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"Mad Dog" by MrSpeakers, modified Fostex T50RP review - Page 330  

post #4936 of 6388
Anyone seen Tyll's latest Mad Dogs measurements? They're not posted yet under IF's measurements page but they can be found in the all inclusive AllGraphs.pdf linked on his April news update... Highs seems to roll off harder than before, tho FR 10-1K seems smoother.
Edited by Impulse - 4/6/13 at 6:43pm
post #4937 of 6388
Quote:
Originally Posted by Impulse View Post

Anyone seen Tyll's latest Mad Dogs measurements? They're not posted yet under IF's measurements page but they can be found in the all inclusive AllGraphs.pdf linked on his April news update... Highs seems to roll off harder than before, tho FR 10-1K seems smoother.

Sheesh, that THD seems frighteningly high...

post #4938 of 6388
Meh, they still sound good to me.
post #4939 of 6388

I sent Tyll one of our production reference units.  As we went to full production, I felt it was super smooth, but a bit too dark, so we added more energy in the 1-6K range, and eliminated that small dip around 5K and boosted output above 10K.  I'll have more to say about that in our upcoming newsletter this week.  

 

There's plenty good there, though.  I'm pleased to see how flat it is, and how the square waves look, as well as the sub-bass extension and the channel balance.  I'm not sure why he shows the distortion increase, our production distortion is typically down about 5-10dB from the Dog Pads on our bench.  I'll check the phones out when they get back and see what's up with that...

 

But as people here always say, the mids are a great strength of this phone. Alas, I made the choice not to send Tyll an adjusted unit as I knew he'd already tested it. In hindsight that wasn't my best call.  Face palm.  But I'll get Tyll another set later this year so he can keep his plots current, perhaps sending a balanced unit.  

 

As usual, big thanks to Tyll for what he does.


Edited by mrspeakers - 4/6/13 at 7:56pm
post #4940 of 6388

Interesting figures:

Old Mad Dog (840 pads? I think that is the first measure Tyll did) - Power Needed for 90d BSPL:  0.52 mW

New Mad Dog 2013 - Power Needed for 90d BSPL:  0.29 mW

 

1-5kHz region old Mad Dog seems to be more similar to LCD2 by just looking at the frequency graph shapes. In the other regions the new Mad Dog is more like the LCD2 (again just looking at the frequency graph shapes).

 

I tried the Stax O2 pads (brown) some time ago on my old Mad Dog (1st version with 840 pads) but didn't like it that much, although some parts in the sound signature got better (more bass, soundstage), but mids to me sounded a little distant so I went back to 840 pads.

 

Some day I will probably buy the new one as well. I like the Mad Dog very much.

post #4941 of 6388

Good points, I didn't even look at those efficiency numbers, but you're correct, the new version is more efficieint.  And the update I mentioned that came after I sent these to Tyll added another 2dB of efficiency, so I continue to make progress on that.  I'd guess it's probably below 20mW to 90 dB now.  I use it on my iPhone without an amp a lot when I'm doing chores.  

 

The current curve from 1-5K is quite close to the LCD2, but it wasn't when I sent Tyll this. 

post #4942 of 6388
Thanks for commenting on this Dan! I had noticed the square waves looked much better as well but forgot to mention it... I guess you've made just as much progress over time with the internal mods as with the pad revisions even tho we tend to focus more on the latter huh? Understandably I imagine it's harder to disclose more about the former, for a variety of reasons.

Seems like the changes you ended up doing on the high end would've probably pleased Tyll... Maybe it's time to start differentiating between revisions? Though, again, I know that always turns into a hornet's nest... Or did you tie most changes in with the Alpha Pad release?
Edited by Impulse - 4/6/13 at 8:26pm
post #4943 of 6388
Quote:
Originally Posted by mechgamer123 View Post

Sheesh, that THD seems frighteningly high...

 

It certainly does. It surprises me a lot that distortion is that high and I wonder if the sample he measured might be operating poorly. I certainly don't hear it (or don't think I do) and high distortion like that is in the audible range at 90dB. If the volume to distortion relationship remains true, it's even higher at volumes that are safe for extended listening.

 

I would certainly hope that something is wrong with that particular pair. If not, I don't hear anything wrong with my pair, so I guess I can live with it anyway.

post #4944 of 6388

Just bought the MrSpeakers mad dog + magni with gungnir... My ESP-950 are clearly more clean.. the maddog feel closed in and resonant.. not sure if its because both the magni and the mad dog arent burn in.. but still.. really wish the ESP-950 had more bass impact... (maybe it's the amp).. really not sure yet about the maddog.. something is bothering me for now. there's a veil of some kind.. maybe magni is not up to task but there is plenty of power ... maybe not burn in.... maybe its the closed signature/color..  

 

What is the step up from the ESP-950 in term of resolution and clarity.. :) with better imaging, soundstage, bass impact and texture.. 

 

LCD3?

 

Anybody tried the maddog with open vent? 


Edited by Audiolic - 4/6/13 at 9:38pm
post #4945 of 6388
Quote:
Originally Posted by Audiolic View Post

Just bought the MrSpeakers mad dog + magni with gungnir... My ESP-950 are clearly more clean.. the maddog feel closed in and resonant.. not sure if its because both the magni and the mad dog arent burn in.. but still.. really wish the ESP-950 had more bass impact... (maybe it's the amp).. really not sure yet about the maddog.. something is bothering me for now. there's a veil of some kind.. maybe magni is not up to task but there is plenty of power ... maybe not burn in.... maybe its the closed signature/color..  

 

What is the step up from the ESP-950 in term of resolution and clarity.. :) with better imaging, soundstage, bass impact and texture.. 

 

LCD3?

 

Anybody tried the maddog with open vent? 

 

The Mad Dog is limited...as are all orthos, er, except the HE-6.

 

So, HE-6 if you want that stat experience with plenty of impact.

 

But uh, ya gotta get a speaker amp of quality to make it worthwhile.

post #4946 of 6388
Use the MD alone for a week. You're just too used to the different tonality of the other headphone. Also, open vs closed is a whole other subject, which makes comparing even harder. You have to expect a loss of openness and some resonance.

Also, not sure if the ESP is bright or not, but if it is, it makes comparing to the MD worse, as the MD is darkish.

This is why I hate comparing two headphones with clearly different tonalities.
post #4947 of 6388
Quote:
Originally Posted by Audiolic View Post

Just bought the MrSpeakers mad dog + magni with gungnir... My ESP-950 are clearly more clean.. the maddog feel closed in and resonant.. not sure if its because both the magni and the mad dog arent burn in.. but still.. really wish the ESP-950 had more bass impact... (maybe it's the amp).. really not sure yet about the maddog.. something is bothering me for now. there's a veil of some kind.. maybe magni is not up to task but there is plenty of power ... maybe not burn in.... maybe its the closed signature/color..  

 

What is the step up from the ESP-950 in term of resolution and clarity.. :) with better imaging, soundstage, bass impact and texture.. 

 

LCD3?

 

Anybody tried the maddog with open vent? 

 

As far as the ESP-950's are concerned, have you tried them out of a higher output source?  I know the Gungnir can put out 4V in balanced mode, but it's the standard 2V from the single-ended output.  I've found the E/90 to be relatively insensitive.  I can get decent volume out of my 2V sources, but I find that the dynamic range and impact increase a bit when I use a 4V source or a preamp.    

 

As far as the next part of your question, I'd say the best options would be the HD800 and HE-6.  If you took out the soundstage component, then the LCD-3 would certainly be on the list as well.

post #4948 of 6388

From the website:

 

Quote:

STATUS ALERT:  In stock.  Now includes a black velvet storage bag.

 

Do you have any pictures?

 

Edit:  Nevermind, found some.


Edited by Sekka - 4/6/13 at 10:27pm
post #4949 of 6388
Quote:
Originally Posted by Audiolic View Post

Just bought the MrSpeakers mad dog + magni with gungnir... My ESP-950 are clearly more clean.. the maddog feel closed in and resonant.. not sure if its because both the magni and the mad dog arent burn in.. but still.. really wish the ESP-950 had more bass impact... (maybe it's the amp).. really not sure yet about the maddog.. something is bothering me for now. there's a veil of some kind.. maybe magni is not up to task but there is plenty of power ... maybe not burn in.... maybe its the closed signature/color..  

 

What is the step up from the ESP-950 in term of resolution and clarity.. :) with better imaging, soundstage, bass impact and texture.. 

 

LCD3?

 

Anybody tried the maddog with open vent? 


Stax. Period.

post #4950 of 6388
Quote:
Originally Posted by mrspeakers View Post

I sent Tyll one of our production reference units.  As we went to full production, I felt it was super smooth, but a bit too dark, so we added more energy in the 1-6K range, and eliminated that small dip around 5K and boosted output above 10K.  I'll have more to say about that in our upcoming newsletter this week.  

 

There's plenty good there, though.  I'm pleased to see how flat it is, and how the square waves look, as well as the sub-bass extension and the channel balance.  I'm not sure why he shows the distortion increase, our production distortion is typically down about 5-10dB from the Dog Pads on our bench.  I'll check the phones out when they get back and see what's up with that...

 

But as people here always say, the mids are a great strength of this phone. Alas, I made the choice not to send Tyll an adjusted unit as I knew he'd already tested it. In hindsight that wasn't my best call.  Face palm.  But I'll get Tyll another set later this year so he can keep his plots current, perhaps sending a balanced unit.  

 

As usual, big thanks to Tyll for what he does.

 

I'm a bit confused about this whole situation...are you saying you've made further changes to the Mad Dog since the alpha pads release? Or did he get one without the alpha pads? Just trying to figure out exactly what Tyll measured.

 

I was definitely surprised by the distortion measurements. They seem unexpected and abnormally high, so I'm curious to see what you find out about this! :)

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