Deleted
Deleted Member
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Post by Deleted on Jul 7, 2015 23:47:30 GMT
Actually, the same goes with the Ifi Micro. Although they recommend using power so that the vol pot is between 12 and 3, i find it sounds better on turbo at 9. To listen at 3, I have to set it at low power but for me, the sound loses its bite. Yup, that's my feeling too. I don't think it's scientific though. If only we knew a mad scientist..  |
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Post by musicman on Jul 8, 2015 1:47:51 GMT
Someone call for a mad scientist? Gordon she is doing better, thank you
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Post by richard51 on Jul 8, 2015 2:10:59 GMT
i just read a review on "ember tube rolling thread" on "head fi" about the 7193 tubes.....Its confirmed what musicman, me and others after JGLATZ revelation has discovered....Nobody has listen to the Ember potential without the 7193... For me its paradise for cheap money...
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Post by matttcg on Jul 8, 2015 22:50:47 GMT
I guess that I need to try a 7193. Can someone provide a link to a good ebay seller or maybe someone has one to let go...
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dpump
valued member
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Post by dpump on Jul 9, 2015 1:32:11 GMT
I guess that I need to try a 7193. Can someone provide a link to a good ebay seller or maybe someone has one to let go... I have Ken-Rad and National Union 7193 tubes available. However, you need (2) 7193 tubes and an adaptor for the 7193's that plugs into the Garage 1217 Ember 6SN7 adaptor for it to work.
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Post by matttcg on Jul 9, 2015 23:45:02 GMT
I guess that I need to try a 7193. Can someone provide a link to a good ebay seller or maybe someone has one to let go... I have Ken-Rad and National Union 7193 tubes available. However, you need (2) 7193 tubes and an adaptor for the 7193's that plugs into the Garage 1217 Ember 6SN7 adaptor for it to work.
pm me please sir... |
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Post by matttcg on Jul 13, 2015 2:09:04 GMT
Is there a general rule of thumb for the Ember regarding how long it takes the tube/amp to warm properly and reach it's potential?
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Post by decentlevi on Jul 13, 2015 2:45:10 GMT
Hello everybody, this is my first posting on Diyah, although some of you may recognize me from Head-Fi. (If that's a banned word let me know)
I have a question about a constant buzzing sound from the 'Franken Ember' (my ember 2.0 with the dual Ken-Rad tubes via a 6SN7 and 7193 adaper). These tubes were tested to be in good condition and the tube's connection seems stable, but for some reason there is a constant buzzing sound which is only present on the 7193 setup. Can anyone tell me a possible solution, like perhaps power conditioning / changing the power chord, or maybe a 1/4" external volume knob? Thanks in advance!
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Post by richard51 on Jul 13, 2015 2:52:59 GMT
welcome DecentLevi ... i am sure that Jeremy or Franz will have some solutions....... By the way is this sound in the two left and right ears or only in one ears?
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Deleted
Deleted Member
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Post by Deleted on Jul 13, 2015 14:08:27 GMT
Came back after a few days away to find an iFi -24db attenuator sitting on the doormat.
Very nicely made with decent looking cabling and connectors.
Just had a quick go with the Pandora and seems to do the job very nicely. Now have plenty of play on the volume pot on low output R (roughly 11 o'clock is about right for comfy listening levels) and it's cleared up the audible hiss that I previously noticed even with the volume pot at 0. Haven't done a lot of critical listening thus far but asides from the volume reduction I'm not noticing any obvious degradation in SQ.
One thing I'm really hearing with the Ember is just how much the flavour / characteristics of my valves come through in what I'm hearing, which I do like. The Lyr by comparison tends to have a base sound that is far more subtly influenced by the valves I'm using. Horses for courses but I think I prefer the full fat presentation the Ember gives me.
@ matttcg & decentlevi - welcome guys!
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Post by matttcg on Jul 14, 2015 22:34:09 GMT
I'm looking for hd800 owner to comment on how Project Ember pairs with that headphone.
thanks...
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olindh
valued member
Posts: 11
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Post by olindh on Jul 19, 2015 11:47:31 GMT
Hello everybody, this is my first posting on Diyah, although some of you may recognize me from Head-Fi. (If that's a banned word let me know) I have a question about a constant buzzing sound from the 'Franken Ember' (my ember 2.0 with the dual Ken-Rad tubes via a 6SN7 and 7193 adaper). These tubes were tested to be in good condition and the tube's connection seems stable, but for some reason there is a constant buzzing sound which is only present on the 7193 setup. Can anyone tell me a possible solution, like perhaps power conditioning / changing the power chord, or maybe a 1/4" external volume knob? Thanks in advance! Hi! I had the same problem and found out that it was a combination of two things. It needs a connection to ground and the tubes need to have a better shielding. I put my Ember in a metal chassis and grounded the output capacitors to the chassis. Now my Ember is dead quiet with the 7193 setup. If someone has a more simple solution I will be happy to hear about it. |
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obo78
valued member
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Post by obo78 on Jul 22, 2015 19:31:47 GMT
While the ability to switch the R jumpers during use is quite handy, switching the gain is a different issue. My hd650 like low gain, while planar mag hp's need high gain. This is somewhat of a weakness in an otherwise stellar amp. A toggle switch for gain would be my best Christmas ever! Christmas in July (if you are willing to do a bit of soldering). I replaced the JP2 jumper pins that switch the input gain from low to high with a pair of switches. These are specifically designed to replace jumpers. They are Apem part# NK236H and were $2.97 each from Digi-Key. Make sure to get the version with "H" at the end as these have a raised actuator that is easier to move without opening up the Ember. ![]()   Also note: These switches reverse the high/low positions. When the actuator is toward the back of the board (the "LG" side) the gain will be HIGH. When you slide it toward the "HG" indicator the gain will be LOW. Bob |
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z3d
quite active
Posts: 170
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Post by z3d on Jul 22, 2015 20:23:25 GMT
Nice one obo, quite useful!  |
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solderdude
Administrator
measureutternutter
Posts: 4,886
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Post by solderdude on Jul 23, 2015 10:43:30 GMT
Hello everybody, this is my first posting on Diyah, although some of you may recognize me from Head-Fi. (If that's a banned word let me know) I have a question about a constant buzzing sound from the 'Franken Ember' (my ember 2.0 with the dual Ken-Rad tubes via a 6SN7 and 7193 adaper). These tubes were tested to be in good condition and the tube's connection seems stable, but for some reason there is a constant buzzing sound which is only present on the 7193 setup. Can anyone tell me a possible solution, like perhaps power conditioning / changing the power chord, or maybe a 1/4" external volume knob? Thanks in advance! Hi! I had the same problem and found out that it was a combination of two things. It needs a connection to ground and the tubes need to have a better shielding. I put my Ember in a metal chassis and grounded the output capacitors to the chassis. Now my Ember is dead quiet with the 7193 setup. If someone has a more simple solution I will be happy to hear about it. Yes, it is very likely it is some kind of interference being picked up. The 7193 has 2 top connections as this tube was designed for very high RF frequencies. In order to get the best HF response a tube has to have the lowest possible capacitance and shortest possible wires. The manufacturer did this by using short leads kept well away from the other leads (heater, cathode etc) by using top connections. Most tubes with top connectors are used for higher voltages and connects the anode to the top pin so there is no chance of arcing in the tube socket. In case of the 7193 tubes the cathode and grid are connected up top. The Anode is connected to the socket. The cathode is insensitive for audible frequencies and well above them in these types of amps so running these outside with wiring is no problem. Both the grid and anode are connected to relatively high impedance circuits in these amps so can pick up 'nasties' from the air quite easily. The biggest disadvantage of open frame circuits and the main reason most amps are encased in metal enclosures that are connected to the signal ground. So ... if there are transformers, power supplies, wireless things (Wifi, bluetooth, cell phone, wireless housephones etc.) in its vincinity chances are the 7193 tubes having long wires connected to the grid and large surface area anodes connected with much wires (2x adapter) pick up things. Moving the amp away (or the gear inducing nasties), playing with grouning (connecting to safety ground, central heating, waterpiping (when copper) or screening it may remove these problems. It should be noted that it may be difficult at times to determine what exactly is inducing hum or other sounds. |
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