[Danny Richie]

I still have one of the Beyma drivers in stock.

It needs a wave guide that will set it back far enough to physically align it with the voice coil of the driver or drivers that it gets paired with that also blocks off a little of the top and bottom of the driver to improve vertical dispersion.

Making that work would be tricky and require some good damping on the top and bottom areas. It would require a lot or R&D, and good 3D printer.

[Early B.]

I still have one of the Beyma drivers in stock.

It needs a wave guide that will set it back far enough to physically align it with the voice coil of the driver or drivers that it gets paired with that also blocks off a little of the top and bottom of the driver to improve vertical dispersion.

Making that work would be tricky and require some good damping on the top and bottom areas. It would require a lot or R&D, and good 3D printer.

Sounds like a lot of time and money to make it closer to perfection, and perhaps not worth the effort. A less costly and time-intensive option is to work with what you have readily available. There will always be trade-offs.

[Jonathon Janusz]

Danny won't touch them for the reason he mentioned. However, send him the drivers so he can design an OB speaker for you.

BTW - Beyma has a horn version of this driver, so there's no need to fashion a waveguide:  https://usspeaker.com/beyma%20tpl150h-1.htm

I still have one of the Beyma drivers in stock.

It needs a wave guide that will set it back far enough to physically align it with the voice coil of the driver or drivers that it gets paired with that also blocks off a little of the top and bottom of the driver to improve vertical dispersion.

Making that work would be tricky and require some good damping on the top and bottom areas. It would require a lot or R&D, and good 3D printer.

I'm sorry if I was unclear.  Firstly, I'm not in the market, but for those that were inquiring I was thinking the OBSession design is an already completed, functioning, effective implementation of this, no?  I'd think that if one could replicate the baffle on these already completed designed speakers with a CNC - like the NX-series, latest revision of the super-7, and the latest iteration of the line force - the delta between design concept and speaker kit gets a lot shorter because nothing but programming the CNC to make the baffles needs be done, assuming now there are no IP issues with the end of Hawthorne Audio - not unlike the x-series AV123 speakers, now GR-Research kits (setting aside, of course, Danny's desire to further refine the design by further modifying the waveguide on the AMT, assuming someone would want/be happy just building out the design as-is).

[Early B.]

I'm sorry if I was unclear.  Firstly, I'm not in the market, but for those that were inquiring I was thinking the OBSession design is an already completed, functioning, effective implementation of this, no?

Yes, it would be easy to replicate. In fact, I have the crossover schematic, and the drivers are available for purchase. However, we're caught in an ethical dilemma as you indicated. Even though Hawthorne Audio is no longer in business, we would probably need their nod on this. Also, there's probably no benefit to Danny in doing this. He already has comparable kits available for less money, and he would likely say they sound better than the OBsession. The only reason I purchased my OBsession is because Danny didn't have OB monitors in kit form at that time, except the Wedgie. 

FWIW -- I like these speakers more and more as time goes on. With dual servo subs on the bottom, not sure if there's anything else out there that can compete under $10 or $15 grand (except for Danny's other designs, of course).   

[Wind Chaser]

Early B,

How big are they? Got a picture? 

[Rocket_Ronny]

Picture in his Systems link.

Rocket Ronny

[Early B.]

Early B,

How big are they? Got a picture? 

The baffle is roughly 20" x 10" and the longest wing is 13.5".

[Wind Chaser]

Those are much bigger than I thought. How low do they go without augmentation?

[Wind Chaser]

As a kit, these might be easy enough for me to do.

[nickd]

EarlyB,
Those are super nice. For the last 4 years or so I have been ruining tradition monitors closer to the wall with DSP EQ for boundary compensation. If I were going back to OB, I would definitely be interested in those drivers. I like the Idea of a high efficiency 8” mid and low crossover point. Those must sound pretty sweet.

Over the last few years my mind has really been opened to the different ways to get good sound in room.
The only one I have never fully understood is full range drivers. Except for near field of course, then they can be magic too (Audience 1+1 and Danny’s LGK comes to mind)

[Early B.]

How low do they go without augmentation?

For these speakers, the -6db is going to be about 160 to 180Hz which would be the crossover point. So, yeah, you'll need subs that can go up to the 200Hz range without a problem. 

[Wind Chaser]

For these speakers, the -6db is going to be about 160 to 180Hz which would be the crossover point. So, yeah, you'll need subs that can go up to the 200Hz range without a problem.

I have pretty decent bass augmenter that would work. If Danny and Darrel were cool with a DIY approach I'd be very interested, especially if Danny offered fully assembled outboard crossovers. 

 

[sarora9]

I believe the spatial audio X series using Beyma tweeters with waveguides?