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MrKTrout 22nd October 2012 06:16 AM

Full Range Merrill Driver in TriTrix Cabinet
Here is a photo of my latest speaker project using the Merrill DCA5.5 in the TriTrix cabinet from Parts Express. I was trying to design a new cabinet when I ran across the dimensions of the TriTrix, and discovered the box dimensions were a great fit for the DCA5.5 Thiel characteristics. A local cabinet shop had some leftover bamboo veneer from another job, so I got a great looking set of cabinets for my DCA5.5's. As for the sound, they are AMAZING! The drivers don't even have 10 hours on them and they already sound sweet. I can't wait till the drivers are fully broken in.

philharmonie 28th February 2013 04:40 AM


Can you give me the plan of your cabinet.

Thank you.

Best regards.


fastbike1 28th February 2013 01:32 PM

search for tritrix at Parts Express: the #1 source for audio, video & speaker building components


Originally Posted by philharmonie (

Can you give me the plan of your cabinet.

Thank you.

Best regards.


philharmonie 28th February 2013 03:11 PM

Hello Fastbike1,

Partsexpress the tritix are for MTM speakers to 2, 5 channels but not for a transmission line.

Thank you.


Avec tous mes remerciements de France.

Philfr 28th February 2013 04:49 PM

Hi Philarmonie,
Maybe this design works :
model images of dca4 t-line enclosure
It's T line..

norman bates 28th February 2013 05:16 PM


philharmonie 28th February 2013 07:41 PM


The DCA4 has completely different characteristics of the DCA5.5.

If someone has plans for DCA5.5 I'm interested.

Thank you, the French.


Scottmoose 28th February 2013 10:01 PM

The OP used the Tritrix enclosure, but with Merrill driver instead of the twin midbass & tweeter. See here for the box plan:

Philfr 1st March 2013 06:16 AM

I think the only way is to create your own design.
With high Qts, a straight TL should work.
To modelize the speaker, you can use MJ King Mathcad sheet :
Quarter Wavelength Loudspeaker Design

philharmonie 1st March 2013 07:06 AM

Hi Philfr,

It is ok a high Qt with a TL line is appropriate.

I am a pensioner who is not very strong on the internet and I speak English very poorly.

This will not be easy.

Dominique Petoin has already given me a plan.

But I would like a smaller speaker because I did not need to descend in very low frequency.

The addition of a subwoofer will be later.

I am looking for a plan inspired by the prototype of Ronald THACKERAY Audio Caroline.



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