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2359glenn | studio - Page 601

post #9001 of 10634
Crap, no excuse to buy tubes...
post #9002 of 10634
Thread Starter 

:dt880smile: Feeling a twang from addiction?

post #9003 of 10634
Quote:
Originally Posted by slim.a View Post
 

Hi everyone,

 

I received Glenn's OTL amplifier a few weeks ago (see picture below) and I have been enjoying it very much... so much that I didn't have time to write much lately :)

 

 

.Happy tunes everyone!

Stunning amplifier!!!

 

Quote:
Originally Posted by Ultrainferno View Post
 

It's a magic stone from Patrick82's Coconut audio

 

http://www.coconut-audio.com/index.html

 

:biggrin:

What is this? cables with food?

i can´t believe

post #9004 of 10634

I guess you have to know Patrick82 to see the humor

post #9005 of 10634

Glenn let me know today mine is ready for shipment. Really 

looking forward to it. Thanks Glenn !!!

post #9006 of 10634
Thread Starter 
Quote:
Originally Posted by rnadell View Post
 

Glenn let me know today mine is ready for shipment. Really 

looking forward to it. Thanks Glenn !!!

Great! Let me me know if you need a courier. Will guarantee delivery by 31 March. :tongue_smile:

post #9007 of 10634
Quote:
Originally Posted by slim.a View Post
 

Hi everyone,

 

I received Glenn's OTL amplifier a few weeks ago (see picture below) and I have been enjoying it very much... so much that I didn't have time to write much lately :)

 

 

I posted some preliminary impressions on my blog (tweak-fi), but here is a copy of what I wrote using the ALO recabled Beyer T1s :

 

"Power tubes :

- With the two RCA 6AS7s, the sound is reminiscent of a bigger more complete LD MKIII - it is very appealing, and simple to like

- With the six RCA 6BL7s, the sound was very different : much more refined, more extended in the frequency extremes, more delicate ... but it took me some time to "get it"

 

Driver tubes (6SN7) :

- The sound with the stock 6SN7 RCA Glenn provided with the amp was neutral and dead quiet (no noticeable noise floor with my Beyer T1s)

- The sound with Sylvania 6SN7W was very nice : more refined, richer and warmer than the "stock" RCA. However, the noise floor is higher than the stock one, though once the music is playing, it goes slightly unnoticed

- The sound with the VT231 6SN7 Sylvania was fantastic : great timber, great soundstage and excellent resolution but there is a annoying buzzing on the right channel --> I hope it can disappear with burn-in

 

Rectifier :

- I personally didn't like much the sound of the 3DG4 tube (Westinghouse and Zenith). The sound was very "strong"/powerful but at the expense of the soundstage layering and spaciounsness

- The 5AW4 RCA worked better, especially in the soundstage department

 

I wrote those impressions after listening for only a few hours. I will post some more detailed impressions/review later on.

But the more I have listened to this amp, the more I came to appreciate what Glenn has done. It is a dynamic, fast, accurate and "rich sounding" amplifier. I was fearing that a tube amp might be too warm or not enough detailed, but the resolution of Glenn's amplifier is as good or better than anything I have had the pleasure to listen to."

 

 

Since then, I acquire the HD800s and they worked perfectly with the amplifier.

 

I am wondering about a few things though :
- Can one use six 6SN7s on the amplifier instead of six 6BL7s?
- Would the gain of 6SN7s be higher or lower than that of the 6BL7s (in the output stage)?
- Has anyone tried anything than the 3DG4/5AW4s as rectifiers for Glenn OTL amps?
- I looked around for "modern" 6SN7s to try - and I came across the Sophia ones. Did any one try that brand? Is it really low noise?
 
I will write a detailed review of Glenn's amplifier in the coming weeks as I get a better hold/understanding on the sound with both the Beyer T1s and HD800s. 
 
Happy tunes everyone!

 

 

Thanks for the nice review

 

I think using 6SN7s as outputs is OK as long as you are using hi impedance

headphones like the HD800.

I don't really remember how they sounded in Stavros amp. Once he put in

The 6BL7s it sounded so good that he never put the 6SN7s back in.

Of corse his amp can use 8 of them and get lower impedance then yours

Also I think you can use lower cost 6SN7s for the output even Sovteck will work

The good sound comes from the driver.

 

post #9008 of 10634
Quote:
Originally Posted by Silent One View Post
 

Great! Let me me know if you need a courier. Will guarantee delivery by 31 March. :tongue_smile:

No Insurance !!!!!

post #9009 of 10634
Thread Starter 
Quote:
Originally Posted by rnadell View Post
 

No Insurance !!!!!

OH... it'd be insured while in my possession... and arrive in 2 days... fully burned-in. :wink:

post #9010 of 10634
Quote:
Originally Posted by rnadell View Post
 

No Insurance !!!!!


You don't trust USPS.

I am boxing up your amp as we speak using foam tubes as usual.

I will use insurance I really don't trust them.

post #9011 of 10634
Thread Starter 

I trusted them better when they were better staffed; less financial stress. 

post #9012 of 10634

Glenn, usps is fine, that thread was a response to Silent One, nothing more. 

I ship exclusively by usps. thanks and please use the pobox

post #9013 of 10634

Glenn, please remember to copy SO the tracking number for Richard's amp.

We will want to keep an eye on it during transport...just in case...:D 

post #9014 of 10634
Thread Starter 

I'm simply offering burn-in services... who's got time for that? :evil:

post #9015 of 10634
Quote:
Originally Posted by parbaked View Post
 

Glenn, please remember to copy SO the tracking number for Richard's amp.

We will want to keep an eye on it during transport...just in case...:D 


You guys can't be trusted !!!!!!!

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