Head-Fi.org › Forums › Equipment Forums › Headphone Amps (full-size) › Schiit Lyr - The tube rolling thread
New Posts  All Forums:Forum Nav:

Schiit Lyr - The tube rolling thread - Page 482  

post #7216 of 8735
Quote:
Originally Posted by ilikepooters View Post

I've started on my converters today, thought i'd post a little tutorial if anyone fancies a go themselves instead of buying them from me.

 

We start off with one cheap chinese socket saver, i managed to buy 20 of these for about £16, so not much each really.

 

ether, and then put some electrical tape around them to keep everything lined up while we work on the next stage.

 

 

 

 

 

 

Hi,

9 pin receiving valves are quite sensitive to EMI.  As such, I am implementing these ferrite beads in my tester on each pin.

Not sure you have the room in your adapters but I thought you might be interested.  I use 21 ga solid wire 0.057"

 

 

 

post #7217 of 8735
Quote:
Originally Posted by ilikepooters View Post

Amperex Holland 6DJ8 PQ shield (Tekronix Checked) turned up today.

 

 

 

 

 

Oh.. My.. Word....

 

I don't think the words have been invented yet to describe the sound, they are THAT good.

 

Can't believe i got these for only £35 posted.

 

 

beerchug.gif

 

Philips made some really nice glass, no doubt about that!

post #7218 of 8735
Told ya..... biggrin.gif
Quote:
Originally Posted by ilikepooters View Post

Amperex Holland 6DJ8 PQ shield (Tekronix Checked) turned up today.

Oh.. My.. Word....

I don't think the words have been invented yet to describe the sound, they are THAT good.

Can't believe i got these for only £35 posted.
post #7219 of 8735

I saw this on the Woo Audio site, does the same thing apply to the Lyr? 

 

 

 
"17. Can I leave the amp on whole day long?
 
Never and never leave your amp on unattended. Due to various reasons such as power supply over-heating or tube failure, your amplifier can cause serious damage. For the safest use, please do NOT exceed maximum 10 hours of play time. Let the amplifier cool down completely for next listening session."
 
post #7220 of 8735
Quote:
Originally Posted by phototristan View Post

I saw this on the Woo Audio site, does the same thing apply to the Lyr? 

 

 

 
"17. Can I leave the amp on whole day long?
 
Never and never leave your amp on unattended. Due to various reasons such as power supply over-heating or tube failure, your amplifier can cause serious damage. For the safest use, please do NOT exceed maximum 10 hours of play time. Let the amplifier cool down completely for next listening session."
 

 

If they're serious they're totally full of ****!

 

Before the 60's/70's, ALL electronics were based on tubes.  That includes mission critical military electronics. Can you imagine an electronics technician in the US Navy trying to explain to an Admiral how he had to turn his radio off after 10 hours?  Wouldn't happen! 

 

Think of all of those vacuum tubes in huge computer mainframes,,, think they ever turned them off?

 

This is total horse****.  I have left my Lyr on for 48 hours at a time while burning in tubes with absolutely no ill effects.

 

I wouldn't recommend leaving it on if you weren't doing something like burning in tubes simply because you'd be needlessly raising your electric bill and burning hours off your tube's lifespan.  But if you're listening or burning in, I see no reason to put a time limit on your usage.

post #7221 of 8735
Quote:
Originally Posted by nelamvr6 View Post

 

If they're serious they're totally full of ****!

 

Before the 60's/70's, ALL electronics were based on tubes.  That includes mission critical military electronics. Can you imagine an electronics technician in the US Navy trying to explain to an Admiral how he had to turn his radio off after 10 hours?  Wouldn't happen! 

 

Think of all of those vacuum tubes in huge computer mainframes,,, think they ever turned them off?

 

This is total horse****.  I have left my Lyr on for 48 hours at a time while burning in tubes with absolutely no ill effects.

 

I wouldn't recommend leaving it on if you weren't doing something like burning in tubes simply because you'd be needlessly raising your electric bill and burning hours off your tube's lifespan.  But if you're listening or burning in, I see no reason to put a time limit on your usage.

 

Thanks, makes sense. 

post #7222 of 8735

So right now that I don't have a DAC, I am not really sure how to connect my Lyr to the computer. I tried hooking them up to the back RCA plugs on the PC, but nothing. Anyone know? Used my E9 and e7 before this.

post #7223 of 8735

I recently got a some new preamp tubes for my Woo Audio WA2 and wanted to share some impressions.  Since the Schiit Lyr uses the same tubes, I figured I'd share my thoughts within this thread to give you an idea how some of these tubes sound to a seasoned WA2 owner.  All listening was done with RFT EZ81 rectifiers and Tung Sol 7236 power tubes, with both the HD600's and HD650's.  This has been my setup for about 4 years now so I'm pretty accustomed to how everything sounds.

 
Amperex Orange Globe 6DJ8 - A Frame
These are both from 1973 and made in the Heerlen plant in Holland.
 
I consider this to be a great tube for the HD600's, as they have a bit more lower end punch and a super smooth and lush midrange.  Yet, they still have a great airy top end.  They are the Sennheiser of tubes!  With the HD650's, they sound a bit too warm for my liking.  They are still incredibly detailed and provide good separation, however I wouldn't consider these to be perfect all-around tubes and prefer listening to them with my HD600's.
 
I find myself listening to these tubes when I just want to space out and listen to music.  They're so far from being fatiguing that I could spend days listening to these.
 
 
RTC E188CC Green Label - Large "O" Getter
These were loaned to me by an awesome Head-Fi'er (sceleratus).  These babies are from 1965, and from what I can tell, were made in a Phillips-owned factory in Suresnes, France.  sceleratus may be able to confirm that.
 
To my ears, these aren't quite as warm and lush as the Amperex's.  However, the first thing I noticed was the incredible detail and separation between each instrument.
 
#36, a track from Disc 2 of Dave Matthews Band "Live at Red Rocks" album starts out with a really good drum solo.  It was super easy to pick out the location of each strike, yet they are accurate enough as to not drown out the delicate high hats while Carter Beauford is wailing away on the kick drum.  Hands down the best I've ever heard this track reproduced.
 
While they sound great with the HD600's, I think they're better suited to the HD650's.  Also, unlike the Amperex Orange Globes, it took some time for me to really appreciate what they have to offer.  These tubes are truly a treat, and probably one of the best I've ever heard.
 
 
Valvo E88CC - Large "O" Getter
These are from 1960 and 1964, and were also made in the Heerlen plant.
 
These tubes seem to combine my favorite things from both the Amperex 6DJ8's and RTC E188CC's.  They are incredibly airy and delicate, yet have a touch more body and a warmer midrange than the RTC E188CC's, slightly reminiscent of the Amperex 6DJ8's.  I've always preferred the HD650's over the HD600's, however with these tubes driving my HD600's I honestly can't find a single flaw and find them to be a perfect match, just like the RTC's and the HD650's.  For those that enjoy the Sennheiser sound signature, these tubes are a must have.  After listening to the RTC's, I was bummed that I'd eventually have to return them.  The Valvo's changed that cool.gif
 
And of course the trio, from left to right...Amperex 6DJ8 -> RTC E188CC -> Valvo E88CC

 

post #7224 of 8735
Quote:
Originally Posted by Mando323 View Post

So right now that I don't have a DAC, I am not really sure how to connect my Lyr to the computer. I tried hooking them up to the back RCA plugs on the PC, but nothing. Anyone know? Used my E9 and e7 before this.

Use your Headphone Out jack with an adapter cable.

 

Cheers!beerchug.gif

-HK sends

post #7225 of 8735

Excellent impressions, Thaddy!

 

Cheers!beerchug.gif

-HK sends

post #7226 of 8735
Quote:
Originally Posted by Mando323 View Post

So right now that I don't have a DAC, I am not really sure how to connect my Lyr to the computer. I tried hooking them up to the back RCA plugs on the PC, but nothing. Anyone know? Used my E9 and e7 before this.

http://www.amazon.com/Mediabridge-Stereo-Design-accommodates-SmartPhones/dp/B004YEBK66/ref=sr_1_2?ie=UTF8&qid=1368687873&sr=8-2&keywords=3.5mm+to+rca

post #7227 of 8735

Thanks for the impressions Thaddy.

 

I may need to check out the Valvos at some point down the line as I have a pair of HD600s. With the tubes I've tried so far (not many admittedly) the 600's do sound good but I feel, rightly or wrongly, that there is some untapped potential. On the other hand my Denon D2000's sound great with almost anything I throw at them which wasn't something I'd been expecting at all. Sure there's some background noise at quieter moments but they have a nice almost live feel which I'm really digging.

 

With the Valvo tubes are there different 'grades' as looking on ebay 1960's large O getters seem to vary quite dramatically in price from $50ish to well over the $200 mark? I've noticed that some have a box similar to the one pictured above (red tube on yellow background) whereas others have a two-tone blue / yellow box. Is that a way to identify the better ones or is there something else to look out for e.g. marking on the tube or factory that made them?

 

Cheers!


Edited by jellofund - 5/16/13 at 3:50am
post #7228 of 8735

That's the only negative with Lyr, anything low impedence and easy to drive picks up a lot of tube noise.

post #7229 of 8735
Quote:
Originally Posted by jellofund View Post

Thanks for the impressions Thaddy.

 

I may need to check out the Valvos at some point down the line as I have a pair of HD600s. With the tubes I've tried so far (not many admittedly) the 600's do sound good but I feel, rightly or wrongly, that there is some untapped potential. On the other hand my Denon D2000's sound great with almost anything I throw at them which wasn't something I'd been expecting at all. Sure there's some background noise at quieter moments but they have a nice almost live feel which I'm really digging.

 

With the Valvo tubes are there different 'grades' as looking on ebay 1960's large O getters seem to vary quite dramatically in price from $50ish to well over the $200 mark? I've noticed that some have a box similar to the one pictured above (red tube on yellow background) whereas others have a two-tone blue / yellow box. Is that a way to identify the better ones or is there something else to look out for e.g. marking on the tube or factory that made them?

 

Cheers!

 

 

Tubes from the Heerlen plant were sold with a bunch of different labels, like Amperex, Miniwatt, Philips, Bugle Boy, and also relabeled by various Philips associates or companies owned by Philips like Balvo, Mullard, La Radiotechnique RTC, Siemens, and Adzam.  The Valvo's with red labels were for industrial use and went throuhgh additional testing.  I'd keep an eye out for the late 60's to early 70's models with gold pins and the large "halo" or "O" getter.  I'm not sure about the history behind the boxes, but both seem to be authentic.  If you want to make sure you get a quality E88CC, I would stick to a trusted dealer like Brent Jesse or TubeMonger.  I've had great experiences with both.

post #7230 of 8735

Hah, funny thin is I bought one and no avail. I then hooked up a regular 3.5 Mm cord and nothing. Going to mess around with my pc tomorrow.
New Posts  All Forums:Forum Nav:
  Return Home
  Back to Forum: Headphone Amps (full-size)
This thread is locked  
Head-Fi.org › Forums › Equipment Forums › Headphone Amps (full-size) › Schiit Lyr - The tube rolling thread