Go Back   Home > Forums > >

Multi-Way Conventional loudspeakers with crossovers

Monacor files
Monacor files
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
Old 8th December 2017, 05:55 PM   #11
Lojzek is offline Lojzek  Croatia
diyAudio Member
 
Lojzek's Avatar
 
Join Date: Feb 2012
Location: Croatia
Sweet looking enclosures of Mario's!

Steve, in regard to tracing software just google the web site name mentioned in post #4 and get yout copy of it. It is easy to use and you don't have to bother with 500 clicks as with SPL Tools to create the data samples. In short, you choose the graph to trace, trim it to right size in "Paint", load it to FPGraphTracer, set scale to lin or log, mark the frequency and spl levels using magnifying tool to align cursor with the actual lines representing and then test visually before you save it as frd or zma.
  Reply With Quote
Old 9th December 2017, 10:29 AM   #12
Mario Pankov is offline Mario Pankov  Europe
diyAudio Member
 
Join Date: Aug 2007
Location: Sofia
Monacor files
Quote:
Originally Posted by system7 View Post
But really, without the filter, you are being coy.
True but not much time these days. Here are some of the measurements but I wll post the real project sometime in January (I hope time will allow) with full set of measurements and data. But for now, at least this might do something in between. Minimum impedance is 4R44 at 183Hz with phase at 9.03 degrees. Enclosure is around 13l effective volume with port tunning at 48Hz. The overall tunning is set for corner placement as there they went and to be used with a subwoofer (I`ll post a photo of it too). The measurements include gated and a 12db smoothed in room response (my room, not the recipients) about 1.4m away from any walls. Crossover (measured) is at around 2.05Khz LR2 with both drivers connected with normal polarity. Measured sensitivity at 2.83V was 92.1db +/- 0.3db accuracy in the 100Hz-14khz band. The dip at 1.4Khz I suspect as suspension related as it is present on Monacor`s own measurements. The carbon-fibre cone has a light resonanse but is really annoying on-axis hence the additional network to address it.

They can actually do without a sub but if in a corner, otherwise sound a bit thin. The guy wanted them asap but will hand me over one to complete the off-axis and impedance measurements in a more digestable format, I hope at the beginning of next year. I don`t like to comment on sound as this is very subjective but the owner likes them.
Attached Images
File Type: jpg Simulated crossover.jpg (238.5 KB, 142 views)
File Type: jpg Simulated crossover reverse polarity.jpg (238.1 KB, 142 views)
File Type: jpg Gated response.jpg (357.1 KB, 141 views)
File Type: jpg Reverse phase on tweeter.jpg (375.5 KB, 133 views)
File Type: jpg Response 12db smoothing.jpg (358.2 KB, 128 views)
File Type: jpg Xover_schematics.jpg (116.7 KB, 61 views)

Last edited by Mario Pankov; 9th December 2017 at 10:35 AM.
  Reply With Quote
Old 9th December 2017, 10:51 AM   #13
Mario Pankov is offline Mario Pankov  Europe
diyAudio Member
 
Join Date: Aug 2007
Location: Sofia
Monacor files
Here`s the sub, Monacor SPH-300CTC in a heavily braced 52l ported enclosure with downfiring ports (3 of them) tuned to 26Hz. It is driven by a Monacor SAM-300D (rebranded chinese amp, Madisound sells them under the Yung brand). Finish on these was a challenge as roundover radius (purely cosmetic in this case) is 12.7mm only but I found a way to bend veneer without cracking it by putting a few strips of paper tape on the outer side where the bend is. The whole cinema is finished in venge veneer and has a few coats of ICA polyurethane coating, a professional did it, was not me.

But the whole point was really why Monacor units are not that popular with the DIY market, outside of Germany, I attribute it to poor distribution mostly, their loudspeaker units are pretty competitive, the SPH series work very well in really small enclosures and some of the speaker units have parameters ideal for cost efficient sealed or transmission line designs, or even band pass enclosures in cars. Companies like Monacor and Visaton are also getting lots of pressure from the newer Asia based designers, such as SB Acoustics, Wavecor, Dayton and even Fountek.
Attached Images
File Type: jpg Mjolnir subwoofer.jpg (749.1 KB, 76 views)
  Reply With Quote
Old 9th December 2017, 12:16 PM   #14
Mario Pankov is offline Mario Pankov  Europe
diyAudio Member
 
Join Date: Aug 2007
Location: Sofia
Monacor files
Mid-woofer, Seas, Ciare, Ohm

These have some measurements and have been used as a source of FRD and ZMA files. I see the 175HQ there, perhaps it would help you source what you need?
  Reply to this post

Reply


Monacor filesHide this!Advertise here!
Thread Tools

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
Getting PCBs printed from DXF files (or Ultiboard files) MitchMev Software Tools 6 28th June 2016 09:45 PM
monacor goran14 Multi-Way 2 20th April 2005 02:12 PM
Monacor Vedo Multi-Way 2 10th February 2005 09:31 PM
Monacor mik Multi-Way 0 16th January 2002 03:51 PM


New To Site? Need Help?

All times are GMT. The time now is 02:28 PM.


Search Engine Optimisation provided by DragonByte SEO (Pro) - vBulletin Mods & Addons Copyright © 2021 DragonByte Technologies Ltd.
Resources saved on this page: MySQL 15.00%
vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2021 DragonByte Technologies Ltd.
Copyright ©1999-2021 diyAudio
Wiki