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Headamp Blue Hawaii Special Edition - Page 340

post #5086 of 6667

Exactly my point.

I can't comment from first hand experience as I always go for vintage, but from what I hear it seems to be pot luck.

From conversations I've had/seen there is a very wide variation of opinions!!

I know a couple of people who have had strange experiences with the PSVane, premature failure and very unusual mechanical vibration for example. I also know of a couple of suppliers who discontinued stocking TJ Full Music due to failures but they may have hit a bad patch. From what I've gleaned in discussions the issues revolve around QC, quality of materials used (i.e. not using copper rods) and fabrication process (i.e. lack of or poor welding )

One of our main UK valve sellers undertook some tests on the EL34 in 2005 but haven't updated it recently unfortunately which might have given a more up to date view! http://www.watfordvalves.com/cgi-bin/documents/testreport_46.pdf. It includes use in both an audio and musical amplification context.

 

Quote:

Originally Posted by astrostar59 View Post
 

Tubes question

Is the PSVane EL34 quality and life issues resolved? Has an users had a good 3000+ hours out of them?

 

I keep finding stories that they, plus the Mullard and JJ re-issue tubes are failing in 3 months.

 

I have read a few guys who rate the Shuguang EL34-B and Shuguang Treasures EL34. Shuguang,

which is a company mirroring TJ Full Music (both) in China which I really like.

 

Any thoughts? 


Edited by complin - 4/27/14 at 4:56am
post #5087 of 6667

Ok, I understand. I read more than two cases of PSVane problems, on other forums such as audio asylum. 

Maybe they have / will resolve the problems of QC. Sorry if I seem to be obsessing, only I had a transformer

go out in my SET MBs with a tube failure. I think it was a structure issue. Most tubes go gently and let us know

with fussy treble as waffly bass. Plus with the BHSE you can check the off-set to see any drift periodically.

 

So, next question - has anyone tried the Genalex Gold Lion KT77 and seen it is solid / reliable / long life.

I read some glowing (sorry no pun) reviews on thoose tubes. It is not an EL34 so a bit brighter maybe than stock?

It might suit those 007 users?

post #5088 of 6667
Quote:
Originally Posted by astrostar59 View Post

Ok, I understand. I read more than two cases of PSVane problems, on other forums such as audio asylum. 
Maybe they have / will resolve the problems of QC. Sorry if I seem to be obsessing, only I had a transformer
go out in my SET MBs with a tube failure. I think it was a structure issue. Most tubes go gently and let us know
with fussy treble as waffly bass. Plus with the BHSE you can check the off-set to see any drift periodically.

So, next question - has anyone tried the Genalex Gold Lion KT77 and seen it is solid / reliable / long life.
I read some glowing (sorry no pun) reviews on thoose tubes. It is not an EL34 so a bit brighter maybe than stock?
It might suit those 007 users?

I understand your concern about the QC of the Psvane PH tubes Julian, because that was the reason I didn't order any after first hearing about how good they were supposed to be, but AFAIK those that had problems with their PH's got them on eBay, whereas I got mine from Grant Fidelity and have had no problems with them yet, I also think others that's got theirs from Grant Fidelity have also had no problems, but I can't say for sure.

Using the 009's with the BHSE while using PH tubes IMO is a match made in heaven, but I can't say that when I heard the 007mk2's.
post #5089 of 6667
Quote:
Originally Posted by Hifi Nutter View Post

I would of bought the blue Hawaii but it doesn't come with a remote so that's a defo No no for me,to much effort getting off the couch to turn the volume up

My K-01 has an attenuator to which I've used with my BHSE. ( and my GS-Xmk2 )
All I did ( after reading what to do ) was turn the BHSE's volume knob to full, then put the att on my K-01.
This allowed me to control the volume via the K-01's remote control.
ATM I don't use the att because both my BHSE's and GS-X's volume knob can be got to without needing to get out of my recliner.

I'm not suggesting you get the K-01, but if you can get a source that's got an attenuator and remote control, there's no reason why that shouldn't work.
post #5090 of 6667

Hi David

Do you periodically check the bias, as that would give you an indication they were were doing ok as regards still on spec.

I find tube rolling fascinating but as you say, there are many dodgy sellers of both NOS tubes and even new issue. Some of the new issue tubes, they must be rejects that somehow got back on the market, or unethical sellers pushing used tubes?

 

Once my BHSE arrives, and I get used to the stock Mullards (which as far as I can tell post the first 12 months production) seem to be reliable. A decent EL34 tubes in a to spec amp (450V plates) should last 10,000 hours or more I have had more than that from some of my 300B tubes. My pre amp tubes (5687 and 6X5) regularly last 18 months and never get switch off.

 

The NOS supplies of good EL34s is obviously getting used up, and the best ones (Mullards for example) are getting silly money.

And this NIOS market then attracts dodgy sellers trying to make a quick buck. I get my NOS tubes from Watford Valve, TubeStore of Doug's Tubes.

 

I am also fascinated by the sound signature that may result from putting a KT77 into the BHSE such as the Genalex Golden Lions.

They have good reports and seem reliable / well built and can tolerate high plate voltage.

 

How good is it that the sound of an amp, and the whole system, can be tweaked by playing with the valves! It is cheaper than buying deluxe cables or upgrading transformer for example.

post #5091 of 6667

Hi David

Quote:
 turn the BHSE's volume knob to full, then put the att on my K-01.
This allowed me to control the volume via the K-01's remote control.

I have come to a similar solution myself. I am to build a DAC/Pre combo product, which has only variable line out,

which is fine for the speaker Power Amps, but not for the BHSE which required a fixed line feed.

 

So, I am to fit a fancy volume pot into my DAC/Pre which when turned right up basically contact direct and misses out

the volume pot resistors. This will give a 2.5V signal out.

 

Then I can use the BHSE volume pot as normal.

 

Only thing I need to watch is to check I have turned the DAC?Pre right down, before I switch on my Power Amps.

 

David, did you try turning up your K-01 to full, (giving a fixed line out of 2.5V approx), then use your BHSE volume?

It would be good to check it sounds the same. I know with SS amps they can be run flat out as class A, but not sure about the BHSE? The BHSE must be real quite to allow you to do that (backgound hum, hiss, buzz etc). Did you ask Justin for his direction?

post #5092 of 6667
Quote:
Originally Posted by astrostar59 View Post

Hi David
Do you periodically check the bias, as that would give you an indication they were were doing ok as regards still on spec.

Hi Julian,

No, with the 4 quads of tubes I've used with my BHSE, I've only biased them twice, once when I first inserted them, then a hour later, Justin recommended this in the video he did.
I don't know if they have to be biased on a regular basis but I had the SED's in for well over a year and only biased them the two times I mentioned and they worked without a problem, apart from making the highs with some of the songs I listened to with the 009's sound shrilling.


Quote:
Originally Posted by astrostar59 View Post


 David, did you try turning up your K-01 to full, (giving a fixed line out of 2.5V approx), then use your BHSE volume?
It would be good to check it sounds the same. I know with SS amps they can be run flat out as class A, but not sure about the BHSE? The BHSE must be real quite to allow you to do that (backgound hum, hiss, buzz etc). Did you ask Justin for his direction?


No, because the point in using the K-01's att, was to control the volume via the K-01's remote control, and if I tried having the volume at full on the K-01, I'd be able to turn the volume down with it's remote control, but not up if I wanted to.
post #5093 of 6667

New subject

Has anyone gone from using a Stax SRM-717 with 007 phones to the BHSE with 007s?

 

I have had a few conversations with various users and it might be not so big a jump in sound quality.

 

Anyone had this experience. There must be a few guys who have the BHSE and still have the 717 on a shelf.

 

VERY interested in this subject, please help.

 

I have the 007s and 717 in Spain, and am coming to the UK for 3 months, but can't bring the rig with me for logistical reasons.

 

So if anyone has these products and would not mind me demoing them, that would be great. Then I will know for sure if the BHSE is worth the extra cash!

post #5094 of 6667
Quote:
Originally Posted by Bones13 View Post
 

Has no one gotten theirs yet?


should be soon . . . :popcorn:

post #5095 of 6667
Quote:
Originally Posted by astrostar59 View Post
 

New subject

Has anyone gone from using a Stax SRM-717 with 007 phones to the BHSE with 007s?

 

I have had a few conversations with various users and it might be not so big a jump in sound quality.

 

Anyone had this experience. There must be a few guys who have the BHSE and still have the 717 on a shelf.

 

VERY interested in this subject, please help.

 

I have the 007s and 717 in Spain, and am coming to the UK for 3 months, but can't bring the rig with me for logistical reasons.

 

So if anyone has these products and would not mind me demoing them, that would be great. Then I will know for sure if the BHSE is worth the extra cash!

 

Can't help you there b/c I traded my SR007 for SR009 just a month before I received my BHSE.  IMO, the 717 was only good but not great with the OII MK1.  The MK1 is notorious difficult to drive and the 717 was not able to bring out the best in the SR007 when I had it.  The SRM-717 did a much better job at driving the SR009 compared to the SR007 though.    


Edited by purk - 4/28/14 at 10:33pm
post #5096 of 6667

I'm sure this has been asked before but I can't seem to find the answer.  With the EL34 tubes, does the quad have to be matched?  Or is it 2 matched pair as basically 2 tubes per channel?

 

Thanks,

 

Richard

post #5097 of 6667

Strictly speaking, it's 2 matched pairs.

 

However, for my personal peace of mind, I prefer if the 2 matched pairs are quite close to each other for 2 (possibly irrational) reasons:

1. If the pairs are considerably different, it's more likely that they will age differently. I'd rather everything stayed constant where possible.

2. If you accept that different tubes affect the SQ in the BHSE, then considerably different tubes left and right may confuse the overall SQ. 

post #5098 of 6667
I've found that since using the PH tubes with my BHSE, I don't need the volume knob as high as I did when using the stock Mullard's and SED's. A comfortable listening level for me when using the Mullard's and SED's was around 11-30am, whereas with the PH's it's about 10-30am.
post #5099 of 6667

Does anyone have some good quality pics of a dark gray model ?

 

There are a lot of black / silver (blue and pink too), but I've seen only three. The official headamp one

And two on this thread :

The first one looks somewhat purple to me...

 

Thanks !


Ali

post #5100 of 6667

Depending on what company does the anodizing, and even then it varies batch to batch, the gray can look slightly purple. The current batch is very gray. You can see this in the image i posted a few months ago

 

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