Paul's Aether design has really got me thinking about this configuration today. It seems that the open midrange approach with a monopole bass bin is the ideal compromise for a budget dipole experience.
Since the original design was built around available surplus drivers, I have an idea for another design using the NHT surplus drivers here.
Using the 1" aluminum dome.
The 5.25" Peerless midrange.
And the 8" Peerless woofer.
The dome is similar to a Seas, most likely being selected as a lower cost alternative to a Seas unit for the lower priced NHT models. It is crossed over to between 2.4 and 2.7kHz in the Super Audio series.
The mid-woofers have distortion reducing shorting rings and large (4.5mm) x-max. They were crossed over at 2.5kHz in the vt-2.4. They seem like they would be easy enough to match up to the 1" dome tweeters.
The woofers were used in a vented enclosure of less than 1.5 cu ft size in the NHT 2.5i. NHT claimed -3db at 29Hz which is similar to Paul's design. The woofers also have similar excursion to the Dayton DVC 8s.
Looking at the crossover points for the original speakers in which the drivers were used, it seems that the ideal crossover point would be around 2.5k 12db/octave.
One could get all of those drivers, including shipping for just over $100. I bet with careful selection of crossover components the total cost including construction materials could come under $200.
Just ruminating aloud,
David
Since the original design was built around available surplus drivers, I have an idea for another design using the NHT surplus drivers here.
Using the 1" aluminum dome.
An externally hosted image should be here but it was not working when we last tested it.
The 5.25" Peerless midrange.
An externally hosted image should be here but it was not working when we last tested it.
And the 8" Peerless woofer.
An externally hosted image should be here but it was not working when we last tested it.
The dome is similar to a Seas, most likely being selected as a lower cost alternative to a Seas unit for the lower priced NHT models. It is crossed over to between 2.4 and 2.7kHz in the Super Audio series.
The mid-woofers have distortion reducing shorting rings and large (4.5mm) x-max. They were crossed over at 2.5kHz in the vt-2.4. They seem like they would be easy enough to match up to the 1" dome tweeters.
The woofers were used in a vented enclosure of less than 1.5 cu ft size in the NHT 2.5i. NHT claimed -3db at 29Hz which is similar to Paul's design. The woofers also have similar excursion to the Dayton DVC 8s.
Looking at the crossover points for the original speakers in which the drivers were used, it seems that the ideal crossover point would be around 2.5k 12db/octave.
One could get all of those drivers, including shipping for just over $100. I bet with careful selection of crossover components the total cost including construction materials could come under $200.
Just ruminating aloud,
David