DIY Subs for Celestion drivers.

[Bill Fitzmaurice]

Celestion hired me to design compact lightweight enclosures for their TSQ 1845 and 2145 drivers. They're now posted on the Celestion site as free PDFs with youtube videos. 

https://celestion.com/blog/build-this-18-inch-bass-reflex-enclosure-featuring-the-tsq1845/

https://celestion.com/blog/build-this-21-inch-bass-reflex-enclosure-featuring-the-tsq2145/

[JPJ]

Wow these look great. Any idea of finished weight and recommended crossover frequency, or is that covered in the download? 

[Bill Fitzmaurice]

They're very light, as they are built from 12mm plywood and the drivers are neo. The exact weight depends on the plywood species, but they're going to be lighter than most commercial offerings. Like any sub they should cross to the mains between 80 and 120 Hz. 

[Huge Hands]

They remind me of some EV single 18" subs a venue I worked in had about 26 years ago, and they were probably a good few years old then.

 

They were probably about 10 times the weight of your designs, but those EVs used to act like they had sold their soul to the sub-frequency devil and rumble away like mad!

 

I have fond memories of them - I assume yours will be just as good if not better!

[Phil Starr]

Congratulations upon getting this commision Bill I'm sure it will be a useful resource for many people

[Bill Fitzmaurice]

Thanks. Celestion hasn't been known for PA drivers for DIY but they're getting very strong in that market.