Guest sacd lover Posted December 30, 2007 Report Share Posted December 30, 2007 Well the OMZ sounds VERY good .... but the unit doesnt seem to want to lock to the digital signal. Everytime I turn the cold OMZ on I get no output. I have to turn the unit off and then back on atleast once, usually several times to get a lock and output. I know it isnt the power switch because I hear a turn off transient throught the headphones when I shut the dac off. I hate that. I tried the dac with an E5 and two different sacdmods players; same result. I got this response from the seller .... The Ori is picky about transports. They all exhibit this issue. After a bit though, it did not give me any issues. Ori knows about this problem and I sent that unit to Fierce_Freak who did the reccommended aditions as well as the second output located on the far edge. Fierce reported a similiar problem too. Just a characteristic I suppose. It may help to leave both the trans and the dac on after you get signal. That is what I did. It would be nice if the seller would disclose these issues upfront. I would have passed. I cant leave my transports on with each one having zap filter output stages. This is a pain I dont want to deal with. Quote Link to comment Share on other sites More sharing options...
guzziguy Posted December 30, 2007 Report Share Posted December 30, 2007 It would be nice if the seller would disclose these issues upfront. I would have passed. I cant leave my transports on with each one having zap filter output stages. This is a pain I dont want to deal with. Hi Earl, What's the problem with leaving on units with zap filter output stages? Is it only a problem if there is no connection to amp? I like to keep my CD players turned on and don't want to kill my SACDMod E5 by doing that. -ken Quote Link to comment Share on other sites More sharing options...
ecclesand Posted December 30, 2007 Report Share Posted December 30, 2007 Well the OMZ sounds VERY good .... but the unit doesnt seem to want to lock to the digital signal. Everytime I turn the cold OMZ on I get no output. I have to turn the unit off and then back on atleast once, usually several times to get a lock and output. I know it isnt the power switch because I hear a turn off transient throught the headphones when I shut the dac off. I hate that. I tried the dac with an E5 and two different sacdmods players; same result. I got this response from the seller .... The Ori is picky about transports. They all exhibit this issue. After a bit though, it did not give me any issues. Ori knows about this problem and I sent that unit to Fierce_Freak who did the reccommended aditions as well as the second output located on the far edge. Fierce reported a similiar problem too. Just a characteristic I suppose. It may help to leave both the trans and the dac on after you get signal. That is what I did. It would be nice if the seller would disclose these issues upfront. I would have passed. I cant leave my transports on with each one having zap filter output stages. This is a pain I dont want to deal with. I too have this problem with my OMZ v4 which I just bought brand new from Ori a couple weeks ago. I have my computer hooked up via optical and my CDP via digital coax. Since most of my music is on my computer, I simply leave the OMZ on all the time and have never had to cycle the power switch to get a signal lock even after turning my computer off which I do nightly. I was a little annoyed at first, but I'm over it. I really do enjoy this DAC. Quote Link to comment Share on other sites More sharing options...
deepak Posted December 30, 2007 Report Share Posted December 30, 2007 It's a near $500 device you shouldn't have to "settle" for crap like that. Quote Link to comment Share on other sites More sharing options...
JBLoudG20 Posted December 30, 2007 Report Share Posted December 30, 2007 It's a near $500 device you shouldn't have to "settle" for crap like that. Its not just Ori units, this has been a problem with the Zhaolu for a while. What do you expect for a $100 Chinese 'hi-fi' piece of shit? Quote Link to comment Share on other sites More sharing options...
PFKMan23 Posted December 30, 2007 Report Share Posted December 30, 2007 Hi Earl, What's the problem with leaving on units with zap filter output stages? Is it only a problem if there is no connection to amp? I like to keep my CD players turned on and don't want to kill my SACDMod E5 by doing that. -ken They run on the warm/hot side of things for one... Quote Link to comment Share on other sites More sharing options...
Guest sacd lover Posted December 30, 2007 Report Share Posted December 30, 2007 Its not just Ori units, this has been a problem with the Zhaolu for a while. What do you expect for a $100 Chinese 'hi-fi' piece of shit? Given the first function a dac has to perform is to lock to the incoming data stream I expect the dac to lock. Any dac should be able to perform that fuction. My zap filtered Zhalou works flawlessly and sounds extremely good. I dont know about the stock Zhalou units but the modded ones are real bargains. Quote Link to comment Share on other sites More sharing options...
Guest sacd lover Posted December 30, 2007 Report Share Posted December 30, 2007 It's a near $500 device you shouldn't have to "settle" for crap like that. No kidding .... what was Ori thinking? //////////////////////////////////////////////////////////////////////////// Earl, This behavior happens because of the removal of the processor in version 4 of the mod in order to lower the noise level. There is no simple "fix" to this. I figured that it's not too much of a hassle and the sound quality justifies keeping this step. Thanks, Quote Link to comment Share on other sites More sharing options...
Guest sacd lover Posted December 30, 2007 Report Share Posted December 30, 2007 They run on the warm/hot side of things for one... Matt told me if you leave the zap on indefinitely you will eventually burn up the output stage. The zap runs in class A and there is not adequate heat sinking for uninterrupted operation. Quote Link to comment Share on other sites More sharing options...
n_maher Posted December 30, 2007 Report Share Posted December 30, 2007 Matt told me if you leave the zap on indefinitely you will eventually burn up the output stage. The zap runs in class A and there is not adequate heat sinking for uninterrupted operation. Yikes. I wonder what the projected life of the output is given they're that worried about continuous operation. Quote Link to comment Share on other sites More sharing options...
Pars Posted December 30, 2007 Report Share Posted December 30, 2007 Yikes. I wonder what the projected life of the output is given they're that worried about continuous operation. Remember that the Zapfilter uses all SMD stuff, including the BJTs. Now I'm certainly no expert on device selection, but all of the good transistors (Toshiba, etc.) I know of (KG designs, Jocko's I/V stage and variants, etc.) only come in thru-hole AFAIK (TO92, etc.) packaging. LC Audio says "Active components feature low noise Japanese audio transistors in Class A mode, and vertical bipolar types from Zetex, UK, with ultra high linear performance." Dissipating any kind of power and heat thru an SMD device has got to be problematic. Quote Link to comment Share on other sites More sharing options...
ecclesand Posted December 30, 2007 Report Share Posted December 30, 2007 No kidding .... what was Ori thinking? //////////////////////////////////////////////////////////////////////////// Earl, This behavior happens because of the removal of the processor in version 4 of the mod in order to lower the noise level. There is no simple "fix" to this. I figured that it's not too much of a hassle and the sound quality justifies keeping this step. Thanks, So it was intentional....I don't know if that makes me feel better or not.... Quote Link to comment Share on other sites More sharing options...
philodox Posted December 31, 2007 Report Share Posted December 31, 2007 Matt told me if you leave the zap on indefinitely you will eventually burn up the output stage. The zap runs in class A and there is not adequate heat sinking for uninterrupted operation. I've never heard this before, you may want to get a second opinion. I've left my rig on for a good long time without issues, but I do generally turn it off when I'm not using it. Quote Link to comment Share on other sites More sharing options...
Guest sacd lover Posted December 31, 2007 Report Share Posted December 31, 2007 Well the Ori is being returned to the seller. The seller is a great guy who definitely stepped up and is giving me a refund. He is, however, definitely ticked off that the reason the dac doesnt lock was a conscious decision by Ori to remove the processor. I have to admit I did like the sound quality. I am going to contact Ori to see if he will build me one WITH the processor. I wasnt crazy about the front panel either. I miss the power and lock lights on the stock unit. You have no idea what is going on with the upgraded front panel. There should atleast be a power indicator. Quote Link to comment Share on other sites More sharing options...
fierce_freak Posted December 31, 2007 Report Share Posted December 31, 2007 You'll hear from Ori that he has no LED's due to noise, as well Quote Link to comment Share on other sites More sharing options...
hYdrociTy Posted December 31, 2007 Report Share Posted December 31, 2007 so leds in the output stage as current source is ok, but an led far away on the panel connected to nothing important generates noise -rocket Quote Link to comment Share on other sites More sharing options...
n_maher Posted December 31, 2007 Report Share Posted December 31, 2007 so leds in the output stage as current source is ok, but an led far away on the panel connected to nothing important generates noise -rocket Quote Link to comment Share on other sites More sharing options...
purk Posted January 1, 2008 Report Share Posted January 1, 2008 Earls, How does your Zapfilter Zhalou measured up to your SACDmods Sony SCD-C555ES? Which do you like better and why? Thanks Quote Link to comment Share on other sites More sharing options...
Jon L Posted January 1, 2008 Report Share Posted January 1, 2008 Earls, How does your Zapfilter Zhalou measured up to your SACDmods Sony SCD-C555ES? Which do you like better and why? Thanks I hope you're not asking this question to pick up a certain Zapped Zhaolu on a FS forum on a certain website b/c I haven't finished my thoughts on whether I should buy it just for kicks and comparison purposes to OMZ I would have bought it if it didn't have the dang CS4398 board in that thing. I really much prefer the AD1852 board in my Zhaolu... Quote Link to comment Share on other sites More sharing options...
Guest sacd lover Posted January 1, 2008 Report Share Posted January 1, 2008 I hope you're not asking this question to pick up a certain Zapped Zhaolu on a FS forum on a certain website b/c I haven't finished my thoughts on whether I should buy it just for kicks and comparison purposes to OMZ I would have bought it if it didn't have the dang CS4398 board in that thing. I really much prefer the AD1852 board in my Zhaolu... I did buy it. I really like the 4398 with the zap. I really like the Ori with the 1852 too. The presentations are different but equally enjoyable to me. The zap definitely has more bass quantity and a brighter, faster sound. The Ori is more subdued, more refined and is wonderful with vocals. The Zhalou/ zap sounds a lot like the zap 555es but the 4398 sounds more open than the dac in the Sony. Quote Link to comment Share on other sites More sharing options...
Killercrush Posted January 2, 2008 Report Share Posted January 2, 2008 Which Zhalou is more neutral ? Quote Link to comment Share on other sites More sharing options...
Guest sacd lover Posted January 2, 2008 Report Share Posted January 2, 2008 Which Zhalou is more neutral ? I dont know. That depends on your definition of neutrality. Quote Link to comment Share on other sites More sharing options...
guzziguy Posted January 2, 2008 Report Share Posted January 2, 2008 Depends on what your definition of "is" is. Quote Link to comment Share on other sites More sharing options...
dc Posted January 3, 2008 Report Share Posted January 3, 2008 I never had any problems with the digital getting a lock, but my OMZ is a D2.0, not D2.5 like most of them out there Quote Link to comment Share on other sites More sharing options...
Cankin Posted January 3, 2008 Report Share Posted January 3, 2008 "d-cee" is owned by someone else here? Quote Link to comment Share on other sites More sharing options...
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