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

Newbie wants to build a speaker
Newbie wants to build a speaker
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
Thread Tools Search this Thread
Old 11th July 2019, 04:34 PM   #1
Knochen is offline Knochen
diyAudio Member
Join Date: Jul 2019
Smile Newbie wants to build a speaker

Hey there,

I have heard you can save a lot of money and get great quality when you build your own LS. I own a pair of Canton Ergo 620 Speakers which are a nice start, but I cannot wait to upgrade. I thought about investing 2-3k in new speakers, but then I heard about DIY. I like woodworking, but am far from being a pro. Basically I am looking for a nice and easy to build speaker, that is approved and well-tested by other DIY users. I am looking for bookshelf speakers I can use at my desk. My basic criteria:

- Easy shape, maybe just a simple box, no curves or anything fancy
- 3 Drivers. I own an active sub, so base is less of a problem but rather a nice mid and high
- Ribbon Tweeter? Is this the best option nowadays?
- Well tested and approved by the community
- Crossovers pre-built available? I have no idea about electronics...
- Price? IDK, The tech can cost up to 1.5k€ per speaker, but then they should sound like 5k ones, right?
- I am from Mid Europe so I hope I can avoid any US shops with long delivery times...

I found this speaker here which looks kind of like that I imagine, but I am open to any suggestions, so thanks a lot.
  Reply With Quote
Old 11th July 2019, 05:52 PM   #2
Galu is offline Galu  Scotland
diyAudio Member
Join Date: Apr 2018
Welcome to the forum!

Troels Gravesen is a respected designer so I would expect a quality performance from the speakers to which you refer.

All the cabinet and crossover construction details are included in the link so you will be able to gauge for yourself whether or not you are up for the job.

One thing though - aren't these speakers rather large for use at your desk?
  Reply With Quote
Old 11th July 2019, 06:08 PM   #3
denibeni is offline denibeni  Europe
diyAudio Member
Join Date: Nov 2013
The SB 3-way Classic what you linked is a medium sized loudspeaker intented for standmount use.
For desk use, the Bookshelf-3WC is a better choice because of its tuning and the arrangement of the drivers imo..

  Reply With Quote
Old 11th July 2019, 07:01 PM   #4
Knochen is offline Knochen
diyAudio Member
Join Date: Jul 2019
Hi and thanks for the replies. Well, yeah, it is big. Since my desk is in the middle of the room, I have plenty of space behind it so its not really standing "on" the desk. Do you think this would be a big problem for the larger boxes? I checked some other commercial speakers that I found interesting and they are also in this range, like a Nubert or a Harbeth. I would like to go with this size if it is feasible to have enough "power"...
  Reply With Quote
Old 11th July 2019, 10:27 PM   #5
LineSource is offline LineSource  United States
diyAudio Member
LineSource's Avatar
Join Date: Sep 2003
Location: SiliconValley
Knochen... welcome....

You have the right philosophy..... study the recommendations and research... make an informed decision on a design which you can build. The woodshop capability often sets the design direction.

You have the right hardware budget of 1,500E per speaker.

BUT...since your room shape is unique, and your hearing is unique, and since you want exceptional performance, and since you have space behind your desk, BUILDING a deep cabinet which leverages the Kii-Three engineering with side-side woofers is worth the extra education and construction challenges. (No rear cardiod woofers.)

"We live in the midrange." For close-up desktop listening many favor putting the human vocal range(~80-1700) on one exceptional 6" midrange like:
1) Satori MW16P-4 with the natural sound from a Papyrus paper cone
2) -OR - SB_Acoustics SB17NAC35-4 with the detailed sound from a ribbed aluminum cone
3) Satori TW29RDC-4 dimpled 1.1" dome tweeter ideal for crossovers around 1700Hz.
----a T-M crossover ~1700Hz has an 8" wavelength which helps produce a "point-source" image

The SB Acoustics 8" SB23NACS45-8 woofer uses a new ribbed aluminum cone for both extra stiffness and significantly reduced cone breakup. Reviews are all positive.

Crossover Options:
3w-passive TM-WW
2w-passive TM + bi-amp WW (proven passive TM Xover is available)
2w-passive TM + DSP WW

If you can build a wooden Kii-Three shaped cabinet, there is enough knowledge on diyAudio to help you achieve success..
Attached Images
File Type: jpg Kii Three tech.jpg (133.9 KB, 171 views)
File Type: jpg Midrange is key.jpg (165.6 KB, 169 views)
File Type: jpg Crossover Selection.jpg (231.6 KB, 167 views)
  Reply With Quote
Old 11th July 2019, 10:38 PM   #6
Galu is offline Galu  Scotland
diyAudio Member
Join Date: Apr 2018
It appears you have no problem with box size as long as the enclosures don't overwhelm the room. However, a smaller enclosure is more in keeping with your intention to use an active sub. Large enclosures generally produce sufficient bass on their own, so the extra size is a bit of a waste if you intend to use an active sub.
  Reply With Quote
Old 12th July 2019, 07:06 PM   #7
Knochen is offline Knochen
diyAudio Member
Join Date: Jul 2019
@Galu: True, thats a valid point indeed.

@LineSource: Thanks a lot for the suggestion. I researched this a bit and I guess the problem is that this does not only require the speakers, but a quite complex system around, like a active crossover with several amplifiers to adjust each channel separately? If this is the case, I believe this is some high end stuff that is way above my level
  Reply With Quote
Old 17th July 2019, 07:37 PM   #8
Knochen is offline Knochen
diyAudio Member
Join Date: Jul 2019
Has anyone actually build an Atiri? They look interesting!
  Reply With Quote
Old 17th July 2019, 08:20 PM   #9
phivates is offline phivates  United States
diyAudio Member
Join Date: Jan 2011
Location: Willamette Valley
Do they ever! Build it we will listen. I'm not a BR guy but PRs seem to ameliorate the noise factor that I usually hear from ported two-ways.
  Reply With Quote
Old 17th July 2019, 09:22 PM   #10
nigelwright7557 is offline nigelwright7557  United Kingdom
diyAudio Member
nigelwright7557's Avatar
Join Date: Apr 2008
Location: Carlisle, England
Over the last 40 years I have tried very hard to avoid crossovers.
This was quite difficult to do in the past as there were no full range single drivers.
In more recent years quite a few have been produced.
I use a pair of Fane 12-250TC's full rangers in a simple sealed box.
No expensive crossovers so less to go wrong.
Its a little top frequency heavy but is more than good enough for my listening.

I usually cover my cabinets in thin carpet as it is inexpensive and easy to work with.
A basic 18mm plywood box with 2 by 2 inch bracing works well.
PCBCAD51 download or CDROM 2019 version out now https://www.murtonpikesystems.co.uk
  Reply With Quote


Newbie wants to build a speakerHide 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
Newbie... build speaker cab with generic mystery speakers technoid Construction Tips 4 23rd August 2018 09:36 AM
Questions about speaker build from newbie Tim Young Multi-Way 3 13th January 2015 05:46 AM
few questions for a newbie who is trying 1st speaker build please help. w513mfs Parts 3 13th May 2011 02:58 AM
FR Speaker Build--Ignorant Newbie Questions inputs Full Range 9 4th March 2010 01:35 PM
newbie wants to build his first speaker simon909 Multi-Way 3 30th August 2005 07:54 AM

New To Site? Need Help?

All times are GMT. The time now is 10:19 PM.

Search Engine Optimisation provided by DragonByte SEO (Pro) - vBulletin Mods & Addons Copyright © 2019 DragonByte Technologies Ltd.
Resources saved on this page: MySQL 14.29%
vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2019 DragonByte Technologies Ltd.
Copyright ©1999-2019 diyAudio