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

My RefSpeaker
My RefSpeaker
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 20th October 2014, 07:45 PM   #91
Frank512 is offline Frank512  France
diyAudio Member
 
Join Date: May 2014
Quote:
Originally Posted by danny_66 View Post
The source is a DAC END in voltage out with LL1684 (bal->SE) as output stage.
The amplifier is a F5 (Fairchild mosfets, CLC PS, sikorel caps) sounds very good but misses some bass authority, soon to be replaced with a First One amplifier.
Thanx Danny.
Sabre 9018 is apreciated for diyeurs.
Great job for this full diy installation.

Do you have any comparaisons with commercial dac?
  Reply With Quote
Old 6th May 2016, 04:21 AM   #92
gaborbela is online now gaborbela  Canada
diyAudio Member
 
Join Date: Sep 2005
Any progress with your larger cabinet design?
I still did not started my project, I have no access to 4x8Foot Baltic birch or other decent material for the enclosure. I will take some idea from your design. I hope you still happy with your speakers.
Very likely I use bi-amplifying ones to keep the 8ohm impedance. How I said I will use one Alcone woofer from 65L BR (datasheet advise) tuned to F3 31Hz and for the HI-VI I use 60L BR also tuned to the same fervency. On the HI VI I will use a separate amplifier if I can set up the system from one control. All I need a sheet of 4x8 foot Baltic birch. Several distributors sell pieces like 2x4 foot, I would need 7PC of those and half would be a waste because small size material.

Please report us back until these time you put some time into your speakers (fully broken in)
Thank for sharing you excellent project, it is very inspiring.
  Reply With Quote
Old 9th May 2016, 04:06 PM   #93
danny_66 is offline danny_66  Belgium
diyAudio Member
 
danny_66's Avatar
 
Join Date: Jun 2005
Location: Lierde
Hi Gaborbela,

The bigger cabinet is planned for later, I have all the panels cut but still need to assemble them, maybe later this summer.
But I'm not in a hurry because it sounds also very good with the current cabinets

These speakers are still my reference, probably speakers for life if there's no major breakthrough in speaker transducer technology.
When friends drop by for a listening it's still also their reference

Good idea to use separate amplifiers for the woofers, it will give you more options to get good bass adapted to the room and hunt for the dragons in the 50-200Hz area

I'm planning a small update to the crossover:
- an LCR impedance correction to smash down the 55Hz impedance peak of the woofers
- change woofers 2.8mh to 3.1mh and remove the 1.1mH: gives some more energy in the 100-200hz area
- change mid 94uf to 84uf and 6.8mH to 5.6mH to relieve the mid a little more from 50-150hz.
But I still need to test and measure this.

If I would make a new speaker now, I just would make the same.
It sounds very revealing, holographic, goes down to 30hz, a high sensitivity of 93dB that gives access to plenty of amplifiers and didn't cost me 20000€

Regards,
Danny
__________________
My RefSpeaker v2
  Reply With Quote
Old 23rd July 2018, 02:28 PM   #94
olivosunlight is offline olivosunlight  Viet Nam
diyAudio Member
 
Join Date: Dec 2013
Location: HCMC
Hi All,


I really want to build my own speakers as Danny 66 but i have not skill, tools and time .... to do this project. Maybe i will do in the future and now i need a pair of speakers to listen to My ref amp firstly.
Please advice me some speaker models which are suitable for My ref amp. Bookshelf speaker/8ohm is my first choice!


Thank you
  Reply With Quote
Old 16th December 2018, 07:12 PM   #95
danny_66 is offline danny_66  Belgium
diyAudio Member
 
danny_66's Avatar
 
Join Date: Jun 2005
Location: Lierde
Default Refspeaker v2

Five years later and it was time for an update of my RefSpeaker.

The new crossover is finally done, it took a lot of measurements and listening.
The FR is rather flat from 200Hz to 20kHz, below 200Hz it climbs to +3db more output, the bass goes to a low 23Hz.

I'll make a new thread but here are already some pics.

Regards,
Danny
Attached Images
File Type: jpg P81214-172518.jpg (284.4 KB, 1113 views)
File Type: jpg P81214-172528.jpg (254.9 KB, 1084 views)
File Type: jpg P81214-172541.jpg (245.3 KB, 1094 views)
File Type: gif Refspeaker2.gif (228.8 KB, 1088 views)
File Type: jpg IMG_0900s.jpg (208.0 KB, 1096 views)
File Type: jpg P81021-142920s.jpg (214.8 KB, 412 views)
File Type: jpg P81021-142938s.jpg (267.2 KB, 202 views)
File Type: jpg P81021-143050s.jpg (236.8 KB, 278 views)
__________________
My RefSpeaker v2

Last edited by danny_66; 16th December 2018 at 07:26 PM.
  Reply With Quote
Old 19th January 2019, 04:19 PM   #96
jamesblonde is online now jamesblonde  Italy
diyAudio Member
 
Join Date: Jan 2015
Looking good. I'm dreaming of building something very similar, but of course some of the drivers will no longer be available by the time I get around to it
  Reply With Quote
Old 7th April 2019, 02:11 AM   #97
Stewart77 is offline Stewart77  United States
diyAudio Member
 
Join Date: Feb 2018
Location: Wichita, KS USA
Job well done! Do they sound as good as they look?
  Reply With Quote
Old 19th April 2019, 06:34 PM   #98
danny_66 is offline danny_66  Belgium
diyAudio Member
 
danny_66's Avatar
 
Join Date: Jun 2005
Location: Lierde
Yep, even more so with the reworked cabinets.
They easily put the performers in my living room
__________________
My RefSpeaker v2
  Reply With Quote
Old 30th May 2019, 03:30 PM   #99
danny_66 is offline danny_66  Belgium
diyAudio Member
 
danny_66's Avatar
 
Join Date: Jun 2005
Location: Lierde
Version 2 is as good as finished, I just need to put the final mid/high crossover in the cabinet.
Bass cabinets and its crossover are already done.

Mid/high sounds good and measures good, finally
Phase between mid and high is good, on the picture I measured in room at 1.10m distance and height between mid and ribbon,
it shows four measurements: mid, high, mid+high, mid+high reversed polarity

At the end of the fine tuning I was playing with 0.5dbs more or less to get the voicing correct while playing test songs (100+).
It's amazing and disturbing how sometimes 0.5db at a certain freq range can make a difference.
Attached Images
File Type: jpg P90530-150005s.jpg (242.3 KB, 456 views)
File Type: jpg P90530-150021s.jpg (241.6 KB, 307 views)
File Type: jpg P90530-150044s.jpg (181.2 KB, 221 views)
File Type: gif MidTweeterPhase2.gif (60.7 KB, 286 views)
__________________
My RefSpeaker v2

Last edited by danny_66; 30th May 2019 at 03:38 PM.
  Reply With Quote
Old 5th June 2019, 06:50 AM   #100
jonsnotmad is offline jonsnotmad
diyAudio Member
 
Join Date: Jul 2018
fantastic looking pair of speakers
  Reply With Quote

Reply


My RefSpeakerHide 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


New To Site? Need Help?

All times are GMT. The time now is 05:09 PM.


Search Engine Optimisation provided by DragonByte SEO (Pro) - vBulletin Mods & Addons Copyright © 2020 DragonByte Technologies Ltd.
Resources saved on this page: MySQL 15.79%
vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2020 DragonByte Technologies Ltd.
Copyright ©1999-2020 diyAudio
Wiki