Mark Audio Alpair 10.3/A10p MLTL

[Elmojo]

Those came out beautiful, Larry!
What's that finish - Veneer? Vinyl?

 

[larryldspkr]

Elmojo
The speakers are finished with Formica 6210 Couture Wood. Bullet proof and no top coating.

Larry

 

[Elmojo]

Very nice, looks slick.
I've been considering using those laminate floor strips with the built-in underlayment, with 3/4" XPS foam sheet as the base cabinet. It wouldn't be a ton cheaper than just using plywood, but it would look nicer, and may sound better, who knows?

 

[zman01]

Good looking pair Larry!

 

[ujju3doc]

Very nice build. Congratulations. Has anyone listened to both Alpair 10.3/10p Pensil and Jim's MLTL design? What is the difference in the sound signature?

 

[Jim Griffin]

Those new speakers look great. I am glad that you are pleased with their sound.

 

[larryldspkr]

Thanks Jim, very happy with the sound! These speakers are so easy to listen to, truly full range.

Larry

 

[Mr_Zenith]

I have pair of these nearing completion at the "90% complete, 90% still to go" stage. I'll admit to being a bit skeptical at first, but that was dispelled during initial testing. These sound absolutely fantastic! They seem to be much bigger than they actually are.

I'll post some pictures and more details when they're actually complete. In the meantime, thanks to Jim for such an awesome design!

 

[polywine]

I have made my box finally. I am using wool instead of other material. I find it has more bass when i pull out the port. When i put back the port, it has lesser bass. Does anyone know what is that?

 

[Bill poster]

Interesting. Behaves like a straight TL?

 

[nandappe]

Dear polywine,

In ML-Voigt pipe, BH, FH, the added duct increases the bass.
No wonder, it's a normal phenomenon.

But, it is difficult to adjust the duct (area, length).

 

[tauruswho]

Made set of these from some used 18mm ply shelves, sound great..


Mark

 

[Robin De Wolf]

Markaudio are lousy at updating their site, but FWIW, I've done quite a few more enclosures than are currently there. I'm no Dr Griffin, but in the meantime these might be of interest:

Hi Scott,

Would there be any detriment to folding the compact MLTL design for the 11ms? This would mean a 54cm tall "bookshelf". I currently have the MAOP 11.2's in a not well suiting BR bookshelf and I am looking for a design that would go on my desk or dressoir.

Best,

Robin

 

[planet10]

It should be doable. Easier if you make it widish and shallow.

dave

 

[Robin De Wolf]

Ok @Scottmoose I bit the bullet and Water Buffalo it will be. Just to confirm, would this also work with my MAOP 11.2 drivers?

If yes, Where can I contribute to plans?

Thanks,

Robin

 

[Scottmoose]

Not exactly. Water Buffalo is designed for the Alpair 11MS; as I often say (in slightly blunt prose 😉 ) for best results you need to use an enclosure designed for a given driver, rather than trying to ram it into something that was designed for another unit. As far as the bald alignment goes, the lower Q of the MAOP 11 (which is derived from the Pluvia, not the Alpair) creates a more highly damped response; the baffle dimensions do not quite match the response characteristic of the 11 MAOP relative to the 11MS and the target responses. While it will work with OK[ish] results, it's not quite optimum. This will also to a point depend on your driving amplifier, which I don't know about.

 

[Robin De Wolf]

I see, thanks. So I should be looking for Pluvia11 designs? Or are there other TL designs available more suiting to my drivers,
Perhaps a bespoke design?

I have grown to like them very much, albeit I would like to extend lower frequency response.

I plan to use my low output impedance (First Watt type) amplifiers.

 

[planet10]

MAOP 10.2 is fairly fresh. Few designs on the ground.

I have the trapezoid miniOnken, i expect i might get an M10.2 ML-TL from Scott soon.

Frugel-Horn XL is also a candidate.

dave

 

[Robin De Wolf]

I might have posted this in the wrong thread, I have the MAOP 11.2 drivers, not 10.2. should I just wait patiently for the 11.2 designs?😉

 

[andyjevans]

I have my Alpair 10.1 in 24ltr cabinets as shown. They are actually 5 sided, but I've adjusted the measurements for rectangular to make it easier. The actual front of my cabinets is 155mm wide. I have no idea where this design came from - does anyone know? I bought them as they were. 18mm mdf build.

At present there is just a 55mm diameter hole for the reflex port. Can somebody tell me how to calculate the tube I need to tune the cabinet? I have 2x tubes 11.5cm long. The interior is slightly tapered, 44mm at front and 42mm at the back, interior diameter.