I cannot recall the article discussion but it was mentioned that Pass Labs amplifers employ a remarkable but "cheap" electrolytic capacitor in their amplifiers. Nothing in the Pass lineup is anything I would ever consider as having used the c word - and this isn't meant to sound elitist. There is much to be said about the remarkable XA 160.5's I've recently acquired. I've have VH teflon caps in a custom A/B amplifer that are nothing short of remarkable in their ability to reveal and bring out the raw emotion that connects us with the music we love. Yes, this type of cap is quite expensive as well as requiring a considerable break-in period, there's no question. The results, however, are well worth the wait.
Question - particularly for the folks as Pass - given the top quality of their gear, might these esoteric [teflon capacitors, for example] components ever be considered as an upgrade to their products? This writer is surely one who'd strongly opt for them.
I realize companies go through a process of vetting of cost vs. being marketable, I understand that, but I'd imaging their are some individuals who are particularly drawn to 'going the extra mile' when it comes to designing and building their audio systems. I also understand that a great many years of engineering, testing and long listening sessions are integral to product development.
P.S. If anyone has experience with break-in time of the above-mentioned Pass amplifer - approximately when the upper-end of their capability comes out of their shell, so to speak. Any data is greatly appreciated.
Thanks very much.
Scott
312.332.3230
scott_wolff1@hotmail.com
Question - particularly for the folks as Pass - given the top quality of their gear, might these esoteric [teflon capacitors, for example] components ever be considered as an upgrade to their products? This writer is surely one who'd strongly opt for them.
I realize companies go through a process of vetting of cost vs. being marketable, I understand that, but I'd imaging their are some individuals who are particularly drawn to 'going the extra mile' when it comes to designing and building their audio systems. I also understand that a great many years of engineering, testing and long listening sessions are integral to product development.
P.S. If anyone has experience with break-in time of the above-mentioned Pass amplifer - approximately when the upper-end of their capability comes out of their shell, so to speak. Any data is greatly appreciated.
Thanks very much.
Scott
312.332.3230
scott_wolff1@hotmail.com
Not 100% sure, but i don't think there are any caps in the signal path in the Pass amps. This is just a guess based on what little i know. If they are not in the signal path, I doubt there is much to be gained.
Cap In Pass
Buzzforb,
Thanks very much for the quick reply. Yeah, I'd not considered that (lack of cap in signal path), and think I may recall having heard as much - I'm a forgetful sort. Any ideas on how long it may take, if ever, for the upper register of these animals may come out of hibernation?
Scott
Buzzforb,
Thanks very much for the quick reply. Yeah, I'd not considered that (lack of cap in signal path), and think I may recall having heard as much - I'm a forgetful sort. Any ideas on how long it may take, if ever, for the upper register of these animals may come out of hibernation?
Scott
All that glitters is not gold!
I have to disagree with your opinion on Teflon caps, sometimes the "designer cap is not the best cap for the job". Teflon is not God's gift to the audio world if it was everyone would be using them. The most important thing is the circuit and the synergy of the components used in it.
A designer has to use the best cap for the purpose and sonic properties desired an more often than not it is not the most expensive.
Take it from me that the good folks at Pass Labs have spent countless hours selecting components for their designs.
Jam
I have to disagree with your opinion on Teflon caps, sometimes the "designer cap is not the best cap for the job". Teflon is not God's gift to the audio world if it was everyone would be using them. The most important thing is the circuit and the synergy of the components used in it.
A designer has to use the best cap for the purpose and sonic properties desired an more often than not it is not the most expensive.
Take it from me that the good folks at Pass Labs have spent countless hours selecting components for their designs.
Jam
The 160.5 doesn't have electrolytics in the signal path. You might be thinking of Elna Silmics. We do use these in some places but not signal on 160.5.
These days we use custom made polypropylene caps but not in the amps.
Give the 160.5 a few days with music to come up to speed.
These days we use custom made polypropylene caps but not in the amps.
Give the 160.5 a few days with music to come up to speed.
Just for grins...........😛
assuming a Pass Labs amplifier has an input impedance of 10k, what size Teflon cap would you need?
Lets be conservative and say 10uF. What do you think the size of 10uF Teflon would be/ (at what point dies a cap this size start turning into an antenna?).......Also what would be the cost of said capacitor be knowing a 1uF VH Teflon costs $450.00.
Just saying...........
assuming a Pass Labs amplifier has an input impedance of 10k, what size Teflon cap would you need?
Lets be conservative and say 10uF. What do you think the size of 10uF Teflon would be/ (at what point dies a cap this size start turning into an antenna?).......Also what would be the cost of said capacitor be knowing a 1uF VH Teflon costs $450.00.
Just saying...........
A question I would ask is if a manufacturer of exotic capacitors could keep up with the production demands/quantities that Pass would require...
Nah, it's only 9:30 on his side of the country. You are the one who's up late!! 😀 😀 😀
jam said:
Nah, it's only 9:30 on his side of the country. You are the one who's up late!! 😀 😀 😀
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The tube has always had a bit of a mysterious aura for me, When I was young, I remember my father telling me of a good friend who was a Ham radio enthusiast, and how when the radio operators got ahold of somebody on the other side of the country or world, the conversation would always devolve to talking about each-other's radios... and he said it seemed that every radio made would have "a pair of 6L6's in the finals."
So it was the first tube I ever heard of, and that just stuck in my head. Seemed appropriate for an audioforum name.
These examples are really quite nice looking -
6L6 PAIR WOULD BE ABOUT 50 W / 6V6 SOUND BETTER(IN A GUITAR AMP) AND 6CA7 HAVE THE POWER IF 6L6 BUT ARE MORE LIKE 6V6 SONICALLY...IMHO
REGARDS, ELWOOD
REGARDS, ELWOOD
So I guess the closest equivalent is the EL34.......what are the sonic differences between the two all things being equal?
This might be on the border of thread jacking and we might want to start a new thread for 6L6 fans.
Jam
P.S. Someone else from the Carolinas..........I thought I was the only one around these parts. Good day eyoung.
This might be on the border of thread jacking and we might want to start a new thread for 6L6 fans.
Jam
P.S. Someone else from the Carolinas..........I thought I was the only one around these parts. Good day eyoung.
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My XA 30.5 break-in took 10 days of constant playing, with 1 hour shut off every day. At nights the amp operated at low volume, not to interrupt my sleep. At day time, the amp was operated at moderate listening volume. During the break-in the sound signature changed constantly, until it stabilized.
Papa,
Thank you, though I don't deserve your kind words.
The excellent sound quality of your products needs no reassurance from an amateur like me. It's just the other way around, I take pride in being able to recognize the superb sound quality of the XA30.5. I take pride in being able to recognize superb sound for what it is.
Should I win the lottery (statistically I have better chances to be run down by a train), I plan to replace it with XA100.5, or at least XA60.5 (I heard what a more powerful amp, like the X200.5, can do to the sound of my setup).
Thank you, though I don't deserve your kind words.
The excellent sound quality of your products needs no reassurance from an amateur like me. It's just the other way around, I take pride in being able to recognize the superb sound quality of the XA30.5. I take pride in being able to recognize superb sound for what it is.
Should I win the lottery (statistically I have better chances to be run down by a train), I plan to replace it with XA100.5, or at least XA60.5 (I heard what a more powerful amp, like the X200.5, can do to the sound of my setup).
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