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Headamp Blue Hawaii Special Edition - Page 308

post #4606 of 5663

Just received the EL34PH's I ordered, and was told by Rich [ head-fier Rico613 ] that the ones he got had large pins, so when it came to inserting them they were somewhat awkward.

I've inserted those I got and they were tighter than the SED EL34's I have, but I managed to get them in, and take them out with not that much of a problem.

I took them out because the leads that came with Multimeter I recently got, won't go far enough in the Stax sockets on my BHSE, so I've had to order some leads that will.

 

 

                                  

 

 

                                    AppleMark

post #4607 of 5663
Quote:
Originally Posted by David1961 View Post

Just received the EL34PH's I ordered, and was told by Rich [ head-fier Rico613 ] that the ones he got had large pins, so when it came to inserting them they were somewhat awkward.
I've inserted those I got and they were tighter than the SED EL34's I have, but I managed to get them in, and take them out with not that much of a problem.
I took them out because the leads that came with Multimeter I recently got, won't go far enough in the Stax sockets on my BHSE, so I've had to order some leads that will
Forgive my ignorance, but I thought that the BHSE did not need to be manually biased when you inserted new tubes. Why did you need the multimeter?
post #4608 of 5663

In this context, "biasing" is a general term for setting balance and offset. There's a video of it earlier in this thread somewhere, plus instructions at the end of...

 

http://www.head-fi.org/products/headamp-blue-hawaii-se-electrostatic-amp

 

You often don't have to adjust balance/offset with new tubes, as a few volts difference doesn't matter (says the Mafia).

However, there may be some tube combinations where the voltage differences are greater, so best to check to be sure.

 

I found that that I didn't need to make adjustments when swapping between JJs, Treasures and PHs. But I did the adjustments anyway because I just feel better when the voltage differences are set really low.

post #4609 of 5663
Quote:
Originally Posted by Audio Jester View Post

Forgive my ignorance, but I thought that the BHSE did not need to be manually biased when you inserted new tubes. Why did you need the multimeter?

I was told the BHSE would work without the tubes been biased, but was also advised that the tubes would last longer if they were. Also, when I first inserted the SED's, they needed biasing because the settings were different to the stock tube settings.
Biasing the tubes with the BHSE is straight forward because Justin did a video on YouTube showing how to do it, and when I'm ready to bias the EL34PH's, I'll just look at that video.
post #4610 of 5663
Thanks attorney + David, useful information.
Edited by Audio Jester - 1/23/14 at 5:00am
post #4611 of 5663
Quote:
Originally Posted by David1961 View Post
 

Just received the EL34PH's I ordered, and was told by Rich [ head-fier Rico613 ] that the ones he got had large pins, so when it came to inserting them they were somewhat awkward.

I've inserted those I got and they were tighter than the SED EL34's I have, but I managed to get them in, and take them out with not that much of a problem.

I took them out because the leads that came with Multimeter I recently got, won't go far enough in the Stax sockets on my BHSE, so I've had to order some leads that will.

 

 

                                  

 

 

                                    AppleMark

Excellent pictures as per usual. Those tubes look great. Let us know how they sound or if they add any meat to the bone. 

post #4612 of 5663
Quote:
Originally Posted by magiccabbage View Post

Those tubes look great. Let us know how they sound or if they add any meat to the bone. 

I'll do that, however for me to tell if there's any difference, any change in SQ would have to be pretty substantial. I say that because the time it'll take from listening to my BHSE with the SED tubes I've in ATM, to letting them cool down, taking them out and putting the EL34PH's in, biasing them, then listening again will take quite a bit of time.
I also like to leave my BHSE on power for at least a hour before I listen to anything.
post #4613 of 5663

I've found that, to my ears, the most worthwhile upgrades are the ones that don't require close A-B testing.  For example I just installed new digital cables (very good silver ones), and when I listened the for the first time, after 12 hours of burn-in, the difference in SQ was fairly jaw dropping.  I've had similar experience with cable upgrades before.  However when it comes to tube rolling, I hear less of a difference amongst good quality tubes, but maybe that's a function of my amp.  It will be interesting to read what David has to say . . . 

post #4614 of 5663

Really nice looking tubes David! Looking forward to your impressions as I'm thinking of the same EL34s even if I've got a different amp.

post #4615 of 5663
Because I'm not very good at describing SQ, I wouldn't take that much notice on what I have to write, however there are two or three head-fiers that are thinking on having a listen to the audio equipment I have, so if or when they have, they'll probably give a better description.

The only problem with their thoughts, is because they'll only be listening to my BHSE with the EL34PH tubes, and not also the SED's, they won't be able to do a comparison.
post #4616 of 5663
Quote:
Originally Posted by David1961 View Post

Because I'm not very good at describing SQ, I wouldn't take that much notice on what I have to write, however there are two or three head-fiers that are thinking on having a listen to the audio equipment I have, so if or when they have, they'll probably give a better description.

The only problem with their thoughts, is because they'll only be listening to my BHSE with the EL34PH tubes, and not also the SED's, they won't be able to do a comparison.

Simple, buy two BHSEs. Problem solved.
post #4617 of 5663


Purple

HeadAmp Audio Electronics - home of the Pico and Gilmore amps.  Now with Audeze, Fostex, HiFiMAN, Sennheiser, and STAX.
Find us at www.HeadAmp.com

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post #4618 of 5663
Quote:
Originally Posted by justin w. View Post
 

 

i have to get a lot of extra panels because not all of them will be useable or can get damaged during assembly. also orders change. so if i have 5 orders for blue, i should have 8 good panels, so i really should order at least 12. next time, there is going to have to be an additional cost on the colored panels

Hi Justin,

 

Do you have another panels to change my order? Since I have not seen any update news for black panel. I guess you have not yet produced black panels, right? If i can get my BHSE earlier by changing the order, I would like to have gray (or any color) panel.


Edited by williechu - 1/24/14 at 1:42am
post #4619 of 5663
Quote:
Originally Posted by Audio Jester View Post


Simple, buy two BHSEs. Problem solved.

I might think about that, after I've got my home decorating sorted out.
post #4620 of 5663
Quote:
Originally Posted by williechu View Post
 

Hi Justin,

 

Do you have another panels to change my order? Since I have not seen any update news for black panel. I guess you have not yet produced black panels, right? If i can get my BHSE earlier by changing the order, I would like to have gray (or any color) panel.

hi,

 

i already have all black

HeadAmp Audio Electronics - home of the Pico and Gilmore amps.  Now with Audeze, Fostex, HiFiMAN, Sennheiser, and STAX.
Find us at www.HeadAmp.com

Reply
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