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Speaker amps for headphones - Page 69

post #1021 of 2892
Quote:
Originally Posted by zilch0md View Post
 

 

Done!  I just ordered it.  Thanks Stew!

 

 

Remainder of my previous post (Click to show)

 

http://www.amazon.com/gp/product/B003U8O2OY

 

Again, I have to say, this is not among my usual genre of preference, but the MG3 simply sings this Lawrence Juber stuff!

 

I love it when the gear is connecting all the dots so well that almost everything starts sounding worthy of your time!  My horizons are expanding. 

 

Take for example, my recently deceased father's love of Ray Stevens (a singing comedian).  I was shuffling through my library and started playing Ray Steven's Ahab the Arab.  Give me a break - it's really a good recording, but it has never sounded so musical, before - in addition to the entertaining lyrics.

 

:D

 

Mike

 

 

 

Thanks again Stew!  I can't get enough of Volume 2!  

 

Laurence Juber's rendition of Drive My Car is such a unique "re-arrangement" of that song and his guitar sounds so fantastic with the MG3 to LCD-2!  

 

And, you're right - Vol. 2 is indeed better than the first.  :D

 

Please tell me what else you like for the MG3 and your Paradox.  Expand my horizons!  It's about the music, after all.  

 

:beerchug:

 

Meanwhile, I've returned the HM-801 for a refund under their 30-day policy.  As a card reader to DAC with analog Line Out, it just didn't offer any substantial benefit over my more neutral Sony PCM-M10.

 

I'm back to using the PCM-M10 as a portable DAC and the CEntrance DACmini CX as my desktop DAC for the MG3.

 

But I've ordered something else to try with the MG3.   I'm determined to go "transportable" with the MG3, so I'm trying to find a portable DAC with card reader that can significantly outperform my PCM-M10.

 

Next up...  The TASCAM DR-100 Mk II

 

D3S_7717-left-1200.jpg

 

 

Read Ken Rockwell's review here, and check out the very good measurements he captured of this digital recorder's 96/24-capable DAC.  If you order one, use the links he provides at his page.  If you're unfamiliar with Ken, let me say that he has made a lot of great contributions to photographic and audio gear at his web site.

 

TASCAM is a division of TEAC corporation.  Their DR-100 Mk II is yet another example of how much we're asked to pay for gear that sells exclusively to the relatively tiny market of headphone users.  Contrast the parts count and build quality of this relatively mass-produced, $300 recorder/player to that of the far more expensive iBasso DX100 or HiFiMan HM-901.  Even if I never use it as a recorder, if its Line Out sounds any better than my $239 Sony PCM-M10, it will be just as good a value for the money.

 

Impressions with the MG3 > LCD-2 are forthcoming.  Here's hoping they get along nicely!

 

Is there anyone else on this thread hoping to use the MG3 as part of a "transportable" headphone rig (or is everyone using it strictly as a desktop amp)?

 

Thanks!

 

Mike


Edited by zilch0md - 9/14/13 at 9:19pm
post #1022 of 2892
Quote:
Originally Posted by JamieMcC View Post
 

Hi guys hoping for a little advice on using a valve speaker amp for powering my HD650's and Beyer T1's  specifically the minimax amp below.

 

Eastern Electric MiniMax Integrated Amplifier 8W http://eeaudio.com/eeaudio_008c.htm

 

Has this idea any merit and if so which would be the best way to connect the headphones direct to speaker outs via rca y splitter to headout or via something like this dummy load box I have seen being sold on ebay?

 

http://www.ebay.co.uk/itm/RAT-HOTROD-VALVE-AMP-SPEAKER-DUMMY-LOAD-HEADPHONE-AMPLIFIER-LINE-OUT-BOX-16-OHMS-/130978100167?pt=UK_MusicalInstr_Amplifiers_RL&hash=item1e7ee733c7

 

I have never used tube amplification before and its become an itch that just needs needs to be scratched and would like to try both in main hifi system and with headphones the minimax turns up quiet regularly on the second hand market and has had some good reviews. Might going down this route give results on par with a dedicated tube head amp.

 

TIA

TIA:

 

The dummy load just appears to be a resistor box, set up to match the output impedance of the amp and to burn off power.  I assume it has the advantage of being set up for single-ended headphones (a picture of the inputs/outputs would have been nice...), so it should work with your headphones, though I don't know that you actually need it.  With the amp only putting 8 wpc into 8 ohms, it will only put ~100 mW maximum into the T1's 600 ohms... or ~200mW into the HD650s 300 ohms... if you put resistors into that chain you might bleed off too much power to get the best out of those cans.  I think you just need to make sure that the entire chain is grounded properly, and that you have a way to connect the cans to the amp (speaker taps set up for SE).  But we need the real experts around here to chime in...

post #1023 of 2892

Thanks Gary that is very helpful, I had been wondering due to the low output if the resistor box would be necessary. Getting my head round converting the  8 wpc into 8 ohms as you have done so seeing it put as you have ~100 mW maximum into the T1's 600 ohms... or ~200mW into the HD650s 300 ohms is starting to make a lot more sense.

post #1024 of 2892

Mike, 

 

Glad you like Juber plays Beatles, volume two.

 

You might want to check out any of Leonard Cohens' latest offerings. I think he's a songwriter who has gotten better with age, and the latest recordings sound pretty darn good over headphones. (Ten New Songs, Old Ideas). But, got to say, Leonard is an acquired taste singing wise. My wife is not a fan. :smile:

 

I have a personal bias toward John Hammond, as I am a big fan and personal friend. His latest offering is on Chesky Records (Rough and Tough), and also sounds awesome on a good system, and gives a good taste of what he has been doing for around 50 years now. He is not touring as much these days, but if you get a chance to see him live, you will not be disappointed; no better live act, other than Springsteen, IMHO.

 

Some of Lucinda Williams records sound great, and she is another fantastic singer/songwriter backed by a top notch band. Car Wheels On A Gravel Road is a great sample of what she does and a very good recording overall....although the songs vary in recording quality somewhat, which I believe may have been purposeful in order to give some of them a more raw feeling.  

 

We are big fans of Ryan Adams (my wife LOVES him). Ashes and Fire is pretty stripped down, and his cd Gold is one of the best rock albums out there. Both sound awesome. (Not to be confused with Bryan Adams, please!)

 

Okay, that should keep you busy.....

 

Stew

post #1025 of 2892
Quote:
Originally Posted by JamieMcC View Post
 

Thanks Gary that is very helpful, I had been wondering due to the low output if the resistor box would be necessary. Getting my head round converting the  8 wpc into 8 ohms as you have done so seeing it put as you have ~100 mW maximum into the T1's 600 ohms... or ~200mW into the HD650s 300 ohms is starting to make a lot more sense.

Again, you will probably need something between the headphones and the amp to ensure that the amp sees the right load and that everything is grounded properly, but if the resistor values in that box are too high, you might not get enough power to the cans to drive them properly.  Or maybe you will.  I'm hoping some of the tubists around here will chime in...

post #1026 of 2892

Thanks Stew!

 

I just reviewed them all via Spotify.  I'd never heard any of them, before.  Very much appreciated!

 

Leonard Cohen's Old Ideas - creepy voice but great recordings.  I'm with your wife on this one, though.  :o

 

John Hammond's Rough and Tough - I have a hard time with that bluegrass sound (I hope that's the right classification), but he's a great performer, for sure.

 

Lucinda Williams' Car Wheels on a Gravel Road - Much more to liking, despite my usual rejection of Country/Western. Her lazy voice is compelling.

 

Ryan Adam's Gold - My favorite of this bunch. 

 

As I said before, thanks for "expanding my horizons!"

 

 

 

By the way, a CD-quality playback of this is awesome on the MG3.   Close your eyes (trust me, the video ruins it.)

 

Ingrid Michaelson's The Way I Am, from the album Girls and Boys

 

 

Mike


Edited by zilch0md - 9/15/13 at 9:05am
post #1027 of 2892
Quote:
Originally Posted by zilch0md View Post
 

Thanks Stew!

 

I just reviewed them all via Spotify.  I'd never heard any of them, before.  Very much appreciated!

 

Leonard Cohen's Old Ideas - creepy voice but great recordings.  I'm with your wife on this one, though.  :o

 

John Hammond's Rough and Tough - I have a hard time with that bluegrass sound (I hope that's the right classification), but he's a great performer, for sure.

 

Lucinda Williams' Car Wheels on a Gravel Road - Much more to liking, despite my usual rejection of Country/Western. Her lazy voice is compelling.

 

Ryan Adam's Gold - My favorite of this bunch. 

 

As I said before, thanks for "expanding my horizons!"

 

 

 

By the way, a CD-quality playback of this is awesome on the MG3.   Close your eyes (trust me, the video ruins it.)

 

Ingrid Michaelson's The Way I Am, from the album Girls and Boys

 

 

Mike

I'll need to check if I can pull this off of Youtube, via the Oppo player that I have connected to the Millenia; it's not connected to my computer.....different system, different room. But this tune sounds very promising off my computer. I also like her voice.

 

John Hammond plays mostly delta blues, as well as some Piedmont style; but as can be said of any genre, not  everyones' 'cup of tea'. 

post #1028 of 2892
Quote:
Originally Posted by JamieMcC View Post
 

Hi guys hoping for a little advice on using a valve speaker amp for powering my HD650's and Beyer T1's  specifically the minimax amp below.

 

Eastern Electric MiniMax Integrated Amplifier 8W http://eeaudio.com/eeaudio_008c.htm

 

Has this idea any merit and if so which would be the best way to connect the headphones direct to speaker outs via rca y splitter to headout or via something like this dummy load box I have seen being sold on ebay?

 

http://www.ebay.co.uk/itm/RAT-HOTROD-VALVE-AMP-SPEAKER-DUMMY-LOAD-HEADPHONE-AMPLIFIER-LINE-OUT-BOX-16-OHMS-/130978100167?pt=UK_MusicalInstr_Amplifiers_RL&hash=item1e7ee733c7

 

I have never used tube amplification before and its become an itch that just needs needs to be scratched and would like to try both in main hifi system and with headphones the minimax turns up quiet regularly on the second hand market and has had some good reviews. Might going down this route give results on par with a dedicated tube head amp.

 

TIA

 

If the 650s and T1s have a 4 wire headphone cable you should be able to connect the headphone directly to the output jacks on the power amp.

 

I've successfully done this with a pair of Sennheiser HD424 and a 250 Watt per channel solid state amp.

post #1029 of 2892
Stew and Gary,

I know you are both using speakers with the MG3 (in addition to headphones)...

I'm feeling a lot less energy transmitted into the table top, having isolated my monitors with these Auralex Mopad foam wedges. I can't say for sure that it sounds better, but where's the energy going now that the table isn't vibrating?



The angle is perfect for my near-field setup. I had been propping them up with a pair of shot glasses, previously! :-)

http://www.amazon.com/Auralex-Monitor-Isolation-Speakers-Charcoal/dp/B0002D0B4K/

Mike
Edited by zilch0md - 9/17/13 at 4:42am
post #1030 of 2892
Mike,

Makes sense, given your particular speaker set up.

My speaker system with Millenia is in our living room space. The speakers (the Clue) sit on top of about 19" high Skylan speaker stands, up against the wall behind them. Anyone using small monitor speakers next to their computer should definitely check out those foam wedges you are using.

Stew
post #1031 of 2892
Quote:
Originally Posted by zilch0md View Post

Stew and Gary,

I know you are both using speakers with the MG3 (in addition to headphones)...

I'm feeling a lot less energy transmitted into the table top, having isolated my monitors with these Auralex Mopad foam wedges. I can't say for sure that it sounds better, but where's the energy going now that the table isn't vibrating?



The angle is perfect for my near-field setup. I had been propping them up with a pair of shot glasses, previously! :-)

http://www.amazon.com/Auralex-Monitor-Isolation-Speakers-Charcoal/dp/B0002D0B4K/

Mike

You're probably losing some of that "live" sound that was provided by the table transmitting the vibrations would be my guess. Let your ears be your guide on this one. Perhaps try cutting up an old cardboard box laying around, making a small wedge in the front, and experiment placing different amounts of layers underneath the backside. If you find that optimal table vibration/isolation you're looking for then just tidy up the cardboard so it look nice with paint or something and happily return the Auralex :)

 

EDIT: you can also just try placing various layers of cardboard underneath your table cover and go back to using the shot glasses. This may provide less table vibration, but still allow some through.

 

Best,

Brunk


Edited by brunk - 9/17/13 at 5:51am
post #1032 of 2892

There are a lot of speaker and guitar amp isolation products out there, all with reviews saying that the isolation brings on tighter bass, more radiated bass, etc.  Bass guitarists are particularly sold on the idea of decoupling their amps from the stage floor, even saying that a foam wedge can make their amps louder.

 

It kind of makes sense to me, but I can't A/B the foam wedges easily at all (with and without), so I haven't even tried.

 

That said, I don't hear any difference, and I have to wonder whether the energy that previously radiated through the table isn't just getting absorbed by the foam, rather than expelled through the drivers or out the reflex port in the rear.  ???

 

As Brunk pointed out, I could be feeling deprived of the vibration that made the sound more "live,"  but I hadn't really thought of it that way.  Having considered it now, I'm thinking I should get rid of the foam blocks.  :o  Then again, are all those reviews written by people who are imagining things?

 

In the end, my ears are happy, but my hands and forearms might start complaining.   :D

 

Mike

post #1033 of 2892

My guess is that the energy is being absorbed into the foam, and turned into heat... hook up some super-sensitive precision calorimeters and put on some Red Hot Chili Peppers (the band, not the actual peppers... ) and see if you measure any temperature gain!!!  :biggrin:

 

As far as my speakers, they almost depend on coupling to furniture and walls to get enough bass energy out.  If I put them up on foam (which I have from previous acoustic projects) I'm afraid I'd lose all of the bass.  Note that I actually had to doctor the shelf I had them on because they were getting too much crappy reverb from the cheap particle board backing of the furniture they're in, so I put moving blankets behind them.  Ugly, but sounds better (ahh, yes, the glories of not having a significant other to complain about how bad my speaker set up looks...)

 

post #1034 of 2892

Thanks Gary,

 

I have so much to learn about room acoustics.  

 

That's one of the things that make headphones so easy to use, but we take it for granted.

 

:-)

 

Mike

post #1035 of 2892

I'm certainly no expert, but I do know that good acoustics are often difficult to achieve in any room that is not purposefully designed around the sound system.  The reason I went to cans is because I have a room with about as bad an acoustical background as you could possibly imagine (all hard surfaces, lots of funky angles, ceiling heights varying from 9 feet to ~25...).  There was no reasonable way to tame it, even if I didn't have anybody whining at me about how ugly all of that foam was.  So I gave up and moved my Vandersteen speakers into the basement HT, where I have foam stapled all over the room even though it is a much simpler acoustic environment).  I doubt I have the foam in the right places, but it sounds fine to me, much better than before I installed the panels and corner blocks, and the dogs don't complain about how it looks...

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