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Schiit Lyr - The tube rolling thread - Page 401  

post #6001 of 8735
Quote:
Originally Posted by rdaneel View Post

Thanks.  I appreciate the ebay link.  If no one here has extras they don't need (I was hoping to keep the sale "in the family") I'll definitely try some of those 6N1Ps.  How is it that I already have five pairs of tubes and I have had the Lyr for less than a month? blink.gif

 

Not to mention a pair of Lyrs...

post #6002 of 8735
Quote:
Originally Posted by rdaneel View Post

toschek, I picked up a Lyr modded by Steve Nugent at Empirical Audio.  They used it for a demo that required headphones.  So far it sounds fabulous to me, but I haven't yet compared it to a bone stock Lyr to inform my opinion.  I got a good deal on a stock Lyr that came with some Telefunkens that I can use with whichever Lyr I prefer.

 

 

The mods included:

 

1) swap in 4 high-voltage PentaCap teflon signal coupling caps to replace the stock Wima Polypropylene caps

2) swap in high-voltage Black-Gate electrolytic cap for plate voltage

3) addition of a couple Panasonic low-ESR series electrolytics to replace inexpensive caps for low-voltage decoupling

4) addition of high-voltage HF decoupling cap for plate voltage

5) addition of 4 low-voltage HF decoupling caps

 

Supposedly, these are hundreds of dollars in parts (not to mention the labor involved), so I'm curious to see how much of an audible difference I hear.  I want to try and do this as blindly as possible to remove any type of expectation bias.  I figure that if I have four identical tubes, I can set the Lyrs up so all I have to is swap the cables.  If I cover the serial numbers and let my wife arrange them in the rack, I won't know which is which.

 

 

The problem is going to be that you'll need matched tube to have "identical" tubes.  I'm not certain how much of a difference matching makes in the Lyr, but just four tubes of the same brand/model could still have some differences that may or may not be significant.

post #6003 of 8735

For folks that have asked, the ECC85 and PCC85 tubes work fine in the Lyr. Sound good, too.

post #6004 of 8735
Quote:
Originally Posted by 333jeffery View Post

For folks that have asked, the ECC85 and PCC85 tubes work fine in the Lyr. Sound good, too.

 

What about E80CC?

 

I think they're similar to 6N1P but i'm not sure if they'll work ok in Lyr.

 

*EDIT* looking at a spec sheet of E80CC it seems like heater voltage will work at both 12.6v and 6.3v drawing 300mA and 600mA respectively.

 

I might pull the trigger on some and see what they're like, seem to be intended for audio use and are a lot cheaper than E88CC for the same makes


Edited by ilikepooters - 3/25/13 at 5:25pm
post #6005 of 8735

I've never tried the E80CC's, so I don't know if they'll work. You can also use 6n23p's if you're looking for cheap tubes for the Lyr, they work good.

post #6006 of 8735
Quote:
Originally Posted by nelamvr6 View Post

 

 

The problem is going to be that you'll need matched tube to have "identical" tubes.  I'm not certain how much of a difference matching makes in the Lyr, but just four tubes of the same brand/model could still have some differences that may or may not be significant.

 

Good point.  I just ordered a matched quad of 6N1Ps that have very very close (or identical) measurements.  They're NOS military tubes so I'm not expecting amazing sound quality, but they should provide a good basis for comparison. I'll have to make sure to use them equally so there is no issue with break-in.  Now I just have to figure out the best way to wire everything.

 

I've never used the Lyr's preamp function - do you think I could just daisy chain the units together, or should I just swap the interconnect cables coming out of my DAC between the two Lyrs?

post #6007 of 8735

I've found another budget champion.

 

I ordered some Siemens PCC189 and Phillips PCC189 and they turned up today, just rolled in the Siemens and they sound the best by far of all the tubes i have.

 

These are the ones i bought: http://www.ebay.co.uk/itm/370780524004?ssPageName=STRK:MEWNX:IT&_trksid=p3984.m1439.l2649

 

Only 12 Euros! and they absolutely blow the SEL Lorenz PCC88's out of the water. (Using them on my HE5-LE anyway, so YMMV depending on your 'phones)

 

They have a nice subtle warmth to them, treble is airy with a little bit of sparkle, mids are not in the slight bit recessed. Detail and separation are far above any other tube i've tried. Soundstage is expansive.

 

They bring everything together nicely, very balanced, and they've not even burned in yet!

 

*EDIT* Only negative, which is really very minor, is the volume knob needs cranking up a very slight bit more than the other tubes i have.

 

I'd order a backup pair if i had any money left eek.gif

 

I've not tried the Phillips PCC189's yet, will report on those when i've rolled them in.

 

I urge everyone to grab a pair of these Siemens though, they are truly amazing for the money, i'm awestruck listening to them.


Edited by ilikepooters - 3/26/13 at 11:01am
post #6008 of 8735
Quote:
Originally Posted by rdaneel View Post

 

Good point.  I just ordered a matched quad of 6N1Ps that have very very close (or identical) measurements.  They're NOS military tubes so I'm not expecting amazing sound quality, but they should provide a good basis for comparison. I'll have to make sure to use them equally so there is no issue with break-in.  Now I just have to figure out the best way to wire everything.

 

I've never used the Lyr's preamp function - do you think I could just daisy chain the units together, or should I just swap the interconnect cables coming out of my DAC between the two Lyrs?

 

You wouldn't want to daisy chain them, either swap the cables or get a cheap, good quality RCA switch.

post #6009 of 8735
I ordered mine too.biggrin.gif
post #6010 of 8735
Quote:
Originally Posted by ilikepooters View Post

I've found another budget champion.

I ordered some Siemens PCC189 and Phillips PCC189 and they turned up today, just rolled in the Siemens and they sound the best by far of all the tubes i have.

These are the ones i bought: http://www.ebay.co.uk/itm/370780524004?ssPageName=STRK:MEWNX:IT&_trksid=p3984.m1439.l2649

Only 12 Euros! and they absolutely blow the SEL Lorenz PCC88's out of the water. (Using them on my HE5-LE anyway, so YMMV depending on your 'phones)

They have a nice subtle warmth to them, treble is airy with a little bit of sparkle, mids are not in the slight bit recessed. Detail and separation are far above any other tube i've tried. Soundstage is expansive.

They bring everything together nicely, very balanced, and they've not even burned in yet!

*EDIT* Only negative, which is really very minor, is the volume knob needs cranking up a very slight bit more than the other tubes i have.

I'd order a backup pair if i had any money left eek.gif


I've not tried the Phillips PCC189's yet, will report on those when i've rolled them in.

I urge everyone to grab a pair of these Siemens though, they are truly amazing for the money, i'm awestruck listening to them.
The pair is matched one?
I ordered those for my He 5LE in the assumption of their being matched.
post #6011 of 8735
Quote:
Originally Posted by Joong View Post


The pair is matched one?
I ordered those for my He 5LE in the assumption of their being matched.

 

They're not advertised as matched, but i can't hear any imbalances with these tubes.

 

I think matching might be over-rated tbh.

post #6012 of 8735
What happens if unmatched ?
One tube operates on one channel of stereo, and the result leads to unbalanced volumes?
post #6013 of 8735
Quote:
Originally Posted by Joong View Post

What happens if unmatched ?
One tube operates on one channel of stereo, and the result leads to unbalanced volumes?

 

Yeah i think it would give unbalanced volume, but they'd need to be a really poor match to be noticable i think.

post #6014 of 8735
Quote:
Originally Posted by rdaneel View Post

Quote:
Originally Posted by nelamvr6 View Post

 

 

The problem is going to be that you'll need matched tube to have "identical" tubes.  I'm not certain how much of a difference matching makes in the Lyr, but just four tubes of the same brand/model could still have some differences that may or may not be significant.

 

Good point.  I just ordered a matched quad of 6N1Ps that have very very close (or identical) measurements.  They're NOS military tubes so I'm not expecting amazing sound quality, but they should provide a good basis for comparison. I'll have to make sure to use them equally so there is no issue with break-in.  Now I just have to figure out the best way to wire everything.

 

I've never used the Lyr's preamp function - do you think I could just daisy chain the units together, or should I just swap the interconnect cables coming out of my DAC between the two Lyrs?


I would think that ideally parallel connections would provide the most assurance of equal burn in. But I don't know enough about your rig to guess how that might be accomplished.

Back in the day it wasn't unusual for an amp or receiver to have two tape loops. That would make things very easy.

Sent from my Android phone.
post #6015 of 8735
Lyr's preamp function can be controlerable by volume knob?
I have Emotiva mini x, which can be fed by the preamp output of Lyr?
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