any one interested in ordering bulk 18" sub drivers

[KaffiMann]

1 x 250 liter sub you need a friend to even nudge. I had a 320 liter sub once for a tv bench, and when moving house I had to saw it in two just to get rid of it. It was a pretty good TH by most measures, but SQ wasn't all that, the missus liked it alot though, since it served as both speaker stand and tv bench at the same time, no visible wires.

2 x 120 liter boxes with 15" you can either place together like one, or use as stands for a couple of tops should your living room situation/priorities change. You then have the option to reconsider placement and mono/stereo configuration at will.

Edit:
You can get a nice enough pair of 15" for 300£.
And don't forget that 2 x 15" is about equal to a single 21" in membrane area.

 

[kipman725]

1 x 250 liter sub you need a friend to even nudge. I had a 320 liter sub once for a tv bench, and when moving house I had to saw it in two just to get rid of it. It was a pretty good TH by most measures, but SQ wasn't all that, the missus liked it alot though, since it served as both speaker stand and tv bench at the same time, no visible wires.

2 x 120 liter boxes with 15" you can either place together like one, or use as stands for a couple of tops should your living room situation/priorities change. You then have the option to reconsider placement and mono/stereo configuration at will.

Edit:
You can get a nice enough pair of 15" for 300£.
And don't forget that 2 x 15" is about equal to a single 21" in membrane area.

I agree I have 4 subs. They are all 250L sealed, half are loaded with 2*15" and half with 4*15". They are not fun to move and moving the quad driver ones around the room on my own is hard. Even if you put the subs in one location two 125L cabs are far easier to deal with than one 250L. Also build your cabs out of ply rather than MDF it's less dense.

What I'm doing for my next generation of subs is loading two 15" drivers in ~130L cabs tuned to 25Hz with ~1m ports. two 15" drivers has greater surface area than an 18". I'm using this driver as a bass/mid in my tops:
Beyma :: Beyma 615CMV28 PS87.91 IN STOCK (4 Jun 2019)
I don't know how it sims for sub duty but it has 7.3mm xmax and is (apart from the stamped frame which will make no acoustic difference in the sub range) a very high quality drive unit, you could get 4 of them instead of two 18". I use much cheaper drivers in my subs but they don't have very good T/S parameters for small boxes.

 

[mpa]

I use BMS 18N862 in 120L sealed box and believe me, properly powered one is more than enough! I am in UK and can get you a good deal on the BMS or the Faital pro so drop me a PM if you decide to go with one of these..