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18" BPH Turbo style cabs

Printed From: Speakerplans.com
Category: Plans
Forum Name: New Projects Forum
Forum Description: Forum for new speakerplans projects, in memory of Tony Wilkes, 1953 - 2014
URL: https://forum.speakerplans.com/forum_posts.asp?TID=102381
Printed Date: 19 June 2019 at 10:53pm
Software Version: Web Wiz Forums 12.01 - http://www.webwizforums.com


Topic: 18" BPH Turbo style cabs
Posted By: njw
Subject: 18" BPH Turbo style cabs
Date Posted: 12 August 2018 at 5:21pm
 So, since moving away from HD215's a few years ago and going to 18" reflex cabs I've enjoyed having that bottom octave that was completely missing with the HD's but I've missed that punchy 'in your face' sound that the HD's had so I decided to knock up some Turbosound TSE 118 style cabs to go on top of the reflex cabs. 

 Apologies in advance for the quality of some of the photos and lack of detailed photos, I just took the odd photo as I was building. 

 First job, lots of cutting with my diy saw guide; 

 
All panels cut; 



Carcasses assembled and battens added for the access panel;



 Then I fitted the baffles and guides for the curved piece;





 After that I made some cutouts for the speakons; 





 To form the curved piece I fitted a load of battens around the guide/former pieces, then bent a sheet of 6mm ply over the top; 







 Then I fitted the top panels, braces and sound reflector piece; 



 Cutting out the braces; 



 
 Fitting inserts for the access panels and access panel test fitting; 





 I also knocked up some flared mids whilst I was at it Smile



 Front battens added and edges rounded over; 



I did some testing after that, oh, and knocked up some horn boxes (I've stuck a new dust cap on that mid too!)



Filling and sanding (I HATE filling and sanding!); 



 First coat of paint on; 



 And the finished cabs; 







 With the mid and top cabs; 





 The comps are BMS 4550's and by christ they're good! I've never heard a 1" comp capable of going so loud whilst sounding so crisp and clear. 



 I used the cabs in anger for the first time last night and was very happy with the results, I've got the punch back! Big smile



Replies:
Posted By: Dutchman
Date Posted: 12 August 2018 at 9:26pm
That is some nice wood work over there. Bet it sounds good! Maybe you can make the HF cabinet have the same width as the other boxes? Would look lovely :) 

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We need more SPL!


Posted By: RoadRunnersDust
Date Posted: 13 August 2018 at 4:29am
What drivers have you put in the 118s and how low and high are you runnign them?

I assume you've used the 118 plan from hornplans.free.fr?

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Buying myself a TFL-760H... piece by piece >.<


Posted By: catalin
Date Posted: 13 August 2018 at 5:56am
Nice work!!Clap
Mid flare is 12's?



Posted By: Dub Specialist Sound
Date Posted: 13 August 2018 at 1:46pm
Very nice works bro

like the way you have done the panel sections then the curve the ply onto it

keep up the good works


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Musical Roots Reggae Vibration is Life! for music is sound...sound is vibration...vibration is energy... and energy begets life. Therein lies my passion!...MUSIC IS LIFE...


Posted By: levyte357-
Date Posted: 13 August 2018 at 2:22pm
Good job.

If you can spend the time trying diff 18" drivers with diff voice coil sizes and cone weight, LMS eq/xover settings, on the 118s, you would be amazed at the freq resp you can obtain!!!

Did this when I had THL818s, results defied accepted rules for 18".


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"Gentlemen, you can't fight in here, this is the war room!!".


Posted By: njw
Date Posted: 13 August 2018 at 5:14pm
Originally posted by Dutchman Dutchman wrote:

That is some nice wood work over there. Bet it sounds good! Maybe you can make the HF cabinet have the same width as the other boxes? Would look lovely :) 
 

 Thanks, I deliberately made the top box just as big as it needs to be as I don't have a lot of storage space and am also space limited when transporting the cabs. Oh, and yes, they do sound good!. Smile


Posted By: njw
Date Posted: 13 August 2018 at 5:31pm
Originally posted by RoadRunnersDust RoadRunnersDust wrote:

What drivers have you put in the 118s and how low and high are you runnign them?

I assume you've used the 118 plan from hornplans.free.fr?
  

 At the moment the 118's are loaded with Peavey 1801 Black Widows (don't laugh!) as I had a pair sat on the shelf doing nothing, they seem to work surprisingly well! I've got reflex 18's doing 35-100, the 118's running 60-180, the mids 180-1.2k and the tops 1.2k and out. I had to have a play with the delays and phase due to the overlap on the bass cabs but I've always found this seems to give a much fuller, rounder sound than running the two types of bass cabs in separate frequency bands. My initial thoughts were to run the 118's up to 150 as the HD's I've used previously used to get really honky above this but these 118's seem to sound a lot cleaner at higher frequencies so I've run them higher to take some pressure off the mids.

 This is the plan I used but with a few small alterations; 





I can't even remember where I got it from, I've had it stored on my laptop for ages. 


Posted By: njw
Date Posted: 13 August 2018 at 5:35pm
Originally posted by catalin catalin wrote:

Nice work!!Clap
Mid flare is 12's?

  

 Thanks, yes, they're basically a narrowed Altec M17 which I realise is an ancient design but I've built some before and had good results so stuck with what I knew. They're loaded with Fane Studio 12L's and sound lush....

......and bloody loud! LOL


Posted By: njw
Date Posted: 13 August 2018 at 5:40pm
Originally posted by levyte357- levyte357- wrote:

Good job.

If you can spend the time trying diff 18" drivers with diff voice coil sizes and cone weight, LMS eq/xover settings, on the 118s, you would be amazed at the freq resp you can obtain!!!

Did this when I had THL818s, results defied accepted rules for 18".
  

 Thanks, different drivers are definitely on the cards at some point, as said, they're loaded with Peavey 1801's at the moment and whilst they sound surprisingly good in these cabs I have a feeling they're not going to last very long.


Posted By: njw
Date Posted: 13 August 2018 at 5:47pm
Originally posted by Dub Specialist Sound Dub Specialist Sound wrote:

Very nice works bro

like the way you have done the panel sections then the curve the ply onto it

keep up the good works
  

  Thanks, I got the idea to do the curved piece this way after seeing an ASS BS1200 being cut down into two separate cabs, this was how the curved pieces seemed to be done in that cab. Smile   

 Edit; I took some inspiration for the big central brace from that cab too.


Posted By: jammin75
Date Posted: 14 August 2018 at 10:47am
nice Thumbs Up


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feel the vibes !!!   "Who Feels it Knows it"            Strong like Lion              


Posted By: Dub Specialist Sound
Date Posted: 14 August 2018 at 4:50pm
Yes bro hear that ASS cab lol

aslo you added the former too , so the sections get built on to that, very nice and soild build


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Musical Roots Reggae Vibration is Life! for music is sound...sound is vibration...vibration is energy... and energy begets life. Therein lies my passion!...MUSIC IS LIFE...


Posted By: Keen
Date Posted: 15 August 2018 at 7:58am
good heavens, how's about a 20 piece curve! Clap


Posted By: colinmono
Date Posted: 15 August 2018 at 8:29am
very nice!


Posted By: imageoven
Date Posted: 15 August 2018 at 11:45am
That big knot thats fallen out of one of the former battens upsets me Cry

I think you'll struggle to snap it now though!



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Keep pushing on, things are gonna get better.


Posted By: njw
Date Posted: 15 August 2018 at 5:06pm
Thanks all! RE; That knot in the batten, I wasn't too happy with it but literally had no batten left to cut another length so had to use that piece, although it wasn't actually as bad as it looks. Smile


Posted By: BP1Fanatic
Date Posted: 15 August 2018 at 8:41pm
Awesome build! Any thoughts on going completely horn with your rig?


Posted By: njw
Date Posted: 15 August 2018 at 9:03pm
^^To be honest, no. I love the sound of the reflex cabs (JBL 2241 loaded) and as I've got a couple of pairs of 15+1's too it makes the rig very scaleable. 


Posted By: njw
Date Posted: 02 March 2019 at 8:42pm
  So, I've had the cabs out and about over the last few months and have been very happy with the results, had loads of positive comments and gained another regular booking the second time I had them out. I've also aquired another pair of the reflex bins and got hold of another pair of Fane Studio 12L's so knocked up another pair of the flared mids, the problem then was that one pair of the kick cabs wasn't enough so another pair is in the process of being built, I'll get some more pictures up as they progress. Smile


Posted By: njw
Date Posted: 21 March 2019 at 7:54pm
  So, pair number 2 are built, they just need filling, sanding and painting. No pictures unfortunately as I've been working in a dark, cramped garage and getting decent pictures was easier said than done, that said, the pictures would have only shown what's already been posted anyway but I'll definitely get some pictures of of the finished cabs.


Posted By: T-Bone
Date Posted: 22 March 2019 at 3:07am
So about 1 year on this build you say it sounds good the 118, but I have not seen a plot or response. Any other driver to consider like a Faital Pro 18" neodymium magnet? Thanks

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BASS, how low can you go!


Posted By: njw
Date Posted: 25 March 2019 at 5:21pm
Originally posted by T-Bone T-Bone wrote:

So about 1 year on this build you say it sounds good the 118, but I have not seen a plot or response. Any other driver to consider like a Faital Pro 18" neodymium magnet? Thanks
 
 
  Unfortunately I don't have any measuring software so can't post any plots, don't have any modelling software either to see what drivers will work, usually I just use my ears... EmbarrassedSmile
  I don't even know what the drivers are that they're loaded with at the moment, as said previously I had Peavey black widows in pair number one but sold them before they got blown. A mate had the drivers that are in them now sat on the shelf, they look to be an oem of some kind as there are no markings on them but they are cast chassis with a 4" coil and staight cone, they sound better than the Peaveys!


Posted By: T-Bone
Date Posted: 02 April 2019 at 11:03pm
i have 2 x PD 186 version 1 and brand new I was thinking of building B&C 18 subs but I was leaning towards your TSE's 118 but it will be heavy so I was thinking the Faital neons since I get good pricing from Faital. Thanks

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BASS, how low can you go!


Posted By: njw
Date Posted: 06 April 2019 at 5:34pm
Originally posted by T-Bone T-Bone wrote:

i have 2 x PD 186 version 1 and brand new I was thinking of building B&C 18 subs but I was leaning towards your TSE's 118 but it will be heavy so I was thinking the Faital neons since I get good pricing from Faital. Thanks
  

 With the exception of PD1850's (which I don't think would actually fit anyway) PD186 mk1's are probably the perfect driver for this sort of cabinet. I'm not familiar with Faital stuff but if you could find something with a high(ish) EBP, strong motor and strong cone then there's no reason why they shouldn't work well. 
 Oh, and pair number two have been finished for a couple of weeks but due to having laptop issues and a new phone I'm not used to yet I still can't get any pictures up! Confused


Posted By: T-Bone
Date Posted: 06 April 2019 at 6:06pm
Bring it out of the garage and take pictures i plan to build these. ThanksSleepy

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BASS, how low can you go!



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