[minimus]

I noticed that Todd no longer shows the amp on his website, but it also no longer shows a lot of other amps he used to carry. Maybe if you offer him the $6K or so he charges for the amp, he and Pete will build one for you.

 

[DavidMahler]

I would love to be able to do some tube rolling to give certain headphones more warmth. Any suggestions?

 

[trevorlane]

I'll be getting a pair of Sylvania 307As from n_maher this weekend, I'll let you know how they sound once I get em on.

 

[Seamaster]

Todd has technical problems with his new website right now.

 

[n_maher]

Quote:

Originally Posted by trevorlane /img/forum/go_quote.gif I'll be getting a pair of Sylvania 307As from n_maher this weekend, I'll let you know how they sound once I get em on.

I'll add that I think you'd have more luck "tuning" the sound of the amplifier by rolling input tubes, not output tubes. One could just as easily make a loctal to octal adapter (or have one made) that would allow the use of any number of the 6SN7 variants that exist.

[edit]I'd also add that I don't think we've see the last of Todd and Pete and high-end headphone amps, but that's my own personal suspicion and not grounded in fact.

 

[trevorlane]

Quote:

Originally Posted by n_maher /img/forum/go_quote.gif I'll add that I think you'd have more luck "tuning" the sound of the amplifier by rolling input tubes, not output tubes. One could just as easily make a loctal to octal adapter (or have one made) that would allow the use of any number of the 6SN7 variants that exist. [edit]I'd also add that I don't think we've see the last of Todd and Pete and high-end headphone amps, but that's my own personal suspicion and not grounded in fact.

I will give that a try as well, thanks Nate.

I hope you're right, even with my really limited experience with headphone amps, I've had a great time with this one. I'd like to hear another one of their tube creations again someday.

 

[pabbi1]

A true loss - the best dynamic headphone amp I have ever heard. Period.

 

[Nicola]

Hi all
I'm very intrest of this 3d, I have the #7
Beatiful amp, I use with K1000, 702, HD800, HF2
I have Ken Rad, Sylvania, Raitheon power tubes
In this days I receive many '40-'50 years 7N7 tubes
I don't like jan (1975...), good '60 tubes (copper grids), but '40-'50 tubes is very good.
I use this now

http://img269.imageshack.us/img269/5521/dscn0332t.jpg

The sound is very detalied, great headstage, great extension to high frequencies

I have many rectifier tubes

Will I need time

sorry for my english

 

[trevorlane]

Quote:

Originally Posted by Nicola /img/forum/go_quote.gif Hi all I'm very intrest of this 3d, I have the #7 Beatiful amp, I use with K1000, 702, HD800, HF2 I have Ken Rad, Sylvania, Raitheon power tubes In this days I receive many '40-'50 years 7N7 tubes I don't like jan (1975...), good '60 tubes (copper grids), but '40-'50 tubes is very good. I use this now http://img269.imageshack.us/img269/5521/dscn0332t.jpg The sound is very detalied, great headstage, great extension to high frequencies I have many rectifier tubes Will I need time sorry for my english

Congratulations and welcome to the club. I'm #9. I'm using Sylvania 307As from n_maher, and I've noticed a change in the sound that's different from the Ken-Rads. Now the disclaimer is that a channel input issue in the L/R channels was discovered, but I spent some time with the Ken-Rads and Sylvanias on a remaining channel that was fine. I believe 4N6 or another 307A owner had changed to Sylvanias and said that there was better clarity in the sound. For myself I found the same result as well as far more authority in the drive of the sound (of course this may be attributed to not having the channel imbalance issue.)

 

[Nicola]

It's small club!
I don't have problem of balance with my tubes
In this power tubes the difference is little, Sylvania is lighly detalied compare to Ken Rads, Raitheon is similar to Sylvania. I see in photo National Union but the construction is similar to Sylvania/Raitheon.
For gain the first is Sylvania > Ken Rad > Raitheon
Very good 7N7 tubes is '40-'50 years , which 7N7 uses now?

 

[trevorlane]

I'm using the 7N7 that came with the amp, however I'm going to give 6SN7s a try once an adapter is located and try those tubes. Nate says they should work with the adapter with little or no issue. Once I get the adapter + tubes I'll post my impressions.

Edit: actually nikongod answered on the first page (i need to take a break from reading posts...)

 

[Nicola]

Thank you very useful, considering the purchase of 7N7 of the first '40 or '50 years, i like this tubes.
You have pm with photo of my old 7N7 tubes, I also need time to hear all.