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Just listened to some Fostex T50RPs today... WOW! - Page 675

post #10111 of 10678

I just recently seasoned a cast iron pan, and I know you can do the same with aluminum. I wonder if that would work with the rods... ? blink.gif

post #10112 of 10678

Hello,

I need to make a quick buy decision regarding an amp+dac for these, i hope this is the place to ask. I must make an order this week (a relative of mine is visiting US and can help me) and i really don't have much time left for digging through hundreds of posts (i will gladly do this after i get them and start modding them).

 

I need something for desktop usage (USB input for audio), but something that's not too big and heavy, so it can be easily transported in the hand baggage. An DAC and AMP combo that is not more than 500 usd (but in reality, i would prefer under 300 usd) and can help me hear the subtle differences when tweaking the T50RPs. I know about the O2+ODAC, but i don't like how the inputs are placed, and who knows, maybe they are better options out there, that i don't know of. I was reading yesterday about the Alo Pan Am, a bit expensive at 500 usd, but i like the tubes, they look nice and gives me the option for further tweaking the sound to my liking. But i don't know how well it works with the Fostex and what other amp/dac combos are there (and maybe cheaper). Maybe you could help me. Thanks!

post #10113 of 10678
Quote:
Originally Posted by Dead Ghost View Post

Hello,

I need to make a quick buy decision regarding an amp+dac for these, i hope this is the place to ask. I must make an order this week (a relative of mine is visiting US and can help me) and i really don't have much time left for digging through hundreds of posts (i will gladly do this after i get them and start modding them).

 

I need something for desktop usage (USB input for audio), but something that's not too big and heavy, so it can be easily transported in the hand baggage. An DAC and AMP combo that is not more than 500 usd (but in reality, i would prefer under 300 usd) and can help me hear the subtle differences when tweaking the T50RPs. I know about the O2+ODAC, but i don't like how the inputs are placed, and who knows, maybe they are better options out there, that i don't know of. I was reading yesterday about the Alo Pan Am, a bit expensive at 500 usd, but i like the tubes, they look nice and gives me the option for further tweaking the sound to my liking. But i don't know how well it works with the Fostex and what other amp/dac combos are there (and maybe cheaper). Maybe you could help me. Thanks!

In addition to the odac and o2 you should look at the fiio e17 and the magni/modi combo.

post #10114 of 10678

@ Dead Ghost

 

I use the udac2 with my laptop when travelling and really like the way it sounds with the t50rp's. Actually I like this combo so much that I often use it at home as well (where I also have the Magni and a Little Dot I+). The match is just great (for my taste at least).

 

The udac2 is so cheap (and very small) so maybe you could use that on the road and add the O2 combo or Magni/Modi for home use (they sounds great with the Magni as well).

 

My t50rp's are modded to DBV#3.


Edited by peter123 - 4/8/13 at 11:27am
post #10115 of 10678
Quote:
Originally Posted by Dead Ghost View Post

Hello,

I need to make a quick buy decision regarding an amp+dac for these, i hope this is the place to ask. I must make an order this week (a relative of mine is visiting US and can help me) and i really don't have much time left for digging through hundreds of posts (i will gladly do this after i get them and start modding them).

 

I need something for desktop usage (USB input for audio), but something that's not too big and heavy, so it can be easily transported in the hand baggage. An DAC and AMP combo that is not more than 500 usd (but in reality, i would prefer under 300 usd) and can help me hear the subtle differences when tweaking the T50RPs. I know about the O2+ODAC, but i don't like how the inputs are placed, and who knows, maybe they are better options out there, that i don't know of. I was reading yesterday about the Alo Pan Am, a bit expensive at 500 usd, but i like the tubes, they look nice and gives me the option for further tweaking the sound to my liking. But i don't know how well it works with the Fostex and what other amp/dac combos are there (and maybe cheaper). Maybe you could help me. Thanks!

 

Take a serious look at Project Sunrise II Amps at garage1217 <dot> com. I have one and my modded Fostex and TDS 'phones sound wonderful with a variety of tubes. My current favorite tube is NOS Telefunken E88CC circa 1968. I use my Dacmini for DAC duty. I've also tried it with ODAC and Modi. All 3 sound very good with Project Sunrise II that comes fully assembled for less than $250.00.  So, you could get a DAC/Amp Combo for around $350.00 if you go with Project Sunrise II and either ODAC or Modi.

 

They also have Project Horizon for higher impedance 'phones and a new entry for less money called Project Starlight.

post #10116 of 10678

So I put a reflex dot (stock paper like you'll find in most business cards, 12mm in diameter) and also filled the vent with a teased cotton ball.

 

Well the sound did change a bit. Bass is close to neutral (but I would like a bit more quantity), upper mids are much better now but treble is a bit too over emphasised, especially on very sibilant tracks. I will try reducing the reflex dot down to 8mm or try another type of reflex dot and remove half of the teased cotton ball.

Oh yeah top tip. DO NOT fill plasticine on the rim of the baffle AND on the rim of the cup. It will create a much better seal yes, but you need to pry it out with a flat head screwdriver to separate them.

post #10117 of 10678
Quote:
Originally Posted by VortexBlast View Post

So I put a reflex dot (stock paper like you'll find in most business cards, 12mm in diameter) and also filled the vent with a teased cotton ball.



Well the sound did change a bit. Bass is close to neutral (but I would like a bit more quantity), upper mids are much better now but treble is a bit too over emphasised, especially on very sibilant tracks. I will try reducing the reflex dot down to 8mm or try another type of reflex dot and remove half of the teased cotton ball.
Oh yeah top tip. DO NOT fill plasticine on the rim of the baffle AND on the rim of the cup. It will create a much better seal yes, but you need to pry it out with a flat head screwdriver to separate them.

For more bass you could try making a smaller "chamber" ear-side like I did with mine here:



Just make a cutout like №3 using any rubbery stuff about 1 ~ 2 mm thick and stick it ear-side. Some old, free mousepad could do it (and now I feel old since they don't do this anymore since a long time).

Or you could try putting stiff felt behind the drivers inside the cup and make holes on the felt like in BMF's DBV #3 mod.
post #10118 of 10678
Quote:
Originally Posted by VortexBlast View Post

...

Oh yeah top tip. DO NOT fill plasticine on the rim of the baffle AND on the rim of the cup. It will create a much better seal yes, but you need to pry it out with a flat head screwdriver to separate them.


"... magic comes with a price"

post #10119 of 10678
Quote:
Originally Posted by jgray91 View Post


For more bass you could try making a smaller "chamber" ear-side like I did with mine here:



Just make a cutout like №3 using any rubbery stuff about 1 ~ 2 mm thick and stick it ear-side. Some old, free mousepad could do it (and now I feel old since they don't do this anymore since a long time).

Or you could try putting stiff felt behind the drivers inside the cup and make holes on the felt like in BMF's DBV #3 mod.

 

I will try that but in the meantime, I have covered the base port on the baffle with electrical tape and then made a little hole. At first, it did lift up the bass but way, waaaay too much. I then found out that I didn't cut the hole big enough so I used a paper clip to make it bigger. Now it's much better. It has the right amount of bass without sacrificing the treble much.

 

Quote:
Originally Posted by geetarman49 View Post


"... magic comes with a price"

 

Yes it does. Now I just fill the rim of the housing with plasticine. It should be more easier to separate the baffle from the housing.

 

Any idea now how to improve soundstage? biggrin.gif


Edited by VortexBlast - 4/9/13 at 10:40am
post #10120 of 10678
Quote:
Originally Posted by VortexBlast View Post


Any idea now how to improve soundstage? 

The bane of closed headphones.
post #10121 of 10678

I've purcheased a pair. In Europe they are so difficoult to find!

I will give a try to one of BMF versions in relation to materials I can find here in Italy, then I will experiment something else.

I'm hoping that this cans could achieve Srh 940 or Dt770 pro levels at least, and if it's the case I hope they can be compared to other open I have.

Thank you in advance for everything you put in this 3d!

post #10122 of 10678
Quote:
Originally Posted by jgray91 View Post


The bane of closed headphones.

I've heard that AKG K550 has good soundstage, i wonder how it compares to some modded T50 (Mad Dogs, for example).

post #10123 of 10678
Quote:
Originally Posted by Dead Ghost View Post

I've heard that AKG K550 has good soundstage, i wonder how it compares to some modded T50 (Mad Dogs, for example).

 

I own the K550 for a long time now and it has impressive soundstage for a closed can but its sound quality is nowhere near as good as a pair of modded T50RP.

post #10124 of 10678
Quote:
Originally Posted by Armaegis View Post

I just recently seasoned a cast iron pan, and I know you can do the same with aluminum. I wonder if that would work with the rods... ? blink.gif

 

Ok so I tried it on the gold rods. No sanding, just cleaned with some acetone. Result? Well... it's darker, but still golden. The oil has a tendency to bead on the surface as well, so I'm thinking there must be a coating already on the aluminum. I think it could reach a reasonably dark hue with a couple more applications, but for all that time and effort it might just be easier to find a place to powdercoat.

post #10125 of 10678
Quote:
Originally Posted by Armaegis View Post
 

 

Ok so I tried it on the gold rods. No sanding, just cleaned with some acetone. Result? Well... it's darker, but still golden. The oil has a tendency to bead on the surface as well, so I'm thinking there must be a coating already on the aluminum. I think it could reach a reasonably dark hue with a couple more applications, but for all that time and effort it might just be easier to find a place to powdercoat.


Edited by jibzilla - 6/3/14 at 11:12pm
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