Bottlehead Amplifier Discussion / Comparison Thread: Crack, SEX & Mainline
Feb 22, 2017 at 3:38 PM Post #1,636 of 2,108
Thanks all. Well I can afford a Mainline and I can't see myself buying a ton of 'phones. I really like the Beyer sound and really don't get on with Sennies so unless I seriously up the budget I can't see what else is try.

Will have a mull over the weekend...


How did the mulling go? I still highly recommend the Mainline, even after a couple of years!


Does anyone here have experience with a Lyr/LCD 2.2 F setup and also own a S.E.X.? I would like to know if you would considered an "upgrade".


I had the LCD 2.2 and S.E.X. but never Lyr... Sorry :frowning2:
 
Feb 22, 2017 at 3:48 PM Post #1,637 of 2,108
If mulling includes waxing the budget on some Focal Utopia's its gone really well!

I really didn't mean to but just had to try a pair. Early days yet-only got a couple of hours on them but I can't see them going anywhere!

So mull number is what a Utopia / Mainline combo would sound like!
 
Feb 28, 2017 at 9:37 AM Post #1,638 of 2,108
Is the mainline harder to build than the crack? I really enjoyed building the crack + SB. I think I'm ready to "move up". I need a little more warmth in my amp, and $1200 is about the limit of what I'm willing to spend. I think it's coming down to a mainline, a Woo. Unless there are other suggestions for a used amp that can add a little warmth.
 
Feb 28, 2017 at 12:39 PM Post #1,639 of 2,108
Is the mainline harder to build than the crack? I really enjoyed building the crack + SB. I think I'm ready to "move up". I need a little more warmth in my amp, and $1200 is about the limit of what I'm willing to spend. I think it's coming down to a mainline, a Woo. Unless there are other suggestions for a used amp that can add a little warmth.


It is.  Requires about twice the hours and a pretty serious concentration.  Also I'd recommend having at least two solder heads. One small for the through hole work on the boards, and one chisel, for everything else.  You could use one it's just tougher. One thing that is nicer and easier about the Mainline is the wire size. Smaller gauge wire leads to less congestion in  the workspace particularly when working on and around  the tube sockets.
 
Feb 28, 2017 at 3:41 PM Post #1,640 of 2,108
Is the mainline harder to build than the crack? I really enjoyed building the crack + SB. I think I'm ready to "move up". I need a little more warmth in my amp, and $1200 is about the limit of what I'm willing to spend. I think it's coming down to a mainline, a Woo. Unless there are other suggestions for a used amp that can add a little warmth.


If you are looking for an amp that is warmer than the Crack + speedball, the Mainline is not the place to find it. The Mainline is much more neutral (i.e. less warm) and more resolving than the Crack + SB. If you want a better amp than what you have, and want extra warmth, you could get a crack-a-twoa and invest in tube rolling and finding a tube pairing with the right tubes to give you your desired warmth.
 
Feb 28, 2017 at 4:53 PM Post #1,641 of 2,108

Didn't have my mainline when I picked up Utopia. I've learned though, that Utopia is happiest with very very low output impedance (amp). I'd say no more than a few Ohms at the most. Don't remember the specs for mainline 'Z' out, but amps with low output impedance tend to drive Utopia better.
 
Mar 1, 2017 at 12:46 AM Post #1,642 of 2,108
Is the mainline harder to build than the crack? I really enjoyed building the crack + SB. I think I'm ready to "move up". I need a little more warmth in my amp, and $1200 is about the limit of what I'm willing to spend. I think it's coming down to a mainline, a Woo. Unless there are other suggestions for a used amp that can add a little warmth.


If you are looking for an amp that is warmer than the Crack + speedball, the Mainline is not the place to find it. The Mainline is much more neutral (i.e. less warm) and more resolving than the Crack + SB. If you want a better amp than what you have, and want extra warmth, you could get a crack-a-twoa and invest in tube rolling and finding a tube pairing with the right tubes to give you your desired warmth.


I'm not looking to replace the crack with a mainline; I'm looking to replace the Taurus MkII. My main cans are the utopia, and I would like a little lushness. The Taurus is an excellent SS amp. I don't think it colors the sound at all, and I can get most of what I want with a tad of eq. That said, I really enjoyed building the crack, and I would relish the hours building the mainline.

As rogers points out, though, there is a concern about the low impedance output needs of the utopia. Anyone tried the utopia with the mainline? Alternatively, what about a TH900 or an Ether C 1.1?

Oops, post 1572 says the TH900 and mainline aren't a great match.
 
Mar 1, 2017 at 1:50 AM Post #1,643 of 2,108
I'm not looking to replace the crack with a mainline; I'm looking to replace the Taurus MkII. My main cans are the utopia, and I would like a little lushness. The Taurus is an excellent SS amp. I don't think it colors the sound at all, and I can get most of what I want with a tad of eq. That said, I really enjoyed building the crack, and I would relish the hours building the mainline.

As rogers points out, though, there is a concern about the low impedance output needs of the utopia. Anyone tried the utopia with the mainline? Alternatively, what about a TH900 or an Ether C 1.1?

Oops, post 1572 says the TH900 and mainline aren't a great match.


If you do get the Mainline I'd love to hear your thoughts on it driving the Utipias.

A mid term aim of mine is to perhaps get this pairing for a second listening station.
 
Mar 1, 2017 at 8:55 AM Post #1,644 of 2,108
I was hot on the Utopia until I heard them. The bang for your buck factor is definitely not there. They are excellent, but about 2K overpriced.  I'd rather go full Stax 009 if I were going down that rabbit hole.
 
I had the my mainline and the Utopia right beside each other and gosh, I can't remember if I plugged them into each other. I was more interested in how much detail I was loosing when I pitted my Mainline/HD800 vs the STAX SR009/KGSS - both sourced off the Yggy.  The 009 was a clear winner. I did prefer it over anything I heard, and I did hear a lot of great rigs that day.  My only complaint with Stax is build design. Its just piss poor. Its blocky, IMHO cheap looking and actually fall apart fragile.
 
However, the headphone that stuck out the most was an IEM - the CA Andromeda. So much so I bought a pair next day. The Andromeda seem to pair best with AK products. For $1099 they are a downright bargin. But they sound anemic on the Mainline. The output Z is way too high for them, even on the low setting. The AK document their output Z in the specs as 2ohms.
 
The measured output impedance on the mainline doesn't appear to be printed anywhere. I haven't dug out the manual, but I doubt its there either. 
 
Mar 1, 2017 at 2:06 PM Post #1,645 of 2,108
I was hot on the Utopia until I heard them. The bang for your buck factor is definitely not there. They are excellent, but about 2K overpriced.  I'd rather go full Stax 009 if I were going down that rabbit hole.

I had the my mainline and the Utopia right beside each other and gosh, I can't remember if I plugged them into each other. I was more interested in how much detail I was loosing when I pitted my Mainline/HD800 vs the STAX SR009/KGSS - both sourced off the Yggy.  The 009 was a clear winner. I did prefer it over anything I heard, and I did hear a lot of great rigs that day.  My only complaint with Stax is build design. Its just piss poor. Its blocky, IMHO cheap looking and actually fall apart fragile.

However, the headphone that stuck out the most was an IEM - the CA Andromeda. So much so I bought a pair next day. The Andromeda seem to pair best with AK products. For $1099 they are a downright bargin. But they sound anemic on the Mainline. The output Z is way too high for them, even on the low setting. The AK document their output Z in the specs as 2ohms.

The measured output impedance on the mainline doesn't appear to be printed anywhere. I haven't dug out the manual, but I doubt its there either. 


So you did not listen to the Mainline / Utopia combo because you were disappointed by the lack of detail from a far less capable headphone?

That said an 009 is on my list of headphones to try in the future however an 009/KGSS combo is even more obnoxiously expensive than the Utopia!
 
Mar 1, 2017 at 3:41 PM Post #1,646 of 2,108
 The measured output impedance on the mainline doesn't appear to be printed anywhere. I haven't dug out the manual, but I doubt its there either. 

 
That would be an alternative fact. From the Mainline manual, page 6 :
 
Output power is about 600mW. Input impedance is 25Kohms minimum. The output impedance is switchable between 16 ohms and 128 ohms.
 
Mar 1, 2017 at 8:27 PM Post #1,648 of 2,108
So you did not listen to the Mainline / Utopia combo because you were disappointed by the lack of detail from a far less capable headphone?

That said an 009 is on my list of headphones to try in the future however an 009/KGSS combo is even more obnoxiously expensive than the Utopia!

 
Sorry, no. I was distracted and forgot to. FYI the Utopia owner was experiencing buyers remorse over the Mainline/HD800 combo. *shrug*  Again, I heard it on several sources and while a good headphone, the price is still not justified. Then again I don't think any of the top tier prices are - but that's me. There has to be a better way to make good headphones cheaper. Maybe I'll make it a mission.
 
Mar 2, 2017 at 12:19 AM Post #1,649 of 2,108
Sorry, no. I was distracted and forgot to. FYI the Utopia owner was experiencing buyers remorse over the Mainline/HD800 combo. *shrug*  Again, I heard it on several sources and while a good headphone, the price is still not justified. Then again I don't think any of the top tier prices are - but that's me. There has to be a better way to make good headphones cheaper. Maybe I'll make it a mission.


It would be interesting to look at the accounts of say Focal to see just what the profits are for a high end speaker / headphone maker.

I think the bottom line number may be much lower than people imagine...
 
Mar 2, 2017 at 12:46 AM Post #1,650 of 2,108
It would be interesting to look at the accounts of say Focal to see just what the profits are for a high end speaker / headphone maker.

I think the bottom line number may be much lower than people imagine...


Marketing, R&D and distribution aren't cheap...
 

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