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Question about amps for the Stax SR-009 - Page 43

post #631 of 874
I've listened to my 009 / BHSE today, first using the stock Mullard's, then the PH's. ( the album I used again was " So " )
While the SQ from using the stock Mullard's was very good, the SQ to me sounded like it had less energy than with the PH's, the stock Mullard's also sounded very similar to the SED's regarding the highs.
Anyway, I've said enough about the PH's, so I'll just enjoy what I'm hearing from using them with my BHSE.
post #632 of 874


My pictures are not as good as David's :-(
I've been using the EL34PH for a few days, and I have to agree with The Attorney about the forward sound. I'm still in the burn-in process, about 15 hours, so we'll see if they improve.
Possibly David's have been tested a bit longer, as he immediately found they were better than the SED?

Anyway, they definitely look gorgeous! Well, in fact there was a bit of WTF moment when I opened the box: I knew these are replicas, but I didn't expect them to look this vintage!
post #633 of 874
Well, obviously I'm not using a BHSE, so I don't expect to have the same exact impressions about the tubes
post #634 of 874
I'm listening to my 009 / BHSE while writing this post, and same as before, the BHSE improves the SQ after it's been on power for an hour, so much so, I'm only going to listen to my LCD-XC / GS-Xmk2 while I'm waiting for the BHSE to warm up.

BTW, the PH's look very nice in your amp Massi.
post #635 of 874

It would be good if you could both have a mini meet and compare the BHSE with the Italian seductress :D 

post #636 of 874
Quote:
Originally Posted by complin View Post

It would be good if you could both have a mini meet and compare the BHSE with the Italian seductress biggrin.gif  
I'd love to! For me it's a matter of findng time...now I'm also organizing my wedding in May
post #637 of 874
My audio equipment is only insured via my home insurance, so sorry but it won't be going anywhere outside my home. Also, assuming this meeting was held at my place, it would have to be sometime away because I'm in the process of having my home decorated, and this will take sometime because all the rooms need doing.
As well as that, if this meeting did happen at my place, it would be best if the K-01 wasn't used.
post #638 of 874
The EL34PHs seem to improve: they have now a more distinctive sound, rich and liquid. Midrange is slightly forward but have very very good dynamics. They are a bit coloured compared to the JJ, which are more neutral a more bass punch. I'm not sure which I prefer.
By the way, one of the psvane has 'rattled' for a couple of days: it was a sort of wistle, a mechanic noise that didn't get into the headphones, but annoying.
Now seems alright. Anyone noticed the same problem?
post #639 of 874
On a different note, I've asked manufacturer of my amp about the lifespan of the EL34 and he said with new production tubes I should expect 4-5000 hours, even more with NOS (actual NOS). Which is a long time, probably 3-4 years. With that in mind buying some expensive XF2 might be a good idea if they are really as good as they say.
Any reliable source for those tubes?
post #640 of 874
Quote:
Originally Posted by realmassy View Post

The EL34PHs seem to improve: they have now a more distinctive sound, rich and liquid. Midrange is slightly forward but have very very good dynamics. They are a bit coloured compared to the JJ, which are more neutral a more bass punch. I'm not sure which I prefer.
By the way, one of the psvane has 'rattled' for a couple of days: it was a sort of wistle, a mechanic noise that didn't get into the headphones, but annoying.
Now seems alright. Anyone noticed the same problem?


Someone on the BHSE forum mentioned he was getting a mechanical buzz with one of his. He ended up sending them back to the seller.


Edited by Golfnutz - 2/12/14 at 2:25pm
post #641 of 874
Thanks Golfnutz, will see in the next couple of days and if the problem persists I'll do the same. I'll definitely get a second quad in case.
post #642 of 874

All 8 of my PH's rattle a lot when tapped. Even when not tapped, but just left on and fully warmed up with no music playing, one or two of the first set would occasionally rattle in a minor way, more like a faint whine. My second set whine all the time! I can hear it up to about 3 feet away in a quiet room.

 

None of this seems to affect the SQ through the phones, which is still glorious in the BHSE. However, in a few days I will receive my Herbie Halo tube dampers and I'm curious to see if they can improve the SQ further. I know that Dave didn't notice any difference on his JJ's, but I'm trying for myself with a different kind of damper. Simply touching the tube with fingers (when cold obviously) greatly reduces the rattle when tapped, so there is some chance that a damper may make a difference.

post #643 of 874
Quote:
Originally Posted by TheAttorney View Post
 

All 8 of my PH's rattle a lot when tapped. Even when not tapped, but just left on and fully warmed up with no music playing, one or two of the first set would occasionally rattle in a minor way, more like a faint whine. My second set whine all the time! I can hear it up to about 3 feet away in a quiet room.

 

None of this seems to affect the SQ through the phones, which is still glorious in the BHSE. However, in a few days I will receive my Herbie Halo tube dampers and I'm curious to see if they can improve the SQ further. I know that Dave didn't notice any difference on his JJ's, but I'm trying for myself with a different kind of damper. Simply touching the tube with fingers (when cold obviously) greatly reduces the rattle when tapped, so there is some chance that a damper may make a difference.

I've never had this with both sets. I would be sending them an email to find out if that's normal. At least you'd have it documented (in case they came back and said why didn't you tell us that when you received them). 

post #644 of 874

Will do just in case.

 

TBH, I haven't been that concerned, based on Spritzer's comment that tube rattle is common in new production tubes. My JJs also rattled about as much as my 1st PH set. But I'll see what Rachel says.

post #645 of 874
The only slight noise I can hear from the PH's, is when I first turn the BHSE on, but in order for me to hear that noise which to me sounds like it could be the glass expanding, is to have my ear close to the tubes, and I only decided to do that after reading the posts saying the PH's were making a noise.
After so long that slight noise goes away.
Yesterday I tried the dampers, and if anything they made the PH's sound worse, but that's probably because I'm full of cold.
I'll try the dampers again when my cold's cleared up, but like before, I don't think they'll make any difference to the SQ.
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