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"Mad Dog" by MrSpeakers, modified Fostex T50RP review - Page 334  

post #4996 of 6388
Quote:
Originally Posted by mrspeakers View Post

In response to Preproman's earlier enquiry, YES.  We'll be demonstrating balanced phones on a Schiit Gungnir/Mjolnir stack at the New York Audio Show next weekend, and also at the meet the following weekend.   

The phones will be on the site tomorrow, terribly photographed by yours truly.  We'll have a pre-order special on the phone + cable for $349, after which there will be a price hike, as the cable costs a lot and we have to modify the phones more extensively.  Final price is TBD.  

We're still finishing up the cable details, and expect to ship in May.  Guests at the NYC events can sample a few different cables we're testing and provide feedback.  


I purchased some mds I believe less than two weeks back ... Would it be possible to return them and bump up to balanced? If not no hard feelings.
post #4997 of 6388

BTW, for those who haven't seen it, this is the real production average for headphones the week that Tyll was shipped his unit.  His lower frequencies probably are pretty accurate, but typically there is a little swoop to the bass, as seen below.  But the key part is all above 1K, and you can see there is a really big difference.  As I said, the Mad Dog curves OUT at those critical frequencies.  

 

This is real data averaged from the whole week of product.  In places there's almost 10dB more output in our shipping phones' mids.

 

 

 

And the THD is:

 

 

 

The THD here is close to the noise floor of my system.  So I somehow against all odds have sent something wonky to Tyll.  I thought I'd share this if anyone had any lingering doubts.  

post #4998 of 6388

I have never seen such a beautiful FR. That thing is amazing. Bravo, Mrspeakers:)

post #4999 of 6388

Thank you, but I want to point out: this is an AVERAGE plot.  It smooths out little blips but the key point is it represents the whole production run, and variations are kept +/-2dB without a rebuild/test.  So an individual phone can be a little lumpier, though they're usually very down the middle.  

post #5000 of 6388
Quote:
Originally Posted by mrspeakers View Post

BTW, for those who haven't seen it, this is the real production average for headphones the week that Tyll was shipped his unit.  His lower frequencies probably are pretty accurate, but typically there is a little swoop to the bass, as seen below.  But the key part is all above 1K, and you can see there is a really big difference.  As I said, the Mad Dog curves OUT at those critical frequencies.  

 

This is real data averaged from the whole week of product.  In places there's almost 10dB more output in our shipping phones' mids.

 

 

 

And the THD is:

 

 

 

The THD here is close to the noise floor of my system.  So I somehow against all odds have sent something wonky to Tyll.  I thought I'd share this if anyone had any lingering doubts.  

Those graphs are beautiful smily_headphones1.gif

Do you have any CSDs for the Alpha pads?

post #5001 of 6388

Could we get the THD y-axis on a log scale?

post #5002 of 6388
Quote:
Originally Posted by mechgamer123 View Post

Those graphs are beautiful smily_headphones1.gif

Do you have any CSDs for the Alpha pads?


Thanks...  

 

Here's a specific unit out of the run, Frequency response (so you can see it's a little bumpier than the average):

 

 

 

And it's CSD:

 

 

No smoothing or filters, and that's high res data.  

post #5003 of 6388
Quote:
Originally Posted by mrspeakers View Post

 

It is a friction assembly, so if you paint the sliders the paint is going to get shredded and look instantly awful.  I'm not sure but I think these are an anodized aluminum, not powder coated. You'd probably have to talk to a shop to make sure they can be safely powder coated, and be aware that a thick coat or a rough coat may ruin the slider.  

 

Obviously I won't warranty anything a user does to modify the phone, so if your driver failed (none ever has) I'd repair it, but if the mechanical assembly has problems or you ruin the tuning by opening the phone (very easy to mess up) I'd charge to repair.

 

I don't encourage opening the phones up; it's possible to break the lead wires or mess up the tuning if you don't put it back exactly correctly.  


Dunno why I did not remember this at the time. Cabela's sells a product called Birchwood Casey Aluminum Black. It is basically a cold anodizing agent for aluminum and works fairly well.

post #5004 of 6388
Quote:
Originally Posted by Armaegis View Post

Could we get the THD y-axis on a log scale?

 

Not in my software, I'd have to export and replot, so sorry but no...

post #5005 of 6388
thanks for all your ideas and input I am looking at all of those portable DAC's now but since MrSpeakers is on here a lot what would be your opinion on a good portable DAC for the MD's with alpha pads for all types of music but listen to a lot of rock, country and pop with the Samsung galaxy S3 and when it's out the fiio X3?
post #5006 of 6388
Quote:
Originally Posted by thoir View Post

thanks for all your ideas and input I am looking at all of those portable DAC's now but since MrSpeakers is on here a lot what would be your opinion on a good portable DAC for the MD's with alpha pads for all types of music but listen to a lot of rock, country and pop with the Samsung galaxy S3 and when it's out the fiio X3?

I'm using the Meier Quickstep and UD100 with my S3 which sounds great with the MD's. I think they benefit from a transparent amp.

post #5007 of 6388

That's for others, not me.  MOT, can't answer these types of questions. But share your budget, as that helps narrow the field...

post #5008 of 6388
my budget is $300 and any more ideas the more I have too look into the better smily_headphones1.gif
post #5009 of 6388
Quote:
Originally Posted by thoir View Post

my budget is $300 and any more ideas the more I have too look into the better smily_headphones1.gif

What about a practical devices XM6? I saw one on here for sale with all the upgrades for $250.

post #5010 of 6388
yeah that one looks interesting I will look into it smily_headphones1.gif
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