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Speaker amps for headphones - Page 52

post #766 of 2645

Mike (and others):

 

You will hear hiss with LCD-2s if you power them with the Millenia without a resistor box.  It is clearly audible on the -3s, using balanced cables, and I don't believe that the -2s are that different.  Jan has apparently indicated that the only cans that might not need resistors are the HE-6s, and I wouldn't bet on that either.  That said, the hiss isn't so horrible that you can't listen to the music.  Some of us are old enough to remember what cassette tapes sounded like waaaay back in the '70s... The Millenia with cans but without a resistor box sounds like a very good cassette deck playing stuff recorded at very low levels that force you to boost the volume.  The music sounds good, but the hiss is clearly audible.  I listened to it for a week after I sent the first box back and before I had the Cyclops and replacement boxes, and it didn't hurt me, in fact it made me feel like a kid again, listening to tapes!  Okay, that isn't true, I'm still an old fart, but I doubt that Mike will incur any permanent damage, other than whatever he incurs from battery incidents.

post #767 of 2645

Actually, I should have read Victor's post above more closely.  He hears hiss with the HE-6s, which does not surprise me, since even HE-6s are more efficient than speakers. 

 

Okay, back to the work meeting that I'm supposed to be paying attention to, instead of writing nonsensical posts here...

post #768 of 2645
Quote:
Originally Posted by SMG52 View Post

Interesting. Thanks for that clarification. I may have misunderstood Jan's email.

 

Sorry if you mentioned it elsewhere, but how do you like the combination of the Millenia with HE-6?

 

No worries, I think it was the first time that I mentioned it. :)  

 

I liked the combination but I always felt that I was missing a bit of air/detail/transparency. Then I got a Leben CS300XS and I stopped using the Millenia with the HE-6s. The Leben has a so beautiful and engaging sound that even still missing some air/detail/transparency I find difficult to look back.

 

Quote:

Originally Posted by SMG52 View Post

From Gary's experience, as well as that of victorcc above, (as well as mine), seems likely there will be a background hiss. But, you should get to enjoy the amp with music playing, I would assume, before the resistor box arrives.  

 

It is enjoyable of course but only if you are not that picky about background noise. :)

post #769 of 2645

Gary.. did you give us impressions of the Millenia w/ the 'new' resistor box?  I seem to remember seeing impressions with just the (faulty?) "original" box (which was rigged for SE use, no?).


Edited by FlySweep - 8/21/13 at 5:54pm
post #770 of 2645
Quote:
Originally Posted by victorcc View Post

 

 

It is enjoyable of course but only if you are not that picky about background noise. :)

I have read really great things about the Leben amps. Some people who liked the Millenia with their speaker systems got great results using a tube preamp, to get more of the kind of sound they enjoy. I have used tube equipment with my various speaker systems, on and off for many, many years. Some gave me great sound...... there can be something very special with well designed tube gear that is hard to duplicate with solid state. I have an audiophile friend who bemoans dealing with his tube equipment, but I don't think he would ever be convinced of going solid state.

 

I assume you use the headphone out?

post #771 of 2645
Quote:
Originally Posted by Gary in MD View Post


Mike:

 

What I've learned recently about the Cyclops is that it sounds great with lower-quality transfers as well.  My nephew gave me a lot of low-bit-rate MP3s, and they sound incredibly good with the Cyclops.  Not as good as FLACs, but waaaay better than they did using my Adcom pre-amp.  I also tried listening to some crappy pop recordings (Neon Trees) and even they sounded good. 

 

And I am not using a resistor box (or any other resistors) with this amp.  There is absolutely no need for it. 

 

I am familiar with Californication and was very impressed with your testimony regarding how the Cyclops managed to sort out that wall-o-sound.  Your comments above, reinforce this.  Amazing!

 

Mike

post #772 of 2645

In an e-mail from Jan Plummer, today, he reiterated what Stew had told us previously - and which I still find astounding:  Jan says (paraphrasing) that a set of 8 AA alkaline batteries could last several weeks in the MG3!  That it's so efficient, the self-discharge rates typical of rechargeable NiMH batteries that are not in use can actually exceed the discharge rates during use.  What?  It's true that with the exception of NiMh batteries like the Eneloop brand (and perhaps a couple of others), they can loose 10% of their charge daily, but to hear that self-discharge rates could exceed discharge during usage makes me wonder how many hours or minutes a day some of these MG3 users are actually listening to their MG3s.  biggrin.gif

 

I know Jan isn't exaggerating - there's no incentive for him to do so.  I just think he's heard reports of some users experiencing this kind of performance from AA batteries and is saying it like it is!  Yee-haw! 

 

Jan added that the MG3 has a feature applied to power coming from the battery compartment which is not applied to power coming from the external power jack:  When no audio signal is detected "for a few minutes," the amp goes into a standby mode, pulling less than 1mA from the battery compartment while it waits for the audio signal to resume.  Cool!  

 

It's beginning to sound as if my 3600 mAh 6-cell LiPo pack is going to be overkill in terms of capacity.  That thing might operate the MG3 for months on a single charge!    So much for my trying to reverse-engineer the MG3's current demands by considering that the fuse will blow at 4 Amps!   If a set of AA batteries can last for weeks, the MG3 must hum along pulling something like 45 mA (which is what Jan Meier says is the maximum continuous load his Stepdance portable amp pulls from a much smaller 9V battery that only lasts about 12 hours.)   

 

I'm still scratching my head and can't wait to do some battery capacity tests!

 

Mike

post #773 of 2645
Quote:
Originally Posted by zilch0md View Post

In an e-mail from Jan Plummer, today, he reiterated what Stew had told us previously - and which I still find astounding:  Jan says (paraphrasing) that a set of 8 AA alkaline batteries could last several weeks in the MG3!  That it's so efficient, the self-discharge rates typical of rechargeable NiMH batteries that are not in use can actually exceed the discharge rates during use.  What?  It's true that with the exception of NiMh batteries like the Eneloop brand (and perhaps a couple of others), they can loose 10% of their charge daily, but to hear that self-discharge rates could exceed discharge during usage makes me wonder how many hours or minutes a day some of these MG3 users are actually listening to their MG3s.  biggrin.gif

 

I know Jan isn't exaggerating - there's no incentive for him to do so.  I just think he's heard reports of some users experiencing this kind of performance from AA batteries and is saying it like it is!  Yee-haw! 

 

Jan added that the MG3 has a feature applied to power coming from the battery compartment which is not applied to power coming from the external power jack:  When no audio signal is detected "for a few minutes," the amp goes into a standby mode, pulling less than 1mA from the battery compartment while it waits for the audio signal to resume.  Cool!  

 

It's beginning to sound as if my 3600 mAh 6-cell LiPo pack is going to be overkill in terms of capacity.  That thing might operate the MG3 for months on a single charge!    So much for my trying to reverse-engineer the MG3's current demands by considering that the fuse will blow at 4 Amps!   If a set of AA batteries can last for weeks, the MG3 must hum along pulling something like 45 mA (which is what Jan Meier says is the maximum continuous load his Stepdance portable amp pulls from a much smaller 9V battery that only lasts about 12 hours.)   

 

I'm still scratching my head and can't wait to do some battery capacity tests!

 

Mike

 

Yes, when using internal batteries, the Millenia goes into power saver mode with no signal for a few minutes. Then when you hit play again, you may hear a bit of a skip on your track as the amp kicks back on. Small inconvenience, which may prompt you to start the track over again. When that first happened, I thought something was wrong.
post #774 of 2645
Quote:
Originally Posted by SMG52 View Post

 

Yes, when using internal batteries, the Millenia goes into power saver mode with no signal for a few minutes. Then when you hit play again, you may hear a bit of a skip on your track as the amp kicks back on. Small inconvenience, which may prompt you to start the track over again. When that first happened, I thought something was wrong.

 

I can live with that inconvenience for the sake of battery life.  Thanks for the heads up!

post #775 of 2645

Millenia has arrived, folks.. haven't had a chance to open it up.. but will do so soon.  I'm giddy like a kid on Christmas morning.

post #776 of 2645
Quote:
Originally Posted by zilch0md View Post

In an e-mail from Jan Plummer, today, he reiterated what Stew had told us previously - and which I still find astounding:  Jan says (paraphrasing) that a set of 8 AA alkaline batteries could last several weeks in the MG3!  That it's so efficient, the self-discharge rates typical of rechargeable NiMH batteries that are not in use can actually exceed the discharge rates during use.  What?  It's true that with the exception of NiMh batteries like the Eneloop brand (and perhaps a couple of others), they can loose 10% of their charge daily, but to hear that self-discharge rates could exceed discharge during usage makes me wonder how many hours or minutes a day some of these MG3 users are actually listening to their MG3s.  biggrin.gif

 

I know Jan isn't exaggerating - there's no incentive for him to do so.  I just think he's heard reports of some users experiencing this kind of performance from AA batteries and is saying it like it is!  Yee-haw! 

 

Jan added that the MG3 has a feature applied to power coming from the battery compartment which is not applied to power coming from the external power jack:  When no audio signal is detected "for a few minutes," the amp goes into a standby mode, pulling less than 1mA from the battery compartment while it waits for the audio signal to resume.  Cool!  

 

It's beginning to sound as if my 3600 mAh 6-cell LiPo pack is going to be overkill in terms of capacity.  That thing might operate the MG3 for months on a single charge!    So much for my trying to reverse-engineer the MG3's current demands by considering that the fuse will blow at 4 Amps!   If a set of AA batteries can last for weeks, the MG3 must hum along pulling something like 45 mA (which is what Jan Meier says is the maximum continuous load his Stepdance portable amp pulls from a much smaller 9V battery that only lasts about 12 hours.)   

 

I'm still scratching my head and can't wait to do some battery capacity tests!

 

Mike

Yeah, that makes more sense.  LCD-2/3 is going to use a few to some 10s of mW RMS?  Even with HE-6's, you should get nice long battery life.  Loud passages rarely take more than 400 mW RMS.  Takes a lot more energy to move a full size speaker than it does our little Ear Speakers...

post #777 of 2645
Quote:
Originally Posted by FlySweep View Post

Gary.. did you give us impressions of the Millenia w/ the 'new' resistor box?  I seem to remember seeing impressions with just the (faulty?) "original" box (which was rigged for SE use, no?).


Yup, starting here:

 

http://www.head-fi.org/t/649107/speaker-amps-for-headphones/480

 

Look for post 495 and then a few pages later, the Millenia review includes the new box.

post #778 of 2645
Quote:
Originally Posted by FlySweep View Post

Millenia has arrived, folks.. haven't had a chance to open it up.. but will do so soon.  I'm giddy like a kid on Christmas morning.

Mine, too! And I haven't opened mine either! Priorities... Arrgh!

It feelth like kwithmuth! :-)
post #779 of 2645

Fly and Zilch:

 

Hope you like the Millenia, otherwise my hopes of making big bucks as a headphone amp pontificator in my retirement years will be dashed... Oh, wait, there's no such thing as making big bucks as a headphone amp pontificator... Never mind then....

 

But I hope you like the amp anyway.  And hurry up and start listening already... your audience awaits...

post #780 of 2645
Quote:
Originally Posted by zilch0md View Post


Mine, too! And I haven't opened mine either! Priorities... Arrgh!

It feelth like kwithmuth! :-)

Christmas in August.  Not bad!  Mine shipped today... Ground... tongue_smile.gif

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