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Go Back   Head-Fi: Covering Headphones, Earphones and Portable Audio > Equipment Forums > Headphones (full-size)

Headphones (full-size) Discussion of full-size headphones.

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Old 02-23-2008, 12:51 AM   #351 (permalink)
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Lightbulb My HFi780's

If you read some of the earlier posts, my 780 died in the first 5 minutes on my head...i didnt even get to take the plastic wrap off. RMC refers you to the manufacturer for service (RMC's service was A+ as far getting what i ordered to my door in a surprisingly fast time). I contacted ultrasone to fix it. Ultrasone gave me an RMA number and promised tags, then i never heard from them again.

So i took matters into my own hands...

i disassembled this headphone. For their sake im not going to put pictures of how poorly constructed or glued together this thing is. The cups are gilded with metal over plastic on the caps. The drivers are glued into place, and the wiring that goes from the left driver to the right is so crappy and it is pinched in so many places that i am not surprised that these cans stopped functioning for me. There is also some circuit board on there, well i got rid of that too.

I recently bought a equinox cable for my HD6x0 so i had an extra balanced cable in my closet. I decided to put it to use.



I forgot exactly how it sounded since i only had it working out of the box for 5 minutes, but i think it sounds world class now. I didn't do that great of a job touching up the wire exits since i just wanted to make it work.

I think it lost some bass (still has a LOT, no longer clouds up the mids) and became extremely forward. These cans have the clarity and mids of my 701 with very controlled and massive amounts of bass. Quite an interesting mix. They sound airy for a closed can.

I think these can definitely give an edition9 a run for the money now Lol.
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Old 02-23-2008, 01:28 AM   #352 (permalink)
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interesting development jh4db536. i'm sure ultrasone would have responded, they're probably just taking their time. as long as you're happy now

i'm curious about the circuit board. hardware crossfeed perhaps? some other algorithm that the ed9 shares to process sound? or merely overload protection? discuss.
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Old 02-23-2008, 01:41 AM   #353 (permalink)
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Not sure what it is

maybe it's put in there on purpose to degrade the 780 below the level of an edition 9 hehe


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Old 02-23-2008, 02:22 AM   #354 (permalink)
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Originally Posted by jh4db536 View Post
Not sure what it is

maybe it's put in there on purpose to degrade the 780 below the level of an edition 9 hehe
lol who knows.
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Old 02-23-2008, 02:41 AM   #355 (permalink)
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Originally Posted by jh4db536 View Post
If you read some of the earlier posts, my 780 died in the first 5 minutes on my head...i didnt even get to take the plastic wrap off. RMC refers you to the manufacturer for service (RMC's service was A+ as far getting what i ordered to my door in a surprisingly fast time). I contacted ultrasone to fix it. Ultrasone gave me an RMA number and promised tags, then i never heard from them again.

So i took matters into my own hands...

i disassembled this headphone. For their sake im not going to put pictures of how poorly constructed or glued together this thing is. The cups are gilded with metal over plastic on the caps. The drivers are glued into place, and the wiring that goes from the left driver to the right is so crappy and it is pinched in so many places that i am not surprised that these cans stopped functioning for me. There is also some circuit board on there, well i got rid of that too.

I recently bought a equinox cable for my HD6x0 so i had an extra balanced cable in my closet. I decided to put it to use.



I forgot exactly how it sounded since i only had it working out of the box for 5 minutes, but i think it sounds world class now. I didn't do that great of a job touching up the wire exits since i just wanted to make it work.

I think it lost some bass (still has a LOT, no longer clouds up the mids) and became extremely forward. These cans have the clarity and mids of my 701 with very controlled and massive amounts of bass. Quite an interesting mix. They sound airy for a closed can.

I think these can definitely give an edition9 a run for the money now Lol.
out of the box, it clouds up the mids? Has that been mentioned before? That is one thing I really HATE with bassy phones. Anyone else have that problem?
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Old 02-23-2008, 03:43 AM   #356 (permalink)
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They appear to be diodes, often used to protect the drivers from too much power. It is often felt that they degrade the sound though some well know and respected manufactures use them. And maybe they are there to degrade the sound. :^)

The Proline 750's have them. I have been intending to remove them.
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Headphones: Ultra Ed. 9, HD650, Ultrasone 750, HFI780, PortaPro modified, KSC35, Equation RP-21, Westone UM2
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Old 02-23-2008, 04:39 AM   #357 (permalink)
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The engineers put those extraneous parts there just to waste vast sums of company money....

And -- the person that received an RMA number for their non-working cans -- that is your clue to send the cans back for replacement. Why didn't you do that, instead of taking them apart? Please elaborate on this point?
And what is meant by a "tag" that was mentioned with the RMA number?
Trying to understand the last few posts here....
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Old 02-23-2008, 05:06 AM   #358 (permalink)
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Sometimes for 200 dollars it just isn't worth it. If it was a bad solder maybe it was a cry to be recabled. :^)
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Listening to: The Greatful Dead, The Closing of Winterland 1978, Fillmore West 1969, Lucinda Williams
Favorite headphone: Ultrasone Ed. 9 #1010
Listening to: Predator- an exceptional portable, Woo 6 Modified-pseudo dual PS, iBasso D2 Boa, the new Xin Reference
Portable amp ratings: *1. a. Xin Reference 12,000uf, b. RSA Predator*2. iBasso P2 *2. Micro IV*3. Mini IV *3. SR71 *4. D1 iBasso upgraded amp *5. iBasso P1 (upgraded opamps) *6. C & C Box (good decay, tilted up high frequency, slightly synthetic) *8 iBasso T1 *9. iBasso T2*10. XTRA X-1 (warm not neutral, very musical) *11. LD M+ These amps are enjoyable to listen to and present a slightly different interpretation of the musical signal.
Portable monitor ratings: *1. PortaPros, KSC35 (modified-a great value) *2. Amadana P-117 bamboo *3. UM2 (respond to top quality amplification but I don't enjoy their sound) *4. OVC 8+
Source: iRiver H130,140, D303 optical out, D-EJ955, D-EJ1000, D-EJ2000, 25s, 25, D-303, D-777 and others (optical out if available)
Digital Conversion: Altoid tin Monica Dac I, Altoid tin Monica II Asynchronous Reclocking Dac.
Headphone Amplifiers: iBasso D1, IV Micro, IV Mini, Xin Reference, SM3B, SuperMacro V LE, SM3 V6 Xin (IV all switches), XRTA X-1, LD Micro +, LD Micro Tube, C&C Box, iBasso P1, P2, D1, D2, Woo 3 Modified-Siemens 6922 driver, 7236 power tube, Woo 6 Modified Pseudo dual PS -
Headphones: Ultra Ed. 9, HD650, Ultrasone 750, HFI780, PortaPro modified, KSC35, Equation RP-21, Westone UM2
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Old 02-23-2008, 05:11 AM   #359 (permalink)
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So right now my D2000's are not really satisfying my needs. What I'm looking for is MORE bass impact which I am finding very little in my D2000's, and I guess a more suitable sound for metal and modern rock (e.g. foo fighters). I'm wondering if this is what the HFI-780 will bring to the table? I'm reading that the mids are better and it is an airier sound, and also that the impact of the bass is more than the D2000's. Just want to check with everyone here. Thanks.
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Old 02-23-2008, 05:22 AM   #360 (permalink)
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Originally Posted by souperman View Post
So right now my D2000's are not really satisfying my needs. What I'm looking for is MORE bass impact which I am finding very little in my D2000's, and I guess a more suitable sound for metal and modern rock (e.g. foo fighters). I'm wondering if this is what the HFI-780 will bring to the table? I'm reading that the mids are better and it is an airier sound, and also that the impact of the bass is more than the D2000's. Just want to check with everyone here. Thanks.
It does have better bass and all you just said. I do think it is better for Rock then the Denon's and I own the D2000 as well and still like it but this Can, to me. is more suited to Rock as it has more forward mids and is a more aggressive sound, I just compared to D2000 and the D2000 sounded so soft compared to the Ultrasone HFI 780.

I am enjoying it as it's burning in.
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