Speakerplans.com Homepage
Forum Home Forum Home > Plans > New Projects Forum
  New Posts New Posts RSS Feed - New single BR
  FAQ FAQ  Forum Search   Events   Register Register  Login Login

New single BR

 Post Reply Post Reply Page  123 7>
Author
Message Reverse Sort Order
smitske96 View Drop Down
Young Croc
Young Croc


Joined: 16 February 2016
Location: The Netherlands
Status: Offline
Points: 515
Post Options Post Options   Thanks (0) Thanks(0)   Quote smitske96 Quote  Post ReplyReply Direct Link To This Post Topic: New single BR
    Posted: 04 June 2019 at 9:52am
Yes but using the 21DS115 in the type-C the width of the cabinet would become 81 cm.
Using the 21SW152 the width of 61 cm can be used due to the lower Le.

Until now I still don't know which driver to use. price difference is about 100 euros here.
Back to Top
FrederikMA View Drop Down
Registered User
Registered User


Joined: 19 July 2017
Location: Copenhagen
Status: Offline
Points: 76
Post Options Post Options   Thanks (0) Thanks(0)   Quote FrederikMA Quote  Post ReplyReply Direct Link To This Post Posted: 04 June 2019 at 6:56am
Those components are some powerful players smitske96. Does anyone have any background info on paraflex enclosures? When searching, paraflex seem to be the name of whatever hybrid of series/parallel BP6, transmission-line, tapped horn, planar wave or reflex one can come up with.

About drivers, if a Paraflex is anything like series BP6, low Qes is critical to low-frequency performance. In simulations I gained approximately 10Hz of extension (40Hz-30Hz) going from 21SW115 (Qes of 0,39) to 21SD115 (Qes of 0,24), in a 300L series BP6. Try to sim it if you haven't.
Back to Top
smitske96 View Drop Down
Young Croc
Young Croc


Joined: 16 February 2016
Location: The Netherlands
Status: Offline
Points: 515
Post Options Post Options   Thanks (0) Thanks(0)   Quote smitske96 Quote  Post ReplyReply Direct Link To This Post Posted: 03 June 2019 at 10:12am
I've tested the cab 2 days ago, results where encouraging but it needed more bracing in the mouth. For me they go low enough, I used 24dB BW @30Hz, HPF and 24dB LR @80Hz NOTE: those filters where just figured on the go, so probably not optimal. For amplification I used one channel of a CTS-3000.

If possible I'm going to add some bracing in the next coming weeks and test again.
Also using the 21SW152 for the cab is on my mind.


Back to Top
Maze View Drop Down
Registered User
Registered User


Joined: 13 April 2014
Location: China
Status: Offline
Points: 105
Post Options Post Options   Thanks (0) Thanks(0)   Quote Maze Quote  Post ReplyReply Direct Link To This Post Posted: 03 June 2019 at 1:02am
Originally posted by smitske96 smitske96 wrote:

Instead if another TH-18, I gave it a try to build a paraflex design.

Test cab (not finished):
Probably a bit light on bracing, but I'll see how it performs. Also the diagonal pieces will be added in the mouth.

Powersoft module:

If they pass the test, I'll build two out of ply, and add wheels and some small handles.


How did it go with this one? (the paraflex)

I'm might look to built these over the summer. I haven't heard them though, so I'd like to hear what you think of them.
Back to Top
smitske96 View Drop Down
Young Croc
Young Croc


Joined: 16 February 2016
Location: The Netherlands
Status: Offline
Points: 515
Post Options Post Options   Thanks (0) Thanks(0)   Quote smitske96 Quote  Post ReplyReply Direct Link To This Post Posted: 27 May 2019 at 6:20pm
Instead if another TH-18, I gave it a try to build a paraflex design.

Test cab (not finished):
Probably a bit light on bracing, but I'll see how it performs. Also the diagonal pieces will be added in the mouth.

Powersoft module:

If they pass the test, I'll build two out of ply, and add wheels and some small handles.
Back to Top
smitske96 View Drop Down
Young Croc
Young Croc


Joined: 16 February 2016
Location: The Netherlands
Status: Offline
Points: 515
Post Options Post Options   Thanks (0) Thanks(0)   Quote smitske96 Quote  Post ReplyReply Direct Link To This Post Posted: 19 May 2019 at 2:38pm
Update: I've now got two Powersoft 3004PFC4 amps available. They would be ideal with 1X TH-18 and 1X top per side, running the TH-18 on two bridged channels. Other option would be to still go for 4X BR cabs, but the amp module would only give 1500 Watt per sub, which gives me no headroom Unhappy
Back to Top
smitske96 View Drop Down
Young Croc
Young Croc


Joined: 16 February 2016
Location: The Netherlands
Status: Offline
Points: 515
Post Options Post Options   Thanks (0) Thanks(0)   Quote smitske96 Quote  Post ReplyReply Direct Link To This Post Posted: 12 April 2019 at 1:49pm
The only time I had such a good deal whas on my old PL380 , 450 euros Smile
Back to Top
IvCu View Drop Down
Registered User
Registered User


Joined: 16 August 2014
Location: Netherlands
Status: Offline
Points: 24
Post Options Post Options   Thanks (0) Thanks(0)   Quote IvCu Quote  Post ReplyReply Direct Link To This Post Posted: 12 April 2019 at 11:50am
haha apparently too good deal to be true, busted!! 
Back to Top
smitske96 View Drop Down
Young Croc
Young Croc


Joined: 16 February 2016
Location: The Netherlands
Status: Offline
Points: 515
Post Options Post Options   Thanks (0) Thanks(0)   Quote smitske96 Quote  Post ReplyReply Direct Link To This Post Posted: 12 April 2019 at 8:17am
I saw that one, but those fotos are from another ebay lot (which alrrady ended for a more normal price). So I don't trust it LOL
Back to Top
IvCu View Drop Down
Registered User
Registered User


Joined: 16 August 2014
Location: Netherlands
Status: Offline
Points: 24
Post Options Post Options   Thanks (0) Thanks(0)   Quote IvCu Quote  Post ReplyReply Direct Link To This Post Posted: 12 April 2019 at 1:44am
Originally posted by smitske96 smitske96 wrote:

The Br cab design is almost finished but, I'm also going to build two TH-18's.
They will look like the original TH-118 with only two handles and the two wheels, that way it's easy enough to roll them around for one person. 

So two BR cabs loaded with 18SW100-4, two TH-18 with 18SW115-4.
Reason for going for 4 ohm drivers would be that I've got some more amplifier choice, atm I'm looking at two K3 or one X4. 

Also grills:

They have two sparing for cardioid arrangment, not going to use them, but install the speakons just for the looks.


If you are looking at X4 that is on markplaats now - it seems as a pretty nice deal! Smile

Back to Top
Crashpc View Drop Down
Registered User
Registered User


Joined: 26 February 2008
Location: Czech Republic
Status: Offline
Points: 433
Post Options Post Options   Thanks (0) Thanks(0)   Quote Crashpc Quote  Post ReplyReply Direct Link To This Post Posted: 11 April 2019 at 8:20pm
The project looks interesting. Let us now about the results!😍
Nikon and Canon people should not be married to each other. Why did you let this happen?
Back to Top
smitske96 View Drop Down
Young Croc
Young Croc


Joined: 16 February 2016
Location: The Netherlands
Status: Offline
Points: 515
Post Options Post Options   Thanks (0) Thanks(0)   Quote smitske96 Quote  Post ReplyReply Direct Link To This Post Posted: 11 April 2019 at 8:04pm
The Br cab design is almost finished but, I'm also going to build two TH-18's.
They will look like the original TH-118 with only two handles and the two wheels, that way it's easy enough to roll them around for one person. 

So two BR cabs loaded with 18SW100-4, two TH-18 with 18SW115-4.
Reason for going for 4 ohm drivers would be that I've got some more amplifier choice, atm I'm looking at two K3 or one X4. 

Also grills:

They have two sparing for cardioid arrangment, not going to use them, but install the speakons just for the looks.


Edited by smitske96 - 11 April 2019 at 8:09pm
Back to Top
 Post Reply Post Reply Page  123 7>
  Share Topic   

Forum Jump Forum Permissions View Drop Down

Forum Software by Web Wiz Forums® version 12.03
Copyright ©2001-2019 Web Wiz Ltd.

This page was generated in 0.078 seconds.