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PRO 750 & PRO 2500

post #1 of 16
7/21/08 at 10:56pm
Thread Starter 
Quote:
Originally Posted by stvn758 View Post
Are the Proline 2500's open back versions of the Proline 750's, they seem to have the same specs and price.

Thanks.
Yes, they are the same headphone, except that the 2500 is an open-back and the 750 is closed.

Hope this helped.
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post #2 of 16
7/21/08 at 11:03pm
Quote:
Originally Posted by ultrapaul View Post
Yes, they are the same headphone, except that the 2500 is an open-back and the 750 is closed.

Hope this helped.
but surely it is not as simple as opening or closing the holes . . . . I imagine there must be some 'adjustments' to compensate for the change from open to closed, no?
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post #3 of 16
7/22/08 at 6:30am
In addition to NiceCans' question, I'd like to ask.. Are they suppose to sound the same?
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post #4 of 16
7/22/08 at 6:52am
Quote:
Originally Posted by ultrapaul View Post
Yes, they are the same headphone, except that the 2500 is an open-back and the 750 is closed.

Hope this helped.
Thanks, it can get confusing.
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post #5 of 16
7/22/08 at 12:25pm
Thread Starter 
Quote:
Originally Posted by ZephyrSapphire View Post
In addition to NiceCans' question, I'd like to ask.. Are they suppose to sound the same?
Again, as I stated in a another thread, it all comes down to your own ears, and thier condition. But, most of us have already damaged our hearing when we were (are?) younger. So............

The PRO 2500 is designed to have a more spatial sound, while providing the exact same "flatness" as the PRO 750.

Did that help?
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post #6 of 16
7/22/08 at 12:27pm
Thread Starter 
Quote:
Originally Posted by NiceCans View Post
but surely it is not as simple as opening or closing the holes . . . . I imagine there must be some 'adjustments' to compensate for the change from open to closed, no?
Nope. Same on the inside, different on the outside.
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post #7 of 16
7/22/08 at 12:31pm
Here's for starters.

http://www.head-fi.org/forums/f4/ult...er-two-236823/

http://www.head-fi.org/forums/f4/den...d-both-248950/

http://www.head-fi.org/forums/f4/ult...ice-me-243468/

http://www.head-fi.org/forums/f4/ult...2500-a-224059/

http://www.head-fi.org/forums/f4/ult...review-179960/


Tips for searching: use two key words, for instance "750" and "2500", and select search for titles...





-Nick
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post #8 of 16
7/22/08 at 12:33pm
Quote:
Originally Posted by ultrapaul View Post
Again, as I stated in a another thread, it all comes down to your own ears, and thier condition. But, most of us have already damaged our hearing when we were (are?) younger. So............

The PRO 2500 is designed to have a more spatial sound, while providing the exact same "flatness" as the PRO 750.

Did that help?
Yep, thanks for the info.
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post #9 of 16
7/22/08 at 2:36pm
So they are neither open nor closed.

I just ordered a pair anyhow, obviously I hope they sound great but my main desire is to have a pair of cans I can lounge around in, every other pair I have had, Senn 600's, AKG 601's and now Grado 80's has fallen to bits cable wise - sound in one ear goes and it's onto a new brand.

These look sturdy and have just the one sided cable - I have high hopes.

If anyone has any insight into what causes this, does the copper cable inside literally snap, is the connection at the end of it pulled loose by an unfortunate snag?

Could of bought another pair of Senns the number of cables I had to replace.
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post #10 of 16
7/24/08 at 12:05pm
Quote:
Originally Posted by stvn758 View Post
So they are neither open nor closed.

I just ordered a pair anyhow, obviously I hope they sound great but my main desire is to have a pair of cans I can lounge around in, every other pair I have had, Senn 600's, AKG 601's and now Grado 80's has fallen to bits cable wise - sound in one ear goes and it's onto a new brand.

These look sturdy and have just the one sided cable - I have high hopes.

If anyone has any insight into what causes this, does the copper cable inside literally snap, is the connection at the end of it pulled loose by an unfortunate snag?

Could of bought another pair of Senns the number of cables I had to replace.
It sounds like you're really hard on your stuff. I've been an avid headphone user (professionally, and personally) for over 40 years and have NEVER had a headphone cable go bad in any of the dozens and dozens and dozens of headphones I've owned. How do you manage to break them?
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post #11 of 16
7/24/08 at 12:25pm
You're very lucky.. or I'm unlucky.

I always thought it might be getting the cable snagged - usually on my own body, lazing around it bed in them.

One quick turn and off they get yanked.
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post #12 of 16
7/24/08 at 12:38pm
Quote:
Originally Posted by stvn758 View Post
You're very lucky.. or I'm unlucky.

I always thought it might be getting the cable snagged - usually on my own body, lazing around it bed in them.

One quick turn and off they get yanked.
Perhaps it's a little of both. Perhaps you're a little careless with your cans and I'm a little too careful?
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post #13 of 16
8/7/08 at 12:26pm
BTW, respectfully, the answer to the question about the differences between the 2500 and the 750 discussed in this thread has not quite been complete thus far.

IME, additional differences between the two besides the opening in the back of the 2500 is that the ear pads also differ between the 750 and the 2500. The pads on the 2500s have ventilation holes in the plastic underneath the velour, whereas the 750 pads are "solid," providing a more complete seal to the wearer's ear. This is necessary to compensate for the open baffle of the 2500. If you were to use the 750 pad on the 2500, the bass would be way overblown, likewise, using the 2500 pad on the 750 would result in very thin, anemic sound.

Hope this helps clarify some things.
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post #14 of 16
9/20/08 at 2:48am
Quote:
Originally Posted by nick20 View Post
from that review site.. it says they have problems driving by an iPod?! humm i dont know if driving an iPod relates to impedance? coz i just tried an 2200ohm haha Logitech Premium Headset and it works well. at about 7/10 volume... so will the ProLine 750 able to be driving by my iPod Classic.
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post #15 of 16
9/20/08 at 10:49am
Quote:
Originally Posted by member1982 View Post
from that review site.. it says they have problems driving by an iPod?! humm i dont know if driving an iPod relates to impedance? coz i just tried an 2200ohm haha Logitech Premium Headset and it works well. at about 7/10 volume... so will the ProLine 750 able to be driving by my iPod Classic.
"Well" is a relative term. If you listen at very low volumes and your music preference is not classical/jazz (very large dynamic range) you will do ok. Otherwise get a dedicated headphone amp.
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