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Bottlehead Amplifier Discussion / Comparison Thread: Crack, SEX & Mainline - Page 23

post #331 of 573

Can the Mainline drive ortho planar headphones better than the S.EX? I am going to buy a Mrspeakers Alpha Dog and I am thinking a powerful amp to drive it, the S.E.X and the Mainline are in my thought now. What is the maximum output of Mainline at 30-50 Ohm? Thanks, very nice review at this time. I am very happy to read it.


Edited by LoveKnight - 1/6/14 at 10:46pm
post #332 of 573
Thread Starter 
The S.E.X. definitely has more power on tap, especially if wired on the 32 ohm taps (or using the impedance switch). I'm hoping to get some LCD 2s soon so will know first hand, but no doubt others can comment from experience.
post #333 of 573
Quote:
Originally Posted by LoveKnight View Post
 

Can the Mainline drive ortho planar headphones better than the S.EX? I am going to buy a Mrspeakers Alpha Dog and I am thinking a powerful amp to drive it, the S.E.X and the Mainline are in my thought now. What is the maximum output of Mainline at 30-50 Ohm? Thanks, very nice review at this time. I am very happy to read it.

 

My AD's just arrived this evening, and I'm running them from my mainline as I type.  They seem to require a slightly more juice than hd800's (about 1 notch on the coarse attenuator = 9db) but rest assured that the mainline can easily drive them to ear splitting volume.  Enjoying the combo and my first evening with the AD's quite a bit, even if it is a little weird to listen to closed phones after spending so much time with the wide open sound of hd800's. 


Edited by skeptic - 1/6/14 at 11:00pm
post #334 of 573
Thread Starter 
Quote:
Originally Posted by skeptic View Post
 

 

My AD's just arrived this evening, and I'm running them from my mainline as I type.  They seem to require a slightly more juice than hd800's (about 1 notch on the coarse attenuator = 9db) but rest assured that the mainline can easily drive them to ear splitting volume.  Enjoying the combo and my first evening with the AD's quite a bit, even if it is a little weird to listen to closed phones after spending so much time with the wide open sound of hd800's. 

 

Although I expect there's enough power as well as gain, have you tried the ADs from anything else to see how the Mainline drives them compared to other amps? Volume alone isn't always an indicator of sufficient power, but I do expect the Mainline to be easily up to the task on all fronts.

post #335 of 573

The Mainline puts out 600mW from the 32 ohm (low) tap into 32 ohms. It puts out 600mW into 64 ohms from the high tap. We have run it with LCD2s with no problem, and I suspect most other planars will work fine. The AKG K1000 is the one can I would use a S.E.X. with over the Mainline. In fact that setup is at my desk at the office for a while, in place of the usual HD800/Mainline setup.


Edited by Doc B. - 1/7/14 at 8:05pm
post #336 of 573
Thread Starter 
Has anyone tried HE500s with the Mainline? I'm hearing that they'd benefit from the extra power of the SEX, but would love to hear opinions.

Doc, how do you like the LCD 2s? I'm either going for those or HE500s next, but can't decide.
post #337 of 573
They are both good brands. My experience is that they have different presentations and you probably need to listen to them both and decide which works best for you.
post #338 of 573
Thread Starter 

Fair call. Trying to find both for an audition is the tricky part! ;)

post #339 of 573

I think the balanced output of the Mainline can double 600mW to 1200mW but it seems to the Mainline can not :confused:. I read at the Bottlehead forum and some members said too.


Edited by LoveKnight - 1/7/14 at 10:47pm
post #340 of 573
No, balanced output is the same 600mW. I think maybe someone is confusing push pull amplifiers with balanced signal connections.
post #341 of 573

I am sorry, I am not good at these kind of things but I am still looking for a tube amp which has at least 1W and when I found the Mainline, everything about its sound signature really makes me to have one but the maximum output is not as I expected. Look like I have to wait for Loquah to pair with a planar headphone and see his result.

post #342 of 573
Quote:
Originally Posted by LoveKnight View Post
 

I am sorry, I am not good at these kind of things but I am still looking for a tube amp which has at least 1W and when I found the Mainline, everything about its sound signature really makes me to have one but the maximum output is not as I expected. Look like I have to wait for Loquah to pair with a planar headphone and see his result.


The difference between the Mainline and what you're looking for is a little more than 2dB, so that is worth considering.

 

If you really do need that kind of power, the SEX amp will fit the bill. 

post #343 of 573
Thread Starter 
Yes, the S.E.X. is the amp I bought specifically for (efficient) planars.
post #344 of 573
How about powering the planars straight from the speaker tap. Currently using the SEX and it doesn't do well with the planars. Needs a touch more power and slam so if you plug in and planars sound too bright, you know what's happening.
post #345 of 573

There are lots of different planar headphones. It would be helpful if you mentioned which planar headphones aren't working for you.

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