"Mad Dog" by MrSpeakers, modified Fostex T50RP review
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Armaegis

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That's almost guaranteed to come from the potentiometer. It's very difficult to get the tracks perfectly even at the beginning with a standard taper pot. Chances are the mistracking follows through for most of the pot, but the effects are relatively insignificant higher up.
 
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anoxy

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Wore my Dogs to class today with the iPhone 4S > Arrow 3G rig. Listening to Sly and the Family Stone's 'Fresh'.

I just couldn't take them off my head when I left the house. So I said screw it and whipped out the ol' umbrella so they didn't get ruined in this crap weather :]
 
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mrspeakers

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Quote:
That's almost guaranteed to come from the potentiometer. It's very difficult to get the tracks perfectly even at the beginning with a standard taper pot. Chances are the mistracking follows through for most of the pot, but the effects are relatively insignificant higher up.
 
If I recall correctly, Ray Samuels throws out about 50% of the pots he gets due to tracking issues....
 
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Armaegis

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At that point I wonder if it'd almost be cheaper just to go with digital volume control.
 
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mrspeakers

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At that point I wonder if it'd almost be cheaper just to go with digital volume control.
He does on a couple of products.  But that can have artifacts, too...
 
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gmoney9438

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Hi guys,
 
I've seen some guys on the forums do rewiring for their mad dogs. Now they have a pair of wires splitting and going to each cup instead of one straight wire to the left cup. What does that do to the mad dogs? Sorry I'm still a headphone newbie.
 
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In theory, it could reduce imbalance to the cups and give you more efficiency. In reality it probably wouldn't do much and would void the warranty. 
 
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mrspeakers

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Quote:
Hi guys,
 
I've seen some guys on the forums do rewiring for their mad dogs. Now they have a pair of wires splitting and going to each cup instead of one straight wire to the left cup. What does that do to the mad dogs? Sorry I'm still a headphone newbie.
 
In most cases I'm aware of, this is done by people who want to use the Mad Dog with a balanced amp.  A balanced amp requires + and - wires for each channel, instead of having + for each channel with a shared ground (-).  
 
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Armaegis

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It also allows you to mod/damp both cups identically, previously impossible due to the jack on the one side.
 
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MattTCG

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It also allows you to mod/damp both cups identically, previously impossible due to the jack on the one side.
 
While you are right, I'm not sure that it's an audible difference. 
 
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mrspeakers

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It also allows you to mod/damp both cups identically, previously impossible due to the jack on the one side.
 
I wouldn't encourage that...  The units have been channel balanced during manufacturing, trying to change anything will likely degrade performance. Also, opening the phones up voids the warranty.
 
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Quote:
Hi guys,
 
I've seen some guys on the forums do rewiring for their mad dogs. Now they have a pair of wires splitting and going to each cup instead of one straight wire to the left cup. What does that do to the mad dogs? Sorry I'm still a headphone newbie.
They looks prettier so your brain tells you they sound better. 

 
I don't see any benefit to this other than changing the termination, different ergonomics from various cables and looks.
 
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Armaegis

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Quote:
 
I wouldn't encourage that...  The units have been channel balanced during manufacturing, trying to change anything will likely degrade performance. Also, opening the phones up voids the warranty.
 
Oh whoops, I thought I was in the regular T50rp thread...
 
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mikek200

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Isn't the manufacturers  warranty voided,after you do the mod??
So...?,any issues,we just send it back to you-correct?
 
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mrspeakers

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Isn't the manufacturers  warranty voided,after you do the mod??
So...?,any issues,we just send it back to you-correct?
 
Yes, I warranty the headphone, not Fostex.  So even if one of their parts fails I cover it, as my updates void the original warranty.  So far, I have only had one warranty repair (just a cable issue) and one with bad ball joint that hasn't been sent back yet, so they've been super reliable.
 
That said, I don't warranty units that have been opened or modified, for obvious reasons...  
 
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