Small desktop TQWT speaker with TB W3-871SC

Flops · 25th November 2011, 08:26 PM

Hello diyaudio community,

I had an idea for a small desktop speaker which should work using the TQWT principle:

What do you think, will it sound ok?

Technical stuff:
The pipe is nearly 70cm long so it should amplify 122 Hz. I want to get a little bit of bass out of it but I have no idea how I can make the pipe longer without over complicating things.
The slot is 3x100x30mm, is this alright?
I plan using the TangBand W3-871SC.
Is it possible to simulate the enclosure before building it (I'm on a mac)?

Thanks in advance
~Flo

planet10 · 26th November 2011, 12:33 AM

To simulate it you'll need the MJK worksheets. The MathCAD to run them only works in Windoz. I have yet to see if it will run in CrossOver Mac, but if i have to i do own WinXP and VirtualBox is free (althou Parallels is a lot slicker).

dave

Flops · 26th November 2011, 06:29 AM

Thanks, I will simulate it later and post the results (I can probably borrow my brother's latptop and use windows nonetheless).

~Flo

Flops · 26th November 2011, 09:47 AM

Is it possible to use Akabak or ABEC2 to simulate my speaker design? I don't want to spend money on MathCAD, yet.

Flops · 27th November 2011, 04:21 PM

I just did my first simulation using AkAbak, here is what I did:

Can someone check if I did everything right? Here are the TSP of the TangBand: http://www.tb-speaker.com/detail/1208_03/w3-871sc.htm

Shall I add more parameters?

Thanks in advance
~Flo

25th November 2011, 08:26 PM	#1
Flops diyAudio Member Join Date: May 2011	Small desktop TQWT speaker with TB W3-871SC Hello diyaudio community, I had an idea for a small desktop speaker which should work using the TQWT principle: What do you think, will it sound ok? Technical stuff: The pipe is nearly 70cm long so it should amplify 122 Hz. I want to get a little bit of bass out of it but I have no idea how I can make the pipe longer without over complicating things. The slot is 3x100x30mm, is this alright? I plan using the TangBand W3-871SC. Is it possible to simulate the enclosure before building it (I'm on a mac)? Thanks in advance ~Flo

26th November 2011, 12:33 AM	#2
planet10 frugal-phile(tm) diyAudio Moderator Join Date: Oct 2001 Location: Victoria, BC, NA, Sol III Blog Entries: 4	To simulate it you'll need the MJK worksheets. The MathCAD to run them only works in Windoz. I have yet to see if it will run in CrossOver Mac, but if i have to i do own WinXP and VirtualBox is free (althou Parallels is a lot slicker). dave __________________ community sites t-linespeakers.org, frugal-horn.com ........ commercial site planet10-HiFi p10-hifi forum here at diyA

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26th November 2011, 06:29 AM	#3
Flops diyAudio Member Join Date: May 2011	Thanks, I will simulate it later and post the results (I can probably borrow my brother's latptop and use windows nonetheless). ~Flo

26th November 2011, 09:47 AM	#4
Flops diyAudio Member Join Date: May 2011	Is it possible to use Akabak or ABEC2 to simulate my speaker design? I don't want to spend money on MathCAD, yet.

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