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2359glenn | studio - Page 377

post #5641 of 10999
our OTL supports all the 7236/6AS7G/6080/5998/421A tube types right?
Yes It can take all these.
And it can drive lower impedance headphones if you try 6336 output tubes
inplace of the 6AS7. you just have to use a powerful rectifier with them.
3DG4 , 5AU4 , GZ37 no 5U4G maybe a 5U4GB or 596 will work with these tubes.
post #5642 of 10999
Quote:
Originally Posted by dminches View Post

What do you guys mean by an amp sounding fast?


Faster transient and impulse response.  Something SS amps are traditionally better at than tube amps, but it all comes down to design.  Generalizations mean nothing in the face of talented design I have found.

post #5643 of 10999
Quote:
Originally Posted by Xcalibur255 View Post
 


Glenn's OTL design is much more flexible than the WA2, it drives low impedance headphones with authority which is unusual for an OTL design.  It has moved away from the 5998 toward the 6336 because both Glenn and I have had headphones blown up by 5998 tubes with shorts.  The 6336 is a demanding tube in terms of current draw, most of the rectifiers you mention are not usable with this setup.  Even the 6AS7 will overtax many of them.  But, like I mentioned the other day the 3DG4 sounds really good and costs nothing.  Why spend all that money on different tubes when you don't gain anything from it in terms of performance?  If you like to roll just to get different flavors the 6SN7 driver stage is the one to roll for fun.

 

Just my 02 cents.

 

i guess i just like tube rolling and the fact that i already have all those rectifiers

 

whats the 3DG4 like?

post #5644 of 10999

I own a few pairs of shoes. Each serves its purpose. If I had to decide on one shoe to be the best of all shoes it would drive me nuts--let alone wreck my feet. That's why I own a few amps and a few headphones and why I don't really try to best one over the other. Just saying. :) Right Ultra- ?

post #5645 of 10999

i would probably be happy with glenn otl, stratus, and WA2, hope it doesn't end up like that. 

post #5646 of 10999
I probably end up with beta22, wa5le, Glenn otl, and set amp.
post #5647 of 10999

of course i'll keep my GSX MK2 in that list as well :D

post #5648 of 10999
I almost offered to get it from you.biggrin.gif
post #5649 of 10999

Building this amp I realize why I stopped using the small chassis

The new power transformer I am using is larger and I am having a problem

fitting everything on the top of the chassis. so I have to move the filter

capacitor under the chassis ware there is already no room.

Putting 100lbs of s**t in a 10lb bag

post #5650 of 10999
Quote:
Originally Posted by 2359glenn View Post

Building this amp I realize why I stopped using the small chassis
The new power transformer I am using is larger and I am having a problem
fitting everything on the top of the chassis. so I have to move the filter
capacitor under the chassis ware there is already no room.
Putting 100lbs of s**t in a 10lb bag

Glenn you can say that again, the transformer on your otl amp is the biggest I've seen on a headphone amp. Do you guys think an good quality ac cord will make a difference on Glenn otl amp? In my experience all my equipment have improved from a good quality cable. nothing up in the stratosphere price wise but most of my cables range from 50 to 250.00.
post #5651 of 10999
Quote:
Originally Posted by Neogeo333 View Post


Glenn you can say that again, the transformer on your otl amp is the biggest I've seen on a headphone amp. Do you guys think an good quality ac cord will make a difference on Glenn otl amp? In my experience all my equipment have improved from a good quality cable. nothing up in the stratosphere price wise but most of my cables range from 50 to 250.00


The transformer in your amp is bigger then the rest because the filaments of these tubes are power hogs.

that transformer has a separate 6.3 volt winding for the BL63 and the voltage quadrupler for the multi

voltage 6SN7s.

The transformer that I use in my other OTLs is not much smaller

I don't use that transformer much because it costs to much to ship the amp. And it would be way to much

to ship that amp to Europe .

I think a quality 14ga or 12ga power cord would help nothing ridicules in price though.

post #5652 of 10999
Just got a Pangea AC-9SE. The plain AC-9 did wonders on my other amp and I believe it will improve on Glenn amp too.
post #5653 of 10999
I like the iron lung jelly. Nothing can beat it for the price. You all realizes the wire inside the wall are crappy? I don't believe in power cable as much as single or headphone cables unless the power goes thru a power regenerator.
post #5654 of 10999

I use a single high output AC power isolation transformer for all of my video and audio equipment. It helps to get some of the crud out of the AC mains. A double conversion power regenerator will cost more money than I have for the equipment on hand. Here is a bit of my history on this subject.

http://www.head-fi.org/t/428570/woo-audio-amp-owner-unite/17430

post #5655 of 10999
Thread Starter 
Quote:
Originally Posted by jc9394 View Post

I probably end up with beta22, wa5le, Glenn otl, and set amp.

 

Being content most of the time, I'll probably end up with four corners, an iPod....... and :evil:da killa playlist!

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