[rusnak666]

So which one bore is for what purpose? There are 3 bores, 2 bigger and one small, i think the knowles dampers fits only in the bigger bores, or I'm wrong? Maybe FiiO could help to explain? Thanks

I found that i can order knowles dampers in 4 diameters: 1,12mm, 1,37mm, 1,78mm and 2,08mm, does anybode know which one is for mids? Thank You

 

[rendyG]

I just ordered some knowles dampers from digikey, so im very excited to see the results... after i removed the mesh from FH5 i see that fiio is using only one damper, is it for mids?

No, it is for highs.
Mid tube is undampened, thus my idea to insert some light damper to tame the 2k peak which bothers some.

Sorry for late reply, I don't have time this week..

edit: I don't think it is necessary to dampen the smallest tube (bass) since it is DD..
Btw, does anyone know if fiio uses active crossover in these?

 

[rusnak666]

OK, FiiO replied to me just now, the bore with white dumper is for highs and the small bore is for the mids (red arrow in the picture), the diameter is 1,5mm, the other bigger one without damper is for bass...

 

[rendyG]

I bought my dampers here, they fit the bigger bores..

2PCS Balanced Armature Damping Damper Plugs filters Knowles Acoustic Dampers for Shure Se215 se315 se425 se535 Se846 TF10 LM5144
https://s.click.aliexpress.com/e/bekWQ5J7

edit: interesting, I expected the small tube is for bass..
I should have time this weekend, I will measure the effect of inserting/changing the filters

 

[gLer]

I bought my dampers here, they fit the bigger bores..

2PCS Balanced Armature Damping Damper Plugs filters Knowles Acoustic Dampers for Shure Se215 se315 se425 se535 Se846 TF10 LM5144
https://s.click.aliexpress.com/e/bekWQ5J7

edit: interesting, I expected the small tube is for bass..
I should have time this weekend, I will measure the effect of inserting/changing the filters

Thanks - can you tell us which one to buy to fit the smaller (midrange) bore, and which resistance to buy to bring down the 2khz peak by 3-6dB? Look forward to your impressions.

 

[rendyG]

Thanks - can you tell us which one to buy to fit the smaller (midrange) bore, and which resistance to buy to bring down the 2khz peak by 3-6dB? Look forward to your impressions.

Not sure yet, I would start with the lowest resistance ones, as I think more damping will screw with the overall tonality too much..
Do you feel 2k needs 3-6dB cut? I think that is a bit too much, isn't it?
I will know more at friday/saturday, now I'm stilla bit surprised that fiio replied to rusnak that the smallest tube is for mids (seems strange to me).

 

[rusnak666]

I bought my dampers here, they fit the bigger bores..

2PCS Balanced Armature Damping Damper Plugs filters Knowles Acoustic Dampers for Shure Se215 se315 se425 se535 Se846 TF10 LM5144
https://s.click.aliexpress.com/e/bekWQ5J7

edit: interesting, I expected the small tube is for bass..
I should have time this weekend, I will measure the effect of inserting/changing the filters

Looking forward to your measurements of changing the filters... Thanks

 

[gLer]

Not sure yet, I would start with the lowest resistance ones, as I think more damping will screw with the overall tonality too much..
Do you feel 2k needs 3-6dB cut? I think that is a bit too much, isn't it?
I will know more at friday/saturday, now I'm stilla bit surprised that fiio replied to rusnak that the smallest tube is for mids (seems strange to me).

I also assumed the largest bore would be for bass. And no, I don’t think the FH5 mids need any tweaking at all. However it might be fun to experiment with the midrange peak to see what it does to the rest of the FR. Since I hate using EQ, and my dap (M9) doesn’t have system wide EQ, an inexpensive damper could be the way to go. That said, I’m perfectly happy with the FH5 as-is, especially now that I’ve found M size Spiral Dots form a perfect seal, as do Dekoni Bulletz. Both sound outstanding with the FH5.

 

[rendyG]

OK, so my original idea is down, because the second big tube is for lows (as reported by rusnak above).
However, I still have an interesting results from a few experiments I´ve done..

I´ll take Brooko´s measurements as baseline, because his rig is much more accurate:

We see a 2k peak which some people don´t like and 7k peak which was for me personally more disturbing than the 2k one.
I wasn´t able to tame 2k yet, because damper with smaller diameter would be needed, not sure if we can buy them somewhere??

BUT, I managed to target the 7k peak and bring it down a few dB, which sounds good imho.
purple = stock
yellow = stock grey damper replaced by brown damper


Then I put the stock grey damper in the big tube for lows.
This is the configuration I´m currently testing: green = grey damper for lows + brown damper for highs:


In case there are some trebleheads stock vs grey damper removed..



I don´t have time to make any comments now, but I think most of you will find the graphs informative.

 

[rendyG]

I found that i can order knowles dampers in 4 diameters: 1,12mm, 1,37mm, 1,78mm and 2,08mm, does anybode know which one is for mids? Thank You

Do you know where to buy one of the dampers with lower diameter?
The ones I got from ali are 2.08mm and fit "only" the two larger tubes..

 

[rusnak666]

Do you know where to buy one of the dampers with lower diameter?
The ones I got from ali are 2.08mm and fit "only" the two larger tubes..

Hi, yes, it can be ordered from mouser.com

https://www2.mouser.com/Electromechanical/Audio-Devices/Speakers-Transducers/_/N-awp4u?P=1yyy7vr

 

[rusnak666]

Hi, yes, it can be ordered from mouser.com

https://www2.mouser.com/Electromechanical/Audio-Devices/Speakers-Transducers/_/N-awp4u?P=1yyy7vr

FiiO told me that the smaller bore is 1.50mm, I cant find any damper with this diameter... so maybe we can try the 1.37mm?

 

[rendyG]

FiiO told me that the smaller bore is 1.50mm, I cant find any damper with this diameter... so maybe we can try the 1.37mm?

Yes, smaller should work, you can always use something to keep them from falling out..
But I think mouser charges a lot for shipping, unless you order for more than 50€

I will try to make some diy filter, but the tube is freaking small

 

[Steve Guppy]

I have to say, I absolutely love my FH5's. And they sound exquisite connected to the balanced output of my Q1ii. Also, I think for my personal preference the Symbio N"s sound even better than the W's. The fit is slightly smaller, and for me more comfortable and i prefer the extra touch of bass They were, however, a sod to get on. One question. I'm getting quite a bit of static like background noise randomly, which i never heard with my 1more's. Would this be the cable, a trait of the balanced output, or the monitors themselves? Sorry for my ignorance I'm fairly new to this. Any help advice or tips would be greatly appreciated

 

[Mirimar]

I have to say, I absolutely love my FH5's. And they sound exquisite connected to the balanced output of my Q1ii. Also, I think for my personal preference the Symbio N"s sound even better than the W's. The fit is slightly smaller, and for me more comfortable and i prefer the extra touch of bass They were, however, a sod to get on. One question. I'm getting quite a bit of static like background noise randomly, which i never heard with my 1more's. Would this be the cable, a trait of the balanced output, or the monitors themselves? Sorry for my ignorance I'm fairly new to this. Any help advice or tips would be greatly appreciated

I think you might find that it’s the balanced output on the Q1ii. I have a Q1ii and I get the same thing with the FH5. Try moving it away from a phone or anything connected to wifi/Bluetooth as the Q1ii is fairly well known to not have good shielding from outside interference. Hope that helps.