Bandwidth limiting T amp

MattV · 2nd April 2007, 08:36 PM

Hello all,

I am putting together a system in which I would like to use a T amp to
power horn loaded Fostex FE166E's from around 400 HZ up. I have modded the
T amp as per Panomaniac's directions and am wondering if it is possible to change the value of the input capacitor to cause the amp to act as a high pass filter?

Thanks

M Vaughn

Pano · 2nd April 2007, 09:04 PM

Yes it is!

For 400 Hz and up, try a 0.06uF cap. That will give you a -3dB point of about 110Hz. That sould block some bass but not hurt you mids.

You could try an octave higher, about 220Hz, which would be a 0.033 (33nF) cap. As long as it doesn't change your crossover slope too much, you should be OK.

MattV · 2nd April 2007, 10:58 PM

Thank you kind sir!

I am building a "simple" two way with Focal 13V's in transmission line cabinets handling the bass and the aforementioned t-amp driving the Fostex drivers. I hope to have it up and running within the next week and will post pictures.

Thanks again,

M Vaughn

2nd April 2007, 08:36 PM	#1
MattV diyAudio Member Join Date: Apr 2006 Location: Arizona	Bandwidth limiting T amp Hello all, I am putting together a system in which I would like to use a T amp to power horn loaded Fostex FE166E's from around 400 HZ up. I have modded the T amp as per Panomaniac's directions and am wondering if it is possible to change the value of the input capacitor to cause the amp to act as a high pass filter? Thanks M Vaughn

2nd April 2007, 09:04 PM	#2
Pano diyAudio Moderator Join Date: Oct 2004 Location: North Carolina Blog Entries: 4	Yes it is! For 400 Hz and up, try a 0.06uF cap. That will give you a -3dB point of about 110Hz. That sould block some bass but not hurt you mids. You could try an octave higher, about 220Hz, which would be a 0.033 (33nF) cap. As long as it doesn't change your crossover slope too much, you should be OK. __________________ Take the Speaker Voltage Test!

Thread Tools	Search this Thread
Show Printable Version Email this Page	Search this Thread: Advanced Search

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
Using less bandwidth and others	DragonMaster	Everything Else	3	13th November 2004 06:23 PM
V/I Limiting	richie00boy	Solid State	17	29th August 2004 03:25 AM
limiting the HF in GC	GregGC	Chip Amps	0	6th January 2004 09:18 PM
Bandwidth limiting the lm3886	Flemming J P	Chip Amps	3	2nd January 2004 10:32 PM

New To Site?	Need Help?
Register to Participate Search Privacy Statement Contact Us	Frequently Asked Questions Did you forget your password? Mark Forums Read


	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

2nd April 2007, 10:58 PM	#3
MattV diyAudio Member Join Date: Apr 2006 Location: Arizona	Thank you kind sir! I am building a "simple" two way with Focal 13V's in transmission line cabinets handling the bass and the aforementioned t-amp driving the Fostex drivers. I hope to have it up and running within the next week and will post pictures. Thanks again, M Vaughn

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)