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

Multi-Way Conventional loudspeakers with crossovers

3 Way Crossover - a first attempt
3 Way Crossover - a first attempt
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 16th February 2018, 05:14 AM   #61
AllenB is offline AllenB  Australia
diyAudio Member
 
Join Date: Oct 2008
Quote:
Originally Posted by gfiandy View Post
On reading this, some makes little sense. I have built solid state amps without feedback and solid state amps with output transformers.

Surely the question ought to be whether an amp should have zero output impedance and what to expect if it doesn't.

I see no technical reason that speaker impedance variations must be the responsibility of an amp.
  Reply With Quote
Old 16th February 2018, 05:26 AM   #62
cal16v is offline cal16v  Australia
diyAudio Member
 
Join Date: Jan 2018
Hi Allen,

With regard to the impedance peak and this driver, my earlier searching around suggested it was prime for use with tube amps. If this is indeed the case then the task is to end up with a reasonably flat system impedance at hopefully something more than 3 ohms that I can then try with either of the 4 or 8 taps.

So am I correct thinking this goal is achieved with a suitably designed xo?
  Reply With Quote
Old 16th February 2018, 05:29 AM   #63
cal16v is offline cal16v  Australia
diyAudio Member
 
Join Date: Jan 2018
Quote:
Originally Posted by AllenB View Post
On reading this, some makes little sense. I have built solid state amps without feedback and solid state amps with output transformers.

Surely the question ought to be whether an amp should have zero output impedance and what to expect if it doesn't.

I see no technical reason that speaker impedance variations must be the responsibility of an amp.
I found that link useful to explain the basic differences between a tube v ss amps. For my purposes I found this link more applicable to what I'm trying to achieve...

DHTRob - Tubefriendly loudspeakers?
  Reply With Quote
Old 16th February 2018, 07:29 AM   #64
AllenB is offline AllenB  Australia
diyAudio Member
 
Join Date: Oct 2008
Quote:
Originally Posted by cal16v View Post
With regard to the impedance peak and this driver, my earlier searching around suggested it was prime for use with tube amps.
From what I can imagine for making this claim, either it has gentle impedance variations or would prefer higher output impedance. I feel more comfortable just conjugating and being done with it.

There are other reasons for the 'tube friendly' label but I don't allow any of them to be a factor.

Quote:
If this is indeed the case then the task is to end up with a reasonably flat system impedance at hopefully something more than 3 ohms that I can then try with either of the 4 or 8 taps.

So am I correct thinking this goal is achieved with a suitably designed xo?
Begin this with your simulator starting with a series RLC across the amp terminals.

Last edited by AllenB; 16th February 2018 at 07:38 AM.
  Reply With Quote
Old 16th February 2018, 07:46 AM   #65
cal16v is offline cal16v  Australia
diyAudio Member
 
Join Date: Jan 2018
Quote:
Originally Posted by AllenB View Post
...Begin this with your simulator starting with a series RLC across the amp terminals.
Just finished exactly this... a series notch and zobel. See attached.

Regarding the article I cannot add anything about what driver characteristics do or do not suit tube amplification. The only thing that caught my attention was the real world examples of drivers and their impedance / capacitance or inductance relationship.

cheers
Attached Images
File Type: jpg LCR + zobel.jpg (49.2 KB, 25 views)
File Type: jpg impedance.jpg (201.3 KB, 25 views)
  Reply With Quote
Old 16th February 2018, 08:12 AM   #66
AllenB is offline AllenB  Australia
diyAudio Member
 
Join Date: Oct 2008
Quote:
Originally Posted by cal16v View Post
Regarding the article I cannot add anything about what driver characteristics do or do not suit tube amplification.
I don't do anything differently. I make my speaker choices without considering the amps and I choose my amp types without considering the speakers.

This doesn't mean I'm not careful to make the amp capable of driving the speaker, and making the speaker a good load to drive.. regardless of the type.

This isn't so easy when you have a pre built amp. What do you know about it?
  Reply With Quote

Reply


3 Way Crossover - a first attemptHide 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
My 2:nd ESL-attempt SM7UYJ Planars & Exotics 165 16th August 2012 02:58 PM
My first amp attempt... SMOTH Solid State 3 4th February 2012 06:52 PM
PCD crossover attempt enigmaticEntity. Multi-Way 3 13th November 2009 11:32 AM
First Crossover attempt LightwaveDude Multi-Way 9 11th April 2008 07:37 PM
Horrible crossover attempt. Netlist Multi-Way 12 2nd October 2004 08:52 PM


New To Site? Need Help?

All times are GMT. The time now is 02:42 AM.


Search Engine Optimisation provided by DragonByte SEO (Pro) - vBulletin Mods & Addons Copyright © 2018 DragonByte Technologies Ltd.
Resources saved on this page: MySQL 15.00%
vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2018 DragonByte Technologies Ltd.
Copyright ©1999-2018 diyAudio
Wiki