a sub crossover idea - diyAudio
Go Back   Home > Forums > Amplifiers > Tubes / Valves
Home Forums Rules Articles diyAudio Store Gallery Wiki Blogs Register Donations FAQ Calendar Search Today's Posts Mark Forums Read

Tubes / Valves All about our sweet vacuum tubes :) Threads about Musical Instrument Amps of all kinds should be in the Instruments & Amps forum

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
Reply
 
Thread Tools Search this Thread
Old 4th March 2016, 03:27 AM   #1
diyAudio Member
 
Join Date: Jun 2004
Location: Indiana
Default a sub crossover idea

final slope 24dB 1st order boost in the pass band to counter driver roll off.

Click the image to open in full size.

Click the image to open in full size.

I wonder how much of the phase and slope change above 1.2kHz is real and how much it matters given we are down well over 100dB at that point. Green trace is input Red trace is output.
Attached Images
File Type: png 24dBschem.png (88.5 KB, 193 views)
File Type: jpg 24dBoutput.jpg (117.5 KB, 186 views)
__________________
If We The People refuse to hear the truth we will be ruled by liars.
  Reply With Quote
Old 4th March 2016, 01:30 PM   #2
diyAudio Member
 
Join Date: Jun 2004
Location: Indiana
New and improved? A bit more gain direct coupling and slight adjustment of first stage f3.

Click the image to open in full size.

Click the image to open in full size.

Green=Input
Red=1st Stage Output
Blue=Output
Attached Images
File Type: png 24dBschemDC.png (85.9 KB, 74 views)
File Type: jpg 24dBoutputDC.jpg (143.0 KB, 74 views)
__________________
If We The People refuse to hear the truth we will be ruled by liars.
  Reply With Quote
Old 4th March 2016, 10:38 PM   #3
diyAudio Member
 
JonSnell Electronic's Avatar
 
Join Date: Dec 2012
Location: The Jurassic Coast, England. GB
Send a message via Skype™ to JonSnell Electronic
Where is your Grid bias on the first stage?
__________________
Support for Flying Mole Class D, PMC DS-001 (Hypex),Valve Equipment and designs both new and old. www.jonsnell.co.uk
  Reply With Quote
Old 4th March 2016, 11:38 PM   #4
diyAudio Member
 
Join Date: Jun 2004
Location: Indiana
Missed it on those drawings (posted wrong ones). When I get back on the laptop I will post the right one which has the grid resistor. [Insert embarassed grin].
__________________
If We The People refuse to hear the truth we will be ruled by liars.
  Reply With Quote

Reply


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
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
complex crossover idea ubza1234 Multi-Way 8 9th September 2013 09:49 PM
Idea for "Balanced" Passive crossover- opinions? clm811 Multi-Way 10 26th March 2010 09:27 AM
An idea! Fully balanced TDA1541A DAC idea. Please comment! cartman Digital Source 8 17th July 2007 09:18 AM
Crossover modeling software idea BAM Multi-Way 0 6th September 2004 10:59 PM
Notch filter for crossover-good idea? kelticwizard Multi-Way 2 21st September 2002 05:03 AM


New To Site? Need Help?

All times are GMT. The time now is 02:24 PM.


vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2016 DragonByte Technologies Ltd.
Copyright 1999-2016 diyAudio

Content Relevant URLs by vBSEO 3.3.2
Wiki