This topic has always confounded me. Go on Facebook and check out pages of respected builders like JTR and PSA and you’ll see them lining their vented subs. I changed an amp on one of my Hsu subs and it was lined. And guys on here like Bill Fitzmaurice says do line them. On the other hand, other guys who definitely know a thing or two about subs say don’t bother. Check out the GSG site. Those guys are pros and they say not to line them.
On my four mini marty’s I lined two and didn’t line the other two. By ear and by REW I can’t detect a lick of difference. On the VBSS’s I just built I lined them (pretty much like yours). Why? Because it’s Matt’s design and the instructions say to line them.
SPEAKERS: 3 x DIYSG 1099's LCR; DIYSG HTM 6's and 8's surround; 4 x RSL C34E's atmos.
SUBS: 4 x UM18-22 Mini Marty's (and always building, currently working on VBSS's).
SIGNAL CHAIN: Denon X4400; Minidsp 2x4 HD; 2 x Jensen Iso Sub 2RX; 2 x NX6000d.
Last edited by lawdogx; 08-13-2019 at 02:58 PM.