Cut
Just cut the ones you need and leave the rest connected. You can buy a new piece of ribbon cable any where if you ever want to put it back. When you cut the leads going up to the output connectors, bend only the part coming up from the board to make a gap. If you try to bend the part going into the connector, it will snap off way up inside. Leave pin 1 connected for the ground.
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Just cut the ones you need and leave the rest connected. You can buy a new piece of ribbon cable any where if you ever want to put it back. When you cut the leads going up to the output connectors, bend only the part coming up from the board to make a gap. If you try to bend the part going into the connector, it will snap off way up inside. Leave pin 1 connected for the ground.
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Inspirational!
Fantastic help! Thanks again to all. Very reassuring to know the ribbon cable can be purchased, as that means it really IS reversible -- but I don't see that happening. I will be doing this surgery as soon as schedule permits.
The transformers I'm using are a little too tall to fit inside the case, so I will be taking the signal out from the ribbon cable wires, and putting the transformers in a separate chassis. Using the XLRs is attractive, but it would require more hardware on the transformer side than I would prefer. I was planning to look for small connectors, maybe 3 x 4 connections...
Nice work! What kind of transformers are you using there? It looks like the case still fits together and looks stock!
The transformers I'm using are tapped on the secondary to permit matching attenuation-matching with various driver & amp setups. For now I mounted them on 1.5" aluminum angle stock.
I really have several projects going where I can use a box like this. In the workshop I have a Lambda TD15M in 8 cu. ft. box with JBL 2441 on top, Truextent diaphragm on the way; wood horn in progress. In the living room I will have to part with Tannoy GRF-Rs to make room for TAD 2402 clones (TAD 1601 + 4001 + yuichi wood horn), RAAL ribbon on top. Basement system is giant backloaded horn, 30 cu ft with JBL LE14B. Building 45 amps for compression drivers, using 845 amps on bottom. Just started setting up old computer with new 2TB drive and vortexbox to use as music server.
Work is getting in the way of my hobby, but somehow I proceed on multiple fronts, albeit slowly.
Fantastic help! Thanks again to all. Very reassuring to know the ribbon cable can be purchased, as that means it really IS reversible -- but I don't see that happening. I will be doing this surgery as soon as schedule permits.
The transformers I'm using are a little too tall to fit inside the case, so I will be taking the signal out from the ribbon cable wires, and putting the transformers in a separate chassis. Using the XLRs is attractive, but it would require more hardware on the transformer side than I would prefer. I was planning to look for small connectors, maybe 3 x 4 connections...
Nice work! What kind of transformers are you using there? It looks like the case still fits together and looks stock!
The transformers I'm using are tapped on the secondary to permit matching attenuation-matching with various driver & amp setups. For now I mounted them on 1.5" aluminum angle stock.
I really have several projects going where I can use a box like this. In the workshop I have a Lambda TD15M in 8 cu. ft. box with JBL 2441 on top, Truextent diaphragm on the way; wood horn in progress. In the living room I will have to part with Tannoy GRF-Rs to make room for TAD 2402 clones (TAD 1601 + 4001 + yuichi wood horn), RAAL ribbon on top. Basement system is giant backloaded horn, 30 cu ft with JBL LE14B. Building 45 amps for compression drivers, using 845 amps on bottom. Just started setting up old computer with new 2TB drive and vortexbox to use as music server.
Work is getting in the way of my hobby, but somehow I proceed on multiple fronts, albeit slowly.
Right- I can put the cover on with no problem, which was my goal. I used the Jensen JT-11-DMPC, which gave me distortion maybe 20 or 30 dB lower than the Lundahls I had available (1690 and 1676). Maybe I just wasn't using the right model, not sure; but using the biggest core I could fit made a world of difference in the bass distortion. These Jensens showed a THD of IIRC 0.002% at 20Hz with favorable waterfall of 2nd, 3rd, 5th. Most of which was due to the D/A, not the transformer. As frequency increased, it only got better.
Do you happen to know the rated inductance on the primary? The ones I'm using for bass are rated 50hy, and half that for mids, and half THAT for highs...
Horns
Have you seen the JMLC and Iwata horns Jack is selling?
.
http://www.diyaudio.com/forums/group-buys/166312-waveguides-horns-49.html#post2533980
.
Have you seen the JMLC and Iwata horns Jack is selling?
.
http://www.diyaudio.com/forums/group-buys/166312-waveguides-horns-49.html#post2533980
.
Sorry, never bothered to measure that once I confirmed low distortion. Since with the DCX you can be flexible with the outputs, I didn't want to limit myself to using a specific channel for a fixed frequency range. But I did consider it in order to save some cost. In the end, I put in the best I could fit covering the entire audio spectrum on each channel. Now it is truly a black box; don't care what it inside. Program and go.
WOW. No, I hadn't seen those. Very interesting... I considered a pair of the Azura horns used in the Beyond the Ariel project, for use down to 600 or 650 hz, but instead will do it with wood plus the diaphragm upgrade that allows me to go all the way down to 400 if I want.
hi,
My deq2496 has lost all the buttons,knobs on the right side, none of them work,checked the power supply all is ok checked the front panel from another unit it works all the buttons work,so it's not in the front panel assembly,it's from a later model so I can't compare much,I did check the crystal clocks ,one is working and the q2 is not ,I have no schematic ,This is a early unit ver 1.3 on eprom,
I did check the caps and voltage all is the same as the one clock that is working ,don't have a 22.579 crystal to try,,,,,,
any help is appreciated,
My deq2496 has lost all the buttons,knobs on the right side, none of them work,checked the power supply all is ok checked the front panel from another unit it works all the buttons work,so it's not in the front panel assembly,it's from a later model so I can't compare much,I did check the crystal clocks ,one is working and the q2 is not ,I have no schematic ,This is a early unit ver 1.3 on eprom,
I did check the caps and voltage all is the same as the one clock that is working ,don't have a 22.579 crystal to try,,,,,,
any help is appreciated,
Well.....
Got it fixed found the clock signal at Q2 wasn't there,found alot of solder under it and removed it,checked out ok on a crystal checker and my scope ,I used a bench supply That I made to supply the power,checked one voltage at a time for load problems all ok Powered it up and it clicked and had a reading in a lower part of the scale about 100 hz,had been the upper end,anyway powered off and connected a mic,powered on and adjusted for mic in and it's working again the clock Q2 must supply the needed clk for that side,all the buttons respond now !
Cheers
Got it fixed found the clock signal at Q2 wasn't there,found alot of solder under it and removed it,checked out ok on a crystal checker and my scope ,I used a bench supply That I made to supply the power,checked one voltage at a time for load problems all ok Powered it up and it clicked and had a reading in a lower part of the scale about 100 hz,had been the upper end,anyway powered off and connected a mic,powered on and adjusted for mic in and it's working again the clock Q2 must supply the needed clk for that side,all the buttons respond now !
Cheers
192KHz ??
Hi,
I have Oettle Clock upgrade and the AK-4396 DAC chips installed in my DCX.
Since the 4396's support 192KHz, does this mean I can start purchasing music in 24/192KHz instead of 24/96?? Or is the DCX limitied to 96KHz by the DSP chip inside the DCX??
Thanks
CM
Hi,
I have Oettle Clock upgrade and the AK-4396 DAC chips installed in my DCX.
Since the 4396's support 192KHz, does this mean I can start purchasing music in 24/192KHz instead of 24/96?? Or is the DCX limitied to 96KHz by the DSP chip inside the DCX??
Thanks
CM
IMHO, if you still have the genuine CS 8420, then you are limited to 96 Khz. Some Selectronic clock upgrade come with a CS 8416 that's OK for 192 Khz, I dunno for the Oettle.
The Oettle clock involves replacing the CS-8420 with CS-8416,, which also supports up to 192Khz..
But my concern is I think it is limited by the CPU inside the DCX (??)
CM
Alas Radugazon,, I have no 24/192 content.. My only option is to purchase such content..
But before I do,, I am wondering if it is to be processed natively, or down-converted to 96KHz by the CPU ..??
Ta
CM
hummm, we have this in this same thread , page 55, by Frank Oettle himself:
Looks like you just come saving money !
Looks like you just come saving money !
Thanks Rad..
Intersting stuff.. So,, what does this all mean?? That the answer to my question is perhaps not so easy
Ta
CM
Intersting stuff.. So,, what does this all mean?? That the answer to my question is perhaps not so easy
Ta
CM
I'm not sure at all, but maybe an answer with this: it's a signal compressed in Ogg Vorbis BUT with a 192 Khz sample rate. Only one problem : it's a 16 bits (my stuff is ok for 16 or 32 floating only). You just have to unzip, can be played with Winamp, be sure that your soundcard is in 24/192.
Doesn't the DSP run at 96Khz anyway? I.E. everything will get converted to that. Not sure, but I think so.
Yes, DCX246 DSP does run @ 96 kHz (see somewhere above ,-).
An ASRC (CS8420, AD1896, CS4192) has to sample to 96 kHz to make DCX working.
My Oettle SRC/Clock did play 192 kHz - lucky me...
CS4192 is said to be pin compatible with AD1896 and will run the 192 kHz without an extra clock.
hth
Ulli
An ASRC (CS8420, AD1896, CS4192) has to sample to 96 kHz to make DCX working.
My Oettle SRC/Clock did play 192 kHz - lucky me...
CS4192 is said to be pin compatible with AD1896 and will run the 192 kHz without an extra clock.
hth
Ulli
Thanks guys for your feedback..
Thanks for sample file,, I will try tonight.
Yes, my question was that the DSP converted everything to 96KHz,, tha'ts why I wonder if sticking to 24/96 music files might be best option as anything else is just up/down converted to 96KHz anyway..
I did some research and found the Oettle clock is limited to 178KHz.
Cheers..
CM
Thanks for sample file,, I will try tonight.
Yes, my question was that the DSP converted everything to 96KHz,, tha'ts why I wonder if sticking to 24/96 music files might be best option as anything else is just up/down converted to 96KHz anyway..
I did some research and found the Oettle clock is limited to 178KHz.
Cheers..
CM