RE: D200 Mod 2.0.1 - ogs - 11-Dec-2016 (11-Dec-2016, 14:15)yabaVR Wrote: The 2x10 pin connector is 2x4 (+ signal left), 2x4 (+ signal right) and 2x2 (signal ground). It's the 'downpipe' from the D-amp above. So this is actually the speaker output from the D amp? A very critical connection in other words! There is a post describing contact fluid here: http://devialetchat.com/showthread.php?tid=68&pid=649#pid649 RE: D200 Mod 2.0.1 - thumb5 - 11-Dec-2016 (11-Dec-2016, 14:15)yabaVR Wrote: The 2x10 pin connector is 2x4 (+ signal left), 2x4 (+ signal right) and 2x2 (signal ground). Hmmm. Considering that the 2x2 poles of the ground connector presumably have to carry the return current from all 2x8 poles of the left and right speakers outputs I wonder whether that in itself might have some bearing on the improved performance in dual-mono mode, where the relatively higher-resistance ground path won't be used. (Seems a bit far fetched but in the spirit of the thread I'm trying to be open-minded...) RE: D200 Mod 2.0.1 - Pim - 11-Dec-2016 (11-Dec-2016, 14:06)ogs Wrote:(11-Dec-2016, 12:52)Confused Wrote: I am interested in the rational behind these modifications, that is what issue exactly are you trying to mitigate? Please don't take this negatively, I am not dismissing your good work here, I am just trying to understand it. In fact, I have quite a history of 'modding', although in my case with cars, not electronics. So I get the pleasure of all this, driving a quick car is fun, but driving a quick car that is quick because you have rebuilt and modified the engine yourself adds an extra level to the joy! I presume the same thing applies to hifi. I can shine a little light on the ring around the pin issue from experience. A long time ago, back in the Netherlands, I worked for an electronics repair shop. I was just a shit kicker picking up and installing the stuff but one of the things I did learn was the 'ring around the pin' problem. It happens mostly on high current items such as transformers and transistors in the power supply of the old TV's (Think 70's-90's). They expand and crimp every time the machine gets turned off and on and over time the solder breaks and the ring appears. It was so common in TV's that even though they could be repairing something completely different in the TV, it was common practice to re-solder those known high current points as a preventative measure. To give you an idea of how common it is; I've kept my old Sony TV going for 23 years just by re-soldering those points every two years or so. And even when I threw it out it was still working. I just found out that an outgoing 32" model would just fit in between to cupboards and the new model didn't so I decided to bite the bullet on a flat screen TV before the old girl died. RE: D200 Mod 2.0.1 - ogs - 11-Dec-2016 (11-Dec-2016, 13:03)Vivialet Wrote: The terminals of my speakers are also modded with WBT NextGen and a solid core silver cable from the WBT's to the crossover. This has also a positive effect. Yes I would hate to loose the guarantee, but you are right; better terminals and better cable help. I keep the dividing network outside of the speaker box. I've connected the woofer via the the original binding post for many years. I finally soldered a high quality cable to the speaker unit and connected it directly to the crossover. Wow what a difference! I guess most of the difference is loosing the cheap binding posts, but the cable also helps. RE: D200 Mod 2.0.1 - Duomike - 12-Dec-2016 (10-Dec-2016, 21:30)yabaVR Wrote: To those considering a next step mod to their DsWould you be so kind and send me pics of the mod to my email: [email protected] On my iphone can't open hour attachment. thanks, Michael RE: D200 Mod 2.0.1 - pete86 - 12-Dec-2016 Sorry if i missed it, but gui would you mind linking to the other mods you have done? RE: D200 Mod 2.0.1 - Vivialet - 12-Dec-2016 the problem with soldering is that you will not be able to get any future upgrade from Devialet. With the current design they can simply swap boards with new ones, if everything is soldered this would not be possible anymore. RE: D200 Mod 2.0.1 - yabaVR - 12-Dec-2016 (12-Dec-2016, 09:45)Vivialet Wrote: the problem with soldering is that you will not be able to get any future upgrade from Devialet. With the current design they can simply swap boards with new ones, if everything is soldered this would not be possible anymore. If you (or a good friend with skills) can do it ones, you can undo it any time getting back to original state and send your D for updating. The binding posts are just screwed to the chassis (back panel) of the D. So is the XLR socket. The riserboard connecting to the binding post can be unplugged (motherboard must be removed first from chassis). The XLR socket is a Neutrik you can easily buy online together with a 4pin stripe. Then you solder cables onto this 4pin connector stripe/XLR socket and stick it to the last 4pins where the XLR was connected to through the riserboard. No harm done to the original until yet. The soldering on the motherboard is only done at the 2x10 pin connector (4 joints). If you are able to do a clean and nice soldering job without burning up the 2x10 connector you can desolder this mod at any time. Maybe a 2h job all in all (removing the motherboard and else) but you can put it to an original state so even Devialet doesn't moan about or even doesn't recognize. It's different with the IEC because you have to drill 2 small holes (M3 screws) for the new (unfiltered) IEC to be fixed. Else but the holes you even can reverse the IEC mod to original state. Don't know if Devialet would moan about 2 small holes in the back panel...depends. After getting back the updated D you burn it in for, lets say, 500-1000h. If the new design is stable and no faults occure, you would likely do this mods again since there is a good chance Devialet doesn't change anything in their design. gui RE: D200 Mod 2.0.1 - warpeon - 12-Dec-2016 YabaVR, I think what u did is very interesting and make sense - it is like the amp's out put is bottlenecked by the riserboard before releasing to the speaker posts. would you mind showing a photo of the riser board? I am thinking may b a more warranty friendly mod is to solder the speaker post to a pin connector cable? And possibly cryo that direct connection mod piece? RE: D200 Mod 2.0.1 - yabaVR - 12-Dec-2016 (11-Dec-2016, 15:51)Hifi_swlon Wrote:(11-Dec-2016, 14:56)yabaVR Wrote: I know it's hard to not think of meassuring . About Devialet I really think it's all about money for them. And don't think they will change the initial design with pin connections as you can see with the new IEC build into the PROs. It's made to plug onto the motherboard with some kind of spring metal (steel?). It's sad but the circuit design with all the patents they hold is that good that the 'end result' stays good enough to be competitive despite the flaws they incorporated with some other parts in the design. In the end it seem to be a live style product to them. Ok. Warranty. That's what all are concerned about. Let's say you have your D about half a year and nothings wrong with it. It would be very unfamiliar that a fault would occur after this period. Sure it can be, but very rarely. Even then it depends on the fact what Devialet would charge you for a repair if it's worth to risk your warranty. Question is, is the benefit of a mod worth a few hundred bucks of a repair if it ever occurs? That's a very personal question to be solved by oneself's. For me it's worth. Imagine you get to the performance of the next best D model...and beyond. Because even a 1000Pro is limited to this riserboard and these cheaply binding posts. Modifying gets you special improvements in sound even a 1000Pro can't have. I expect a 1000Pro still outperforming a modded D220 but in certain areas of sound performance it has to be second because it can not overcome the flaws in design it has compared to the modded D...see, there is no bypass. The music signal is 'contaminated' when forced to run this 'way'. It's my experience that certain parts (you modify) give (and take away) a special 'signature' to the sound. The sound would get more pure but on the other side every cable/connector or else has it's own 'signature' to the sound and you have to like it (thinkin' of Silver, Rhodium, Gold etc.) Doing this mods will take AWAY a lot of unwanted 'signature' induced to the sound. The sound of my D200 is now by far cleaner/purer/a lot faster/much more 3D/more emotional/more musical. The experience while listening is much more intense. Be aware if you do this mods you will hear more flaws of recordings, more flaws of your audio chain, more of all the 'negative' experiences some new PRO owner hear because the new PRO is more open and sensitive to external influences and processed faults up and down your audio chain. But if you trimmed your system to be as pure as it can be and you like that sound... that's the way to go. gui |