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Project Ember Tube Rolling - Page 29

post #421 of 2684
Quote:
Originally Posted by btrancho View Post

Probably not but check with Jeremy to be sure.  The integrated Supercharger is built right into the circuit board.  The retrofit has to stand over some small capacitors and needs an extra 1/4" or so.  I'd assume that the v 2.0 is the same height as the original Ember w/o the taller standoffs that come with the retrofit.

Since the chassis extends out the same top and bottom near the volume pot, it's really just a matter of mounting the knob not too far back on the shaft so that it doesn't hit the chassis. No modification of the chassis should be need in either case.  All I did was make sure that I tightened the hex screws while the knob had about 1 mm clearance.  It works smooth as silk and the larger diameter gives better fine control.

Again, to be sure check with Jeremy first.  He is very helpful and has seen and mounted this knob.

Thanks for your detailed answer. Already emailed Jeremy about the knob. Hopefully, he can do the job, I mean, I know he can. He's the man!
post #422 of 2684

Hello guys, I was just about to buy a Little Dot MK 3 or 4 tube amp, then I read another post about this Ember. Maybe somebody can help sway me if you could answer any of these questions:

 

How does the general sound signature compare on the Ember to the Little Dot (in what ways)? Since this only has 1 tube which is thicker, does this actually give comparable performance to the two tubes that the other one uses? Also how do you change the gain setting? (I looked carefully at many photos and never saw where the gain switch is).

 

If everything seems to line up then I'll start researching about tubes for this too. Thanks!

post #423 of 2684
I can't answer for the comparison, but you have to open the top cover to change the gain setting. It is a jumper.

Also interested for the comparison with LD amp.
post #424 of 2684
Quote:
Originally Posted by DecentLevi View Post
 

Hello guys, I was just about to buy a Little Dot MK 3 or 4 tube amp, then I read another post about this Ember. Maybe somebody can help sway me if you could answer any of these questions:

 

How does the general sound signature compare on the Ember to the Little Dot (in what ways)? Since this only has 1 tube which is thicker, does this actually give comparable performance to the two tubes that the other one uses? Also how do you change the gain setting? (I looked carefully at many photos and never saw where the gain switch is).

 

If everything seems to line up then I'll start researching about tubes for this too. Thanks!

 

Project Ember manuals can be found here..

 

http://www.garage1217.com/MANUALS/EMBER%20MANUALS/

post #425 of 2684
Hi there, I am new to the forum but have been a lurker for a while now. I wanted to ask if anyone feels it's worth the extra cost and effort to get balanced and matched triodes for tubes for the Ember? I'm thinking it may help since the amp is only using one tube but I'm not quite sure. Any experience and input is appreciated. Thank you!
Kind Regards,
Jason
post #426 of 2684
Quote:
Originally Posted by Zorrofox View Post
 
Quote:
Originally Posted by DecentLevi View Post
 

Hello guys, I was just about to buy a Little Dot MK 3 or 4 tube amp, then I read another post about this Ember. Maybe somebody can help sway me if you could answer any of these questions:

 

How does the general sound signature compare on the Ember to the Little Dot (in what ways)? Since this only has 1 tube which is thicker, does this actually give comparable performance to the two tubes that the other one uses? Also how do you change the gain setting? (I looked carefully at many photos and never saw where the gain switch is).

 

If everything seems to line up then I'll start researching about tubes for this too. Thanks!

 

Project Ember manuals can be found here..

 

http://www.garage1217.com/MANUALS/EMBER%20MANUALS/

I have done the LD3 and Ember side by side and sold the LD3 later as it got little play time. The LD3 is a terrific amp in its own right. It has a warm, rich sound.

 

The reasons the Ember stayed:

 

Much more power

Can play phones from 32 ohm to 600 with authority. LD3 cannot go below 300 ohm.

Tube rolling:

          One tube--less $$

           6 and 12 volt tubes

           Auto bias--huge selection

           Can handle heater currents over 1 amp

Less heat due to SS outputs

Made in USA--customer service second to none

Selectable gain, output resistance, input attenuation

Lighter weight--smaller footprint

Incredible sound

Schematic available

 

That's all I can think of for now--I'm at work

post #427 of 2684
Quote:
Originally Posted by rmouser View Post
 

I have done the LD3 and Ember side by side and sold the LD3 later as it got little play time. The LD3 is a terrific amp in its own right. It has a warm, rich sound.

 

The reasons the Ember stayed:

 

Much more power

Can play phones from 32 ohm to 600 with authority. LD3 cannot go below 300 ohm.

Tube rolling:

          One tube--less $$

           6 and 12 volt tubes

           Auto bias--huge selection

           Can handle heater currents over 1 amp

Less heat due to SS outputs

Made in USA--customer service second to none

Selectable gain, output resistance, input attenuation

Lighter weight--smaller footprint

Incredible sound

Schematic available

 

That's all I can think of for now--I'm at work

 

^ What he said. All of it. ^

post #428 of 2684

+1 for @rmouser - your real-world findings seems to match all the research I've found on the Ember 2 versus Little Dot 3/4 online... I dare you to post that message above on the Little Dot Tube Rolling thread LOL! Anyway I'll have to wait until June to afford the new Ember 2.

 

PS- does auto bias mean auto detection / compensation for of how many ohms the headphone has? That's my best guess

post #429 of 2684
Quote:
Originally Posted by DecentLevi View Post
 

+1 for @rmouser - your real-world findings seems to match all the research I've found on the Ember 2 versus Little Dot 3/4 online... I dare you to post that message above on the Little Dot Tube Rolling thread LOL! Anyway I'll have to wait until June to afford the new Ember 2.

 

PS- does auto bias mean auto detection / compensation for of how many ohms the headphone has? That's my best guess


Auto bias is for the voltage to the tube.  For the other Garage 1217 amps you need to adjust the bias manually.

 

The output resistance/impedance (ohms) is adjusted by moving jumpers on both sides of the ember and a few of the other Garage 1217 amps.

post #430 of 2684

It also allows you the option of by-passing the input capacitors by moving another pair of jumpers.

 

The Mk1 allowed this too but it resulted in a scratchy volume pot. That's been fixed in the Mk2 model.

post #431 of 2684
Quote:
Originally Posted by DecentLevi View Post
 

+1 for @rmouser - your real-world findings seems to match all the research I've found on the Ember 2 versus Little Dot 3/4 online... I dare you to post that message above on the Little Dot Tube Rolling thread LOL! Anyway I'll have to wait until June to afford the new Ember 2.

 

PS- does auto bias mean auto detection / compensation for of how many ohms the headphone has? That's my best guess

It is generally not wise to go out of your way posting on alternative equipment threads that you personally find something else to be superior. ...often results in heated arguments and subsequent moderator action. this hobby is pretty personal and subjective, so different people find different things better suited for their needs. people deciding between equipment just need to do their own due diligence and research from both threads to get a good sense of what fits them the best.

 

auto bias is related to adjusting for the tubes used, not the headphones. Quote from Project Ember's website: "auto bias, be able to change heater voltages by simply plugging in a tube AND let you roll in a very wide range of dual triodes."

http://www.garage1217.com/garage1217_diy_tube_headphone_amplifiers_004.htm

post #432 of 2684

Is the 6SN7 adapter still applicable to the version 2 ember?  In the pull down it only references Ember 1

post #433 of 2684
Quote:
Originally Posted by merlot View Post
 

Is the 6SN7 adapter still applicable to the version 2 ember?  In the pull down it only references Ember 1

 

Yes, it still needs to be bought separately but the same adapter fits both Mk1 & Mk2.

post #434 of 2684

I'm confused by something being newish to hifi: What is the whole deal with the Ember not being a "real" tube amp, and being a hybrid? What's the technical difference in how a "real" tube amp works and how Ember works? Is one of these methods fundamentally better? People seem awful happy with ember for it being a hybrid, and I wondered what potentially would be missed out on by using Ember and not something else. 

 

I'm carefully considering this upgrade. Please excuse the ignorance, my questions aren't meant to be offensive. 

post #435 of 2684
Quote:
Originally Posted by jbarrentine View Post
I'm confused by something being newish to hifi: What is the whole deal with the Ember not being a "real" tube amp, and being a hybrid? What's the technical difference in how a "real" tube amp works and how Ember works? Is one of these methods fundamentally better? People seem awful happy with ember for it being a hybrid, and I wondered what potentially would be missed out on by using Ember and not something else. 

 

I'm carefully considering this upgrade. Please excuse the ignorance, my questions aren't meant to be offensive. 

 

http://www.head-fi.org/t/482283/tube-amp-vs-solid-state-amp-vs-hybrid-amp

http://www.head-fi.org/t/481847/solid-state-vs-tubes-which-one-s-and-why-plus-more

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