I measured 10 subwoofers.

[aschen]

This is such a useful body of work since I am cross shopping a lot of these currently. In general if you wonder around the internet a bit you run into quite a few annecdotes of plate amp failures.

The Neumann's are expensive but I can't help wondering if they have a statistically significant greater life expectancy than say a similar sub at half price. I don't think any of us have the data, but I suspect they are built to a higher standard than most consumer subs. I may be trying to rationalize though because I want a pair!

 

[Nuyes]

I'm curious, if you don't mind me asking, sealed? PR? port?

Sealed!

 

[Mark609]

DIY, sealed, 15" Acoustic Elegance SB15 subs, Lambda motor with Faraday shorting rings built 20 years ago. Black walnut and glued/screwed up MDF. Crossed braced, painted internally with sand/latex paint. Fs is a whopping 18 Hz. I moved them a bit away from the back wall after this shot. Cones face the wall. Anthem MRX1140 preamp to an old Soundcraftsman PCR800 amp. Low and blow!

 

[fzst]

DIY, sealed, 15" Acoustic Elegance subs with Faraday shorting rings built 20 years ago. Black walnut and glued/screwed up MDF. Crossed braced, painted internally with sand/latex paint. Fs is a whopping 18 Hz. I moved them a bit away from the back wall after this shot. Cones face the wall. Anthem MRX1140 preamp to an old Soundcraftsman PCR800 amp.

View attachment 477052

Dang those look gorgeous!

 

[Mark609]

Dang those look gorgeous!

Thanks! Couple of coats of Waterlox Original Sealer. Best tung oil varnish on the market. Penetrating then builds with more coats.

 

[fzst]

Thanks! Couple of coats of Waterlox Original Sealer. Best tung oil varnish on the market. Penetrating then builds with more coats.

Well whatever you did, it works If they sound like they look, you've got a sweet setup.

 

[Mark609]

Well whatever you did, it works If they sound like they look, you've got a sweet setup.

I do. Crossed over to ELX towers at 60 Hz they disappear. Movies like John Wick and James Bond shake the walls. Music is fine too. The WHACK of the snare drum in Dire Straits "Calling Elvis" is chest thumpng. By the same token the little 6" ELX woofers look like fish out of water. Excursion is really radical.