Go Back   Home > Forums > >
Home Forums Rules Articles diyAudio Store Blogs Gallery Wiki Donations FAQ Calendar Mark Forums Read

I want to get naughty with a pair of full-range speakers!
I want to get naughty with a pair of full-range speakers!
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
Old 6th May 2017, 02:12 AM  
coopman is offline coopman  United States
diyAudio Member
 
Join Date: Mar 2017
Location: Louisiana
I don't know about those Mark....the FR graph has got more humps than a herd of camels.
Which Mark Audio drivers did you order?
 
Old 25th December 2017, 10:34 AM  
matt scarlett is offline matt scarlett
diyAudio Member
 
Join Date: Jul 2014
I got the CHN-70 Mark's. They sounded great in my first t-line build, However i wanted a more prominent bass response, and so I've now got them in a straight t-line enclosures (plural because i went with a conventional 2 speaker stereo set up), and the bass has increased, however it's totally unbalanced in favour of the mid-highs, and the bass is somewhat masked.

All in all my second effort hasn't really worked! I'm wondering if another tapered design would be better. TBH, i never really had that much success with straight t-lines. I always felt tapered was the better way to go! But I love the Mark's. Boy do they get loud considering their relatively low efficiency in comparison to a regular two-way set up. I'd like to do more, but a lack of workshop and resources means i'm having to wait right now.

Click the image to open in full size.

Click the image to open in full size.

Last edited by matt scarlett; 25th December 2017 at 10:44 AM.
 
Old 25th December 2017, 09:44 PM  
chrisb is offline chrisb
diyAudio Member
 
Join Date: Aug 2002
Location: victoria BC
Matt - there at are at least half a dozen well proven designs by DaveD and Scott Lindgren for every model in the Mark Audio line - many of which are far less complex internally than either that youíve posted so far. Iíve even built a couple of them myself.
The best bass Iíve got so far from the CHN70 is with a pair per side in the Castle Microtower- a very simple square cross section bottom vented pipe, with one driver mounted on top angled forward at 10dg. They still will run out of steam at much above 90dB average SPL when driven full range in a larger room. Iím driving them and a pair of 8Ē woofers in a bi-amped set up crossed over at 250 or so with Sure 4 channel amp- putatively rated at 100w- in an open floor plan living /dining room kitchen - probably effectively 600sq ft.
__________________
like my mind, this space intentionally blank
 
Old 27th December 2017, 11:21 AM  
matt scarlett is offline matt scarlett
diyAudio Member
 
Join Date: Jul 2014
I saw and downloaded Scott Lindgren's presentation videos a while back YouTube

For me half the fun is designing and discovering myself for good or for bad. However, thank you for introducing a new design concept to me re; Castle Microtower. Veeeery interesting enclosure design. microTower bipolar ML-TL for CHR-70 or EL70

The other problem is still a lack of resources at the moment, and I'm designing my boxes out of card board at home. Not ideal/perfect but fun nonetheless! I thought of trying a true tubular design. Just limited by what i can do at the moment, but working towards getting a bit of workspace come the spring.
 
Old 27th December 2017, 05:45 PM  
chrisb is offline chrisb
diyAudio Member
 
Join Date: Aug 2002
Location: victoria BC
matt - not such a "new" concept really - this particular family was in homage to what started out as a stupidly big bang for the buck design by EPI in the mid 70's - a time when both Dave & I "cut our teeth" in the retail trade. I'm not sure how many pairs of the original MT1 / 75s Dave might have sold, but CAV Electronics in Victoria went through truckloads of them. If I never hear Doobie Brothers "Listen to the Music" again, these guys are to blame.

Click the image to open in full size.Click the image to open in full size.

I'd dare say that with 40yrs of improvement in FR drivers, and more thorough and easy modelling of enclosure designs thanks to MJ King and others, the Planet10 version is quite a step up - but then, again, how could I not?

As they have great WAF appeal at my place, I've built altogether 3 prs of the "Castle" version - i.e. with second driver mounted firing upwards - two of which have a 10dg forward angle on the top. Those two features were also "inspired" by earlier art - the Castle Howard S3 and Linn DMS for the up firing drivers, and perhaps the EPI M201 for the angled top? - at least that's the one that first comes to mind from my personal experience.
__________________
like my mind, this space intentionally blank
 
Old 28th December 2017, 02:45 PM  
matt scarlett is offline matt scarlett
diyAudio Member
 
Join Date: Jul 2014
I've never been sold on Dipole designs, I guess the cost of having additional drivers to the mix is a touch off-putting. Like my fellow car audio enthusiasts shunning Isobaric designs for subwoofers enclosures, it's deemed an unnecessary expense. I've tried a few such configurations, but have never considered them beyond hearing a demo.

The theory and design if the enclosure is interesting thought, and I'm all up for learning and trying something new. My interest into audio is a journey, never a destination!
 
Old 28th December 2017, 06:18 PM  
planet10 is offline planet10  Canada
frugal-phile(tm)
diyAudio Moderator
 
planet10's Avatar
 
Join Date: Oct 2001
Location: Victoria, BC, NA, Sol III
I want to get naughty with a pair of full-range speakers!
The microTowers are bipoles, not dipoles. Completely different. The bass loading is an end-loaded ML-TL.

If you are designing your TLs without the aid of software modelers then you are much more likely to fail to get something optimal than you are.

dave
__________________
community sites t-linespeakers.org, frugal-horn.com, frugal-phile.com ........ commercial site planet10-HiFi
p10-hifi forum here at diyA
 
Old 30th December 2017, 09:32 PM  
matt scarlett is offline matt scarlett
diyAudio Member
 
Join Date: Jul 2014
Quote:
Originally Posted by planet10 View Post
The microTowers are bipoles, not dipoles. Completely different. The bass loading is an end-loaded ML-TL.

If you are designing your TLs without the aid of software modelers then you are much more likely to fail to get something optimal than you are.

dave
I've used the leonardaudio software, hornresp mainly. But for the most part, i loosely stick to Martin King's formula however i also do a bit of experimenting. I've always struggled with software and graphs. For the most part i felt what the graphs showed didn't translate very well in real terms (previous subwoofer builds).
Sound | surfandsound


However, I've decided to try the speakers on a few films, and they really, really shone. The bass is definitely there! So maybe its a matter of finding the right music/film to really show off what the Marks can do.
 
Old 8th March 2018, 10:22 PM  
matt scarlett is offline matt scarlett
diyAudio Member
 
Join Date: Jul 2014
Currently trying to decide on which design to build

YouTube

YouTube
 
Old 8th March 2018, 10:45 PM  
hm is offline hm  Europe
diyAudio Member
 
hm's Avatar
 
Join Date: Feb 2004
Location: near Hamburg Germany
Default double horn

"What i'm not good at is crossovers or in the case of filtering, i'm not up on notch filters and the like. Any advice, drivers that I might not have considered, taking my music preferences into account?"


look the MiniPosaune for two driver

hm double bass horn - mini trombone

Mini Posaune

may be another solution you can think about.
Attached Images
File Type: jpg kornetthin1web.jpg (32.7 KB, 102 views)
File Type: jpg miniposaune2web.jpg (274.6 KB, 28 views)
File Type: jpg miniposaunealfred1.jpg (12.3 KB, 115 views)
__________________
http://www.hm-moreart.de
 

 

I want to get naughty with a pair of full-range speakers!Hide 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
Scanspeak Discovery 10F/8414G-10 4" Full Range Speakers (pair) greenm01 Swap Meet 1 27th September 2015 09:10 PM
Pair: Phillips AD1255 M7 12" Full-Range Speakers jazzcrisis Swap Meet 1 16th November 2014 06:59 PM
FS: Pair of Radio Shack NOS 40-1354a 5.25" Full Range Speakers - $50 greenmark59 Swap Meet 3 11th January 2011 01:23 AM
Frequency range of the human voice & full range center channel speakers jwmbro Multi-Way 31 20th January 2008 03:07 PM


New To Site? Need Help?

All times are GMT. The time now is 09:20 AM.


Search Engine Optimisation provided by DragonByte SEO (Pro) - vBulletin Mods & Addons Copyright © 2018 DragonByte Technologies Ltd.
Resources saved on this page: MySQL 70.00% / PHP 41.97%
vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2018 DragonByte Technologies Ltd.
Copyright ©1999-2018 diyAudio
Wiki