olindh
valued member
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Post by olindh on Aug 12, 2015 21:58:18 GMT
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solderdude
Administrator
measureutternutter
Posts: 4,886
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Post by solderdude on Aug 13, 2015 4:51:30 GMT
MAYBE it could with the proper adapter.
That last part may be tricky
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olindh
valued member
Posts: 11
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Post by olindh on Aug 13, 2015 16:43:32 GMT
MAYBE it could with the proper adapter. That last part may be tricky I see. Maybe I will pass. Thanks for the answer. |
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oldson
extremely active
Posts: 1,678
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Post by oldson on Aug 13, 2015 18:05:42 GMT
it appears i have missed a few changes lately.
i am curious to know the differences between the Ember 2 and my original version?
cheers
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Post by jhelms on Aug 13, 2015 20:15:54 GMT
From the site  Ember 2.0 board rev: We have a new version of Ember that will start shipping on or before the 1st of May! Here are the facts Supercharger will now be built into ember and will be the default tube heater powerplant. With this comes a price increase over the base model Ember which will go from $324.99 to $349.99. However this means a price REDUCTION for persons planning on purchasing a supercharged Ember! Old supercharged price was $364.99 / now $349.99 (as stated previously). We passed the savings along / $15 cheaper. This means hard to power tubes like 6n6p, 6n30p, some 6sn7's... all are powered with ease just as the supercharger offered before! Line out disconnect for the pre-out is now standardized on Ember (can be changed via two solder jumpers) This means when you plug in headphones, the line out is disconnected Like our other designs, a quick change input attenuation module is now on-board. This means you can change the input level which gives you infinite adjust-ability vs. fixed settings when it comes to gain - further resolving volpot range issues with different efficiency headphones. There are also two quick change jumpers to change between default fixed gain and the customizable attenuation module Many will think OH CRAP, my rev 1.0 Ember is obsolete! NOPE. Ember 2.0 features the EXACT same loved sound as Ember 1.0 With just a sprinkle of changes that we have been wanting to implement. The changes are subtle enough we considered just a .1 rev bump but with the addition of the SC on-board, it was felt the 2.0 designation was warranted. |
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Deleted
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Post by Deleted on Aug 16, 2015 23:39:28 GMT
Just come across a pair of PCC88 valves I was given as a gift a while back.
I know the Ember supports 6v & 12v valves but from memory the PCC88 are 7v. I was about to rule them out but noticed a comment on Upscale that suggested it may be possible to use them in place of an ECC88/JDJ8:
"7DJ8/PCC88 are a great choice. They are absolutely compatible with virtually any product that uses 6922 and 6DJ8 Whether it's an amp, preamp, CD player, whatever. You still need to pick a good one of course. And one that meets your sonic requiremements. And Upscale Audio doesn't sell any sucky ones."
What are your thoughts guys? Safe to use with the Ember or should I steer well clear?
Cheers.
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Deleted
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Post by Deleted on Aug 17, 2015 1:04:58 GMT
I'm listening to my JVC HA-FX850 woodies at the moment. Wow, they sound great paired with the Ember. By nature they're a full bodied, warm and organic sounding IEM but plugged into the Ember they sound remarkably close to a full sized 'phone. Still can't accuse them of being detail monsters by any means but tonally very nice indeed |
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solderdude
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Post by solderdude on Aug 17, 2015 5:19:41 GMT
The PCC versions are the same as ECC versions with the only difference being the heater itself.
The ECC version = 6.3V (and draws 365mA) where the PCC version = 300mA in which case there is approx. 7V across the heater.
For the P versions the heaters are all in series where the E versions are meant to have the heaters in parallel.
Most tubes are designed to 'operate' with heater voltages/currents +/- 10% because heaters generally where fed from non regulated transformers.
The 300mA tubes thus should be able to operate on 270mA, however, with somewhat less emission as the cathode doesn't reach it's optimal temperature which it needs to operate properly.
Fortunately low voltage amps also work on low anode currents and thus do not need an 'abundance' of electrons to get into their operating point.
7V - 0.7V = 6.3V (doesn't correlate exactly though) and the heater voltage is around 6.15- 6.20V (with TSR regulator) and around 6.3V with the booster.
So right down at the minimum voltage that is 'allowed'.
Of course the tube will also 'work' with an even slightly lower voltage so you can use it but the heater is on the edge of its minimum temperature.
The often stated fear of 'anode poisoning' is only valid for high output power tubes (AFAIK)
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Deleted
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Post by Deleted on Aug 17, 2015 11:45:06 GMT
Thanks for all the info Frans!
So technically the PCC will work but might not perform optimally in the Ember. In that case I'll just stick with my trusted 6DJ8 Bugle Boy (no great hardship) until I'm in a position to try the adapter & some nice 6SN7.
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Deleted
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Post by Deleted on Aug 17, 2015 12:52:03 GMT
We need to meet up Mark. If it's at yours I'll bring the adapter & my three 6SN7's. Oh, and a decent set of headphones  |
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Deleted
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Post by Deleted on Aug 17, 2015 13:42:02 GMT
Yeah, we do mate. School is almost back so we'll get something organised. btw that sounds like fighting talk! To make things fair why don't we level the playing field and use the same source....my Z2. Heck I'll even put the Pandora to one side as I think my IEMs will stand a chance against an unamped HD650. If you insist on the Ember though then all bets are off |
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Deleted
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Post by Deleted on Aug 17, 2015 14:40:46 GMT
My 650's do NOT go near mere phones  Only the Ember will do. I could bring my MkII as well. Are you using an ODAC? |
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Deleted
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Post by Deleted on Aug 17, 2015 15:27:09 GMT
Heh, ya big....audiophile! Neither does the Pandora to be fair but it's nice to have the option. Hooked up to the Z2 it still manages to sound better than some full sized set ups I've heard. Yeah would be good if you could bring the MKII & ODAC too. Have another PC we can hook them up to so we can both be listening to stuff at the same time. Gandalf and the Magic Mushrooms or whatever takes your fancy I replaced the ODAC with a Musical Fidelity V90-DAC a wee while back. The only real gripe I had with the ODAC was some occassional 'glare' in the treble (headphone dependent) that I found a bit bothersome. The V90-DAC has resolved that and gives me a much needed optical input. Otherwise no discernible difference as far as I can tell. |
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Deleted
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Post by Deleted on Aug 17, 2015 16:32:33 GMT
See that "glare"? Not with the HD 650  |
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oldson
extremely active
Posts: 1,678
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Post by oldson on Aug 17, 2015 17:52:47 GMT
From the site Ember 2.0 board rev: We have a new version of Ember that will start shipping on or before the 1st of May! Here are the facts Supercharger will now be built into ember and will be the default tube heater powerplant. With this comes a price increase over the base model Ember which will go from $324.99 to $349.99. However this means a price REDUCTION for persons planning on purchasing a supercharged Ember! Old supercharged price was $364.99 / now $349.99 (as stated previously). We passed the savings along / $15 cheaper. This means hard to power tubes like 6n6p, 6n30p, some 6sn7's... all are powered with ease just as the supercharger offered before! Line out disconnect for the pre-out is now standardized on Ember (can be changed via two solder jumpers) This means when you plug in headphones, the line out is disconnected Like our other designs, a quick change input attenuation module is now on-board. This means you can change the input level which gives you infinite adjust-ability vs. fixed settings when it comes to gain - further resolving volpot range issues with different efficiency headphones. There are also two quick change jumpers to change between default fixed gain and the customizable attenuation module Many will think OH CRAP, my rev 1.0 Ember is obsolete! NOPE. Ember 2.0 features the EXACT same loved sound as Ember 1.0 With just a sprinkle of changes that we have been wanting to implement. The changes are subtle enough we considered just a .1 rev bump but with the addition of the SC on-board, it was felt the 2.0 designation was warranted. Jeremy/Javier thanks for the reply. could it be possible, in the future to send my Ember to Spain for an upgrade, as a cheaper option to sending it to the US? not in any rush as i want to buy a new psu , when you release them, first. cheers guys |
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