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   Home » Horn-Loaded Speakers» Macondo copying: Horns troubleshooting (25 posts, 2 pages)
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  »  New  Problems with horns: upper bass ..  Must it be about loading?...  Horn-Loaded Speakers Forum     109  955884  03-25-2005
  »  New  Romy's Horns..  RE: Still Romy's horns...  Horn-Loaded Speakers Forum     3  50956  04-14-2005
  »  New  Loudspeakers and headphones..  *slap*...  Audio Discussions  Forum     26  199902  06-30-2005
  »  New  Practical Guide for Back Chambers Tuning...  Back chamber’s cost-benefit....  Horn-Loaded Speakers Forum     5  58178  10-21-2006
  »  New  Building a new music room..  Here is my take for a room that I would like to deal wi...  Playback Listening  Forum     20  115330  10-16-2007
  »  New  MacondoLite..  The Count Alessandro di Cagliostro’s methods....  Horn-Loaded Speakers Forum     18  143307  08-15-2009
08-31-2007 Post does not mapped to Knowledge Tree
Ronnie
Stockholm
Posts 81
Joined on 06-30-2005

Post #: 21
Post ID: 5189
Reply to: 5162
Piano success and passive x-over
I'm giving myself high fives today for nearly solving the broken piano sound in the room. :-)
I'm not sure what fixed it, but I believe it to be a shelf half filled with records + two sofas and a carpet.

There is room for improvement but it is a giant leap ahead. Goldberg Variations are more enjoyable than painful to listen to!!!


The next big problem with sound here I think is a difference in sound level between upper bass and MF/HF.
Upper bass seems louder (and ought to be). Would you help this electronics-handicapped guy to pad down the upper bass horn with for example 6dB? Do I just put a resistor before the coil?

Here's what the passive crossover looks like now:
hornpassivexover.jpg

The MF/HF horn is loaded with a Fostex (8 ohm), and upper bass with Fane Studio 8M (16 ohm)
08-31-2007 Post does not mapped to Knowledge Tree
Romy the Cat


Boston, MA
Posts 9,713
Joined on 05-27-2004

Post #: 22
Post ID: 5193
Reply to: 5189
Any further experiments shell be stopped
 Ronnie wrote:
The next big problem with sound here I think is a difference in sound level between upper bass and MF/HF.
Upper bass seems louder (and ought to be). Would you help this electronics-handicapped guy to pad down the upper bass horn with for example 6dB? Do I just put a resistor before the coil?
Ronnie, any further conversations and experiments shell be stopped by you at this point until you found yourself you get yourself a simple RTA and phase tester. No, you do not need the any TEF analyzers or any tools of Time Delay Spectroscopy 0 the Macondo do not need it. However a rudimental RTA and polarity testers are the tools without which no farther progress is possible in context of the Macondo topology.


"I wish I could score everything for horns." - Richard Wagner. "Our writing equipment takes part in the forming of our thoughts." - Friedrich Nietzsche
09-01-2007 Post does not mapped to Knowledge Tree
Ronnie
Stockholm
Posts 81
Joined on 06-30-2005

Post #: 23
Post ID: 5194
Reply to: 5193
OK! Horn break
I will have to get me a DAYTIME JOB again, so I can afford such things!

Looking forward to playing with other things Audio for a while, particularly Vinyl.
The sound is very pleasant.
09-01-2007 Post does not mapped to Knowledge Tree
Romy the Cat


Boston, MA
Posts 9,713
Joined on 05-27-2004

Post #: 24
Post ID: 5195
Reply to: 5194
A phase tester and RTA analyzer.

Ronnie,

There are no needs to be funny about it and there are no needs to get a daytime job.

A phase tester and RTA analyzer are absolutely obligatory thighs to employ and they are inexpensive and very simple to use. A simplest phase tester you might get for $50 and it will be absolutely enough and you will be using it to the rest of your life.

With RTA you would not need anything fancy. There are a number of computer based RTA and some of them are extremely good and very cheap. For instance you my try the John Murphy’s TrueRTA.

http://www.trueaudio.com/

It is very simple analyzer, cost juts $100 but it might be VERY powerful and indicative tool if used properly. The TrueRTA is 10Hz to 48KHzm, 1/24 octave.  You would need a microphone to go with it and nowadays you might get for sub $50 a very-very good instrumental microphone. Interesting that with tools like TrueRTA you might not need any good microphones or good sound card - you might calibrate them off.

Rgs, Romy the Cat


"I wish I could score everything for horns." - Richard Wagner. "Our writing equipment takes part in the forming of our thoughts." - Friedrich Nietzsche
09-01-2007 Post does not mapped to Knowledge Tree
Ronnie
Stockholm
Posts 81
Joined on 06-30-2005

Post #: 25
Post ID: 5201
Reply to: 5195
True RTA and Windows trouble
Yes, I've been meaning to aquire such things for quite a while now.
The biggest obstacle is that I think I need to format the drive and do a clean install of XP (or Vista).

I did some audiophile trick with the system and since then XP doesn't acknowledge any "Primary Audio Device". I don't remember what I did, but know I've tried a lot of things to fix it.

I can't use the soundcard input (for the microphone), and I can only output sound using a few audio programs such as Winamp, specifically choosing "AC'97" instead of "Primary Sound Driver".
I tried reinstalling Win XP, but it didn't help.
If you get a "Try this!" idea, then it's very welcome!

Just thinking out loud:
Mic, Mic stand, Mic cables, Mic preamp, file backup, install XP (get a new version?), True RTA, Phase Tester.
Page 2 of 2 (25 items) Select Pages:  « 1 2
   Target    Threads for related reading   Most recent post in related threads   Forum  Replies   Views   Started 
  »  New  Problems with horns: upper bass ..  Must it be about loading?...  Horn-Loaded Speakers Forum     109  955884  03-25-2005
  »  New  Romy's Horns..  RE: Still Romy's horns...  Horn-Loaded Speakers Forum     3  50956  04-14-2005
  »  New  Loudspeakers and headphones..  *slap*...  Audio Discussions  Forum     26  199902  06-30-2005
  »  New  Practical Guide for Back Chambers Tuning...  Back chamber’s cost-benefit....  Horn-Loaded Speakers Forum     5  58178  10-21-2006
  »  New  Building a new music room..  Here is my take for a room that I would like to deal wi...  Playback Listening  Forum     20  115330  10-16-2007
  »  New  MacondoLite..  The Count Alessandro di Cagliostro’s methods....  Horn-Loaded Speakers Forum     18  143307  08-15-2009
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