[Redefy Audio]

im interested for 1 pair, ship to australia  , i will use this with AE TD15M, hopefully better than TPL150-H 

[Jonathon Janusz]

Darrel,

It has been a long (!) time, but glad to see you found your way over! 

VERY nice response graph for the new driver combo.  As someone who has been hanging around Danny's circle for a while, I'm curious to know what the off axis looks like, both horizontal and vertical?  One thing that I found that I liked from my time spent with coaxials is the consistency of sound outside the sweet spot.  In particular for me, walking around the house while listening or even lying down/sitting up at the normal listening position, having a very small vertical window in which the highs are "just right" is not a lot of fun and something I look for when auditioning speakers these days.

Thanks for your time, and if Danny hasn't mentioned it yet, ask him to get you some tube connectors for the demo speakers you already have built; particularly with their high sensitivity, the Raniers deserve them.

Hmmm. . . you're going to be at RMAF this year. . .

[ctviggen]

OB specific center to match the mains. Similar to what the X-Voce is for the X-Static mains.

Interesting.  Don't these have to be into the room, though?  If so, how far into the room do they have to be?

[DHawthorne]

Darrel,

It has been a long (!) time, but glad to see you found your way over! 

VERY nice response graph for the new driver combo.  As someone who has been hanging around Danny's circle for a while, I'm curious to know what the off axis looks like, both horizontal and vertical?  One thing that I found that I liked from my time spent with coaxials is the consistency of sound outside the sweet spot.  In particular for me, walking around the house while listening or even lying down/sitting up at the normal listening position, having a very small vertical window in which the highs are "just right" is not a lot of fun and something I look for when auditioning speakers these days.

Thanks for your time, and if Danny hasn't mentioned it yet, ask him to get you some tube connectors for the demo speakers you already have built; particularly with their high sensitivity, the Raniers deserve them.


 
Hmmm. . . you're going to be at RMAF this year. . .

Hey Jonathan,

 Thanks!

 Here are those additional plots showing Vertical, Horizontal and Waterfall.

 As we can see the wave guide does a nice job on the AMT.   Check out the waterfall plot 




Vertical




Horizontal



Cumulative spectral decay



Yes on the tube connectors.  Danny sent us over  some to check out!

 Hope to see you at one of this years shows!


 Cheers,
Darrel 

[DHawthorne]

Interesting.  Don't these have to be into the room, though?  If so, how far into the room do they have to be?

 Hey ctviggen,

I like to align my front three equal distant away from the front wall (wall we look at while listening).  This helps preserve a consistent depth illusion as the sound is panned across the room.

 Here is  few shots of Bob’s Man cave. 








 And one we did for a local friend using our 10” coaxials and 15” Augies




 Cheers,
Darrel 

[ctviggen]

Very nice!

[Bob in St. Louis]

Thank you Mr. Viggen. 
Bob

[DHawthorne]

Hey Guys,

 Look at what the UPS man dropped off.   



 Danny measures each cap and then sends them out in matched pairs.  That’s a nice touch!   
 Everything is here and looks very high quality.

I will lay these out later today and post some pictures soon.

 Cheers,
Darrel   

[playntheblues]

Hi Darrel, just wanted to welcome you.  I have always like the work you do. 

[DHawthorne]

  Hey Playntheblues,

Thanks for the welcome and also for the nice compliment, much appreciated!

 Cheers,
Darrel

[DHawthorne]

  Hey Guys,
  Busy week.

 I got the crossovers wired up and am getting some time on them prior to shipping them off to my buddy Jim in Australia.  Jim requested serial number 1 and I was very happy to honor this request.  Jim has been a great customer, friend and supported of Hawthorne audio.

 Here is a few shots of the crossover.  Jim had a few special requests but this is basically what the stock xo’s will be like.



XO data plate.  The red is just a reflection off the inductor but I thought the picture looked cool.



I made up some test rigs so we could A-B these to my Rainiers.



 We are seriously undercharging for these     Danny did a great job on these filter network.  Kudos Danny!!!!!

New data plate for the Model 700 AMT



That should get you all caught up for now.

Thanks for looking.

Cheers,
Darrel 

[jtwrace]

You could take them up a notch with Tube Connectors. 

[DHawthorne]

You could take them up a notch with Tube Connectors.

 I tried them but they were too deep for this application. 


 Cheers,
Darrel 

[DHawthorne]

I am listening to them as I type this...

Keith don’t go ( Nils Lofgren acoustic live )



 Presence and realism is out of this world.   Jim is in for a real treat with these.  I am smitten and I own Rainiers 

To be fair I am running the Augies in the Rainiers to flesh out the bottom end but I am really only evaluating the Model 700 AMT.  I don’t feel like I have slighted the DIY at all with these.   They will go toe to toe with any speaker in the sub 15K price point with the addition of an Augie, or two.
 My proud papa opinion, unsubstantiated of course. 


 Cheers,
Darrel 

[noah katz]

Here are those additional plots showing Vertical, Horizontal and Waterfall.

 As we can see the wave guide does a nice job on the AMT.
Vertical




Horizontal

Just discovered these AMT's from chrapladm at AVS.

Questions about the graphs:

1) Are they for open-backed or monopole? If the former, do you have graphs for the latter?

2) What's the angular separation between each curve?

3) What smoothing is used?

Re the horn, I'm concerned about diffraction from at the mouth due to the smallish radius. Was that looked at at all?

What's the status of the 900 AMT?

Thanks

[Danny Richie]

Just discovered these AMT's from chrapladm at AVS.

Questions about the graphs:

1) Are they for open-backed or monopole? If the former, do you have graphs for the latter?

The woofer and tweeter are open backed. A network for a mono-pole version was not designed.

2) What's the angular separation between each curve?

The top graph shows a very good vertical off axis response. It shows a 1 watt/1 meter on tweeter axis curve in red. Each additional measurement from orange to green is made by moving the mic up 4" per measurement.

The lower one shows horizontal off axis responses. The red one is again on axis. And then each additional measurement is made by moving 10 degrees off axis. So we have on axis, 10, 20, 30, and 40 degrees off axis.

3) What smoothing is used?

An industry standard 1/3 octave smooth is used.

Re the horn, I'm concerned about diffraction from at the mouth due to the smallish radius. Was that looked at at all?

It is not really a horn. I saw no diffraction or throat cancellation issues in the wave guide.

What's the status of the 900 AMT?

Darrel will have to answer that one for you.

[bladesmith]

Darrel,

(I don't mean to derail this thread. }

I am working on an OB project right now. And was thinking about augmenting the lows with one of your 15" Silver Iris (woofers) Augies.

My questions is, "what is your recommendation of the minimum width and height of the baffle I would use for one 15" Augie ?"

Thanks,
V.....

[Bob in St. Louis]

"what is your recommendation of the minimum width and height of the baffle I would use for one 15" Augie ?"

I'm not Darrel (but I did sleep at a Holiday in Express last night).
But my Augie baffles are 19" wide.
The wide you go, the more bass you get (within reason).
So a 19" square should be fine with my experience.

Hope that helps.
Bob

P.s. One thins you can do, is start with a cheap piece of MDF, that's say....24"x24".
Listen to it for a while. Trim 2" off the width and height and listen again for a while.
Keep trimming until you think you've lost something, then make your permanent baffle the width you thought sounded best in your room, for your tastes.