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Open Baffle Planar servo sub speaker project
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Author:  HAL [ December 12th, 2017, 3:32 pm ]
Post subject:  Re: Open Baffle Planar servo sub speaker project

Ok, I am just moving my Peltier device electric fridge downstairs with food and beer and not coming out until Jan.

Best speakers I have ever heard in a real room with a great soundstage width and depth.

It all works! :shock:

Author:  Roscoe Primrose [ December 12th, 2017, 3:37 pm ]
Post subject:  Re: Open Baffle Planar servo sub speaker project

HAL wrote:
Ok, I am just moving my Peltier device electric fridge downstairs with food and beer and not coming out until Jan.


Ice is easier ;) Just put the cooler w/in reach of the listening chair. Then all you need is a catheter :obscene-drinkingcheers:

Roscoe

Author:  HAL [ December 12th, 2017, 3:42 pm ]
Post subject:  Re: Open Baffle Planar servo sub speaker project

Yeah, but you have to keep adding ice. I just plug it in.

Bathroom is around the corner. Then you can do both.

Author:  HAL [ January 2nd, 2018, 7:56 am ]
Post subject:  Re: Open Baffle Planar servo sub speaker project

Back from lots of travel and more speaker crossover tweaking to go.

Met Richard Schram from Parasound at RMAF2017. We talked about music, the line arrays and the Parasound Halo A23 amps that I was looking at as a possible alternative to the ChipAmps. He made me a deal I could not turn down, so now the setup has 10 - A23's and the Rythmik HX800 servo amps installed.

The DSP crossover 2x16 prototype is working well and more measurements and tweaking are happening for 2018.

Attachments:
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Author:  Roscoe Primrose [ January 2nd, 2018, 3:16 pm ]
Post subject:  Re: Open Baffle Planar servo sub speaker project

Man, that's a lot less loose wires, makes it harder to show a picture to the wife and say, "See, it could be a lot worse". ;)

Roscoe

Author:  HAL [ January 2nd, 2018, 3:34 pm ]
Post subject:  Re: Open Baffle Planar servo sub speaker project

Just use the early pictures and everything will be fine. :)

Author:  Cogito [ January 6th, 2018, 3:05 pm ]
Post subject:  Re: Open Baffle Planar servo sub speaker project

HAL wrote:
All the 20 amp channels are complete and tested. Power conditioning arrived, so now it is time to install the tweeters and connect everything.


Rich,

How are the channels configured? Based on Frequency, Driver or both?

Author:  HAL [ January 6th, 2018, 3:12 pm ]
Post subject:  Re: Open Baffle Planar servo sub speaker project

Shashi,
The frequency response for each type of driver is the same. The time delays for pairs of each type of drivers are different, so you need the different amplifiers.

Author:  Cogito [ January 6th, 2018, 6:21 pm ]
Post subject:  Re: Open Baffle Planar servo sub speaker project

HAL wrote:
Shashi,
The frequency response for each type of driver is the same. The time delays for pairs of each type of drivers are different, so you need the different amplifiers.


Is it a 3-way system? What are the crossover points and slopes?

Author:  HAL [ January 6th, 2018, 6:29 pm ]
Post subject:  Re: Open Baffle Planar servo sub speaker project

It is a 7 way speaker with 2 crossover points. The rest are time delay differences.

Still deciding on what they are exactly at this point. Approximately 150Hz from subs to planars and 6KHz from planars to ribbons.

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