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Pioneer HDJ-2000 bass boost/extension mod - Page 3

post #31 of 45
11/22/11 at 11:43am

yeah Im a moderate bass head too :D m50 sufficed my bass needs, except needs a little more strength, not amount just strenght. anyway which of this mods part makes the most difference? 

also can you replace the hdj 2000 cable with a shorter one? 


Edited by WakiDabeast - 11/22/11 at 11:47am
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Gear mentioned in this thread:

Pioneer HDJ-2000 Reference Professional Dj Headphones
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post #32 of 45
11/22/11 at 12:36pm
Thread Starter 

The felt inside makes the biggest difference. After that, I'd say the lump on blutak in the cup crevices and the ring of dampening material on front of the baffle.

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post #33 of 45
3/24/12 at 1:29pm

Is there anything that isn't as messy as blutak that a first time modder can use with little consequence?

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post #34 of 45
3/25/12 at 2:29pm
Thread Starter 

Plumber's putty. Not as sticky, but more malleable and easier to work with, and $3-4 gets you a big tub of it from any hardware store. 

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post #35 of 45
3/26/12 at 11:17am
Quote:
Originally Posted by Armaegis View Post

Plumber's putty. Not as sticky, but more malleable and easier to work with, and $3-4 gets you a big tub of it from any hardware store. 



I was actually told the bass in these headphones was really prevalent. I'm not a very versed Head-Fi'er and I don't understand what problem you were having to begin with. Was the bass too flimsy or something?

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post #36 of 45
3/28/12 at 8:50am
Thread Starter 

The sub-bass rolled off a little sooner than I wanted, but we're talking <60Hz here which most music doesn't hit unless you're into electronica. Really, I was just looking for an excuse to mod my headphones tongue.gif (if you check my profile, you'll notice most of my cans have been modified or transplanted or operated upon). 

 

For any headphone, adding mass and semi-solid vibration dampeners should improve low end response. Removing hard reflective surfaces behind the driver will typically decrease treble peaks. It's when you start messing with the cup chamber/acoustic filler and air seal that you start to get wacky results. 

 

I didn't do anything too fancy to the Pioneer other than mass load it in places and used felt to get rid of a treble peak (because I hate treble peaks).

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post #37 of 45
3/28/12 at 9:01am
Quote:
Originally Posted by Armaegis View Post

The sub-bass rolled off a little sooner than I wanted, but we're talking <60Hz here which most music doesn't hit unless you're into electronica. Really, I was just looking for an excuse to mod my headphones tongue.gif (if you check my profile, you'll notice most of my cans have been modified or transplanted or operated upon). 

 

For any headphone, adding mass and semi-solid vibration dampeners should improve low end response. Removing hard reflective surfaces behind the driver will typically decrease treble peaks. It's when you start messing with the cup chamber/acoustic filler and air seal that you start to get wacky results. 

 

I didn't do anything too fancy to the Pioneer other than mass load it in places and used felt to get rid of a treble peak (because I hate treble peaks).


I'm thinking of filling in that hollow ring and covering the vents. If I only do those two, what results should I expect?

 

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post #38 of 45
3/30/12 at 10:26am
Thread Starter 

My steps 5 and 6 on the first page list my impressions from filling in the ring and covering the vents. Overall, I felt both had a very minor effect on the sound. The ring would improve bass slightly, and covering the vents I felt had more to do with isolation and wind than actual sound quality.

 

I'm thinking next I might try sealing around the outer rim of the baffle plate with some putty, which should have a noticeable effect.

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post #39 of 45
3/30/12 at 11:50pm
Thread Starter 
Quote:
Originally Posted by Armaegis View Post

I'm thinking next I might try sealing around the outer rim of the baffle plate with some putty, which should have a noticeable effect.



Yowza, that did the trick. Bass extension is noticeably improved. 

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post #40 of 45
3/31/12 at 11:31pm
Is this a significant bass boost? If the current bass level (out of 10) was lets say, a 5 what would you say the new level is?
Edited by AUdIOYO - 3/31/12 at 11:33pm
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post #41 of 45
3/31/12 at 11:44pm
Thread Starter 

It's not a boost so much as it corrects rolloff. The bass around 50-100 Hz is mostly unchanged. The bass from 30-50Hz I would say goes up two notches. 

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post #42 of 45
3/31/12 at 11:56pm
Thanks I will Try this forsure. So essentially your just lining the contact  between the baffle and cup with blutack to seal the cup?
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post #43 of 45
4/1/12 at 9:30am
Thread Starter 

Yes. I would recommend a putty/plasticine though, otherwise you'll have a very hard time opening them up again. In my case, I actually laid a small foam paper ring over the putty for cleanliness since I didn't want the putty to mush into the felt that I have in the cup. 

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post #44 of 45
4/2/12 at 3:10am
Thanks for the tip, I'll try this the next time I go back to the pioneers. Have had a hard time putting down the modded t50rp's!
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post #45 of 45
5/21/12 at 9:40am
Thread Starter 

I replaced the felt layer inside with fuzzy velour and moved the felt circle in front of the driver under the pad. This smoothed out the bass hump. 

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Gear mentioned in this thread:

Pioneer HDJ-2000 Reference Professional Dj Headphones
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