Go Back   Home > Forums > >
Home Forums Rules Articles diyAudio Store Blogs Gallery Wiki Register Donations FAQ Calendar Search Today's Posts Mark Forums Read

Faital pro build too bright - cross over filter help please!
Faital pro build too bright - cross over filter help please!
Please consider donating to help us continue to serve you.

Ads on/off / Custom Title / More PMs / More album space / Advanced printing & mass image saving
Thread Tools Search this Thread
Old 16th October 2018, 12:46 PM   #21
grahamgraham is offline grahamgraham  United Kingdom
diyAudio Member
grahamgraham's Avatar
Join Date: Oct 2016
Location: London
I am redesigning some cabs for these drivers in the next few days. I have the 4ohm variant so does this mean the inductor value should be lower -> 0.68mh? I'm going to get a variable L-Pad to determine the exact R value.

The baffle will remain very narrow but might be over 8" tall so BSC should kick in at around 1khz?
  Reply With Quote
Old 17th October 2018, 07:02 AM   #22
criper is offline criper
diyAudio Member
Join Date: Nov 2015
Default your setup

I have a 1mH air core coil and in paralel 22 ohm resistor that lowers a little bit the annoying heights on the 3 fe 25. 8 ohm.It is better with 1.2mH but at certain passages fades too much the voice.The 3 fe 22 is a lost case , anything I do they sound really bad. I actually play them with the equalizer at minimum between 1.8 and 6K Hz.

I use them only for medium and high frequencies, bass is too weak from these speakers.
I think the best I can do is throw them out the window after collecting the magnets, then buy some decent speakes . Any suggestion?
  Reply With Quote
Old 17th October 2018, 04:31 PM   #23
Lingwendil is offline Lingwendil  United States
Now with high-fructose ASSAULT-gluten!
diyAudio Member
Lingwendil's Avatar
Join Date: Apr 2008
Location: Oakley California
Faital pro build too bright - cross over filter help please!
Honestly, I would build something like the following circuit, it is adjustable, and will not reduce the efficiency of the speaker. Easy to do the math for different drivers as well.

Baffle Step Compensation

Simply rounding to the next nearest commonly available parts value on the capacitors (IE, 10nF, 15nF, 22nF, 27nF, 33nF, 47nF, etc) will be just fine. Your room will have more error than the math in this application. You can also parallel values to get oddball numbers if needed.

I find line-level EQ is always better, even if it's a bit more complicated.
Check out My 6SN7 Push-pull Flea Amplifier project! PCB COMING SOON!

Last edited by Lingwendil; 17th October 2018 at 04:34 PM.
  Reply With Quote
Old 17th October 2018, 05:48 PM   #24
xrk971 is online now xrk971  United States
Got Foam?
diyAudio Member
xrk971's Avatar
Join Date: Oct 2012
Location: Metro DC area
Faital pro build too bright - cross over filter help please!
My 3FE25-16's (four of them) just arrived today, looking forward to installing them in these dual driver 0.53x scale Karlsonator cabinets that should be arriving tomorrow. The cabinets were made for me out of the goodwill of a generous member - thanks! (I won't disclose who until they ok me to release).

In reading about the possible sibilance, I did order a pair of 20ga 1mH air core coils and assortment of 10W resistors to make a BSC. In parallel, the 3FE25-16's should be about 97dB sensitive (at 2.83v).

Here are the new boxes that will arrive shortly. I will see if I can get the dampening materials just right to get rid of the wooden box curse on the mini-K's.
Faital pro build too bright - cross over filter help please!-karlsonator53_front-jpg
Attached Images
File Type: jpg karlsonator53_front.jpg (715.0 KB, 305 views)
XRKaudio https://www.etsy.com/shop/XRKAudio
  Reply With Quote
Old 18th October 2018, 03:35 AM   #25
perceval is offline perceval  Taiwan
diyAudio Member
perceval's Avatar
Join Date: Feb 2014
Location: Taiwan
Good luck taming the wooden ones.
That's a sweet gift!

I have had the plan of doing a pair in 3mm plywood. They would be a bit more resilient than the foam core when traveling around with them. And hopefully, the thin plywood would also resonate a bit, and with added damping, could maybe sound like the foam ones.
  Reply With Quote
Old 18th October 2018, 11:37 PM   #26
FullRangeMan is offline FullRangeMan  Brazil
diyAudio Member
FullRangeMan's Avatar
Join Date: Aug 2009
Location: Brazil
Originally Posted by grahamgraham View Post
Hi all! I just built some 3" ported full range speakers from faital 3fe25's but they are incredibly bright. I hace seen the frequency graph but didn't expect them to be quite so trebly!

I'm a bit confused about how to go about fixing this. I know I need a resistor and a capacitor across the + and - but not sure what values. The driver is 4ohm. I was thinking maybe I should order a few different types of capacitor and swap them out and see what happens. Ideally I think I want to take the 10k area down. What range of caps should I try and what resistor is needed?

You will not want fix it with nocth filter to lost all the harmonics from the music, instead fix it passivelly:
How Treat Passively Peaky Fullrange Drivers
>Never go to a psychiatrist, adopt a cat or dog from the streets. On the streets pets live only two years average.
  Reply With Quote


Faital pro build too bright - cross over filter help please!Hide this!Advertise here!
Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
Rod Elliot P3A build sounds too bright/harsh/agressive Ravenash Solid State 37 25th June 2017 09:40 AM
high pass filter for faital 4fe32 hormilo Multi-Way 11 22nd April 2015 01:41 AM
Capacitors for Onken-Mahul cross-over filter alayn91 Multi-Way 3 9th December 2013 11:52 AM
cross-over filter support ?? alayn91 Multi-Way 1 9th November 2013 08:51 PM
Fourth Order Cross over or notch filter? alvaius Multi-Way 40 28th February 2006 05:11 AM

New To Site? Need Help?

All times are GMT. The time now is 03:25 AM.

Search Engine Optimisation provided by DragonByte SEO (Pro) - vBulletin Mods & Addons Copyright © 2018 DragonByte Technologies Ltd.
Resources saved on this page: MySQL 14.29%
vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2018 DragonByte Technologies Ltd.
Copyright ©1999-2018 diyAudio