Dimensions: 24’ × 20’ Large
Quad 57 Room B Subwoofers Result
I found Two New Old Stock (NOS) - Dynaudio Acoustics BM12s in a recording studio. Never out of the boxes.On paper for my needs they are; 18hz - 60 hz with 4th order Linwitz- Riley crossovers.
So the Dynaudio BM12s crossovers have a flat response where cutoff is applied. This, plus being a sealed box design made them appear to be a really good match for my Wayne PK Quad 57's. Quick and no cone bass past 60 hz. They house 250 watt amps @4 ohms which from the size of the heat sinks I assume is Class A/B. Most of the other subs I looked at were high wattage Class D designs..
The numbers matched up, so I made the drive out there. I brought the two home and tried them out. I did find them very punchy, clean, and quick. They go really low and keep up with the 57's on kick drums and other low bass. A good ergonomic match (to my eyes) with my raised Wayne PK Quad 57's. The subs are placed under them with the woofer cones forward of the actual Quad 57 panels - for now. This sets the sub phase alignment at "0"
here is what the set up looks like.
I am not able to preview a post on the system thread. if the direct link doesn't work see the last bottom picture of my virtual system page - the one to the right of the Bengal kitty :^). .
The Dynaudio's use a thick credit card sized remote control for configuring them. ( don't lose it ).
A little strange how all this came about. This was a good 6 month plus search. The Dynaudio BM12s were a real dark horse that just appeared out of the blue toward the end. For those following, the other subs I was seriously considering were JL Audio, REL, Rhythmik and Seaton. Rhythmik and Seaton are very hard to find used in Canada, and I was not willing to pay 30 points on the Canada US dollar difference, plus shipping, customs and duties on them for new ones. I did manage to find a used Seaton Submersive for sale; but when I went to hear it, I found out it had issues with the original smaller Seaton amp it came with clipping. This was revealed to me by the owner who had the smaller amp exchanged for the larger Seaton amp. But this meant the condition of the driver's voice coil was suspect. I passed on it. The only REL sub I would buy are the older ones Made in the UK. This means their physical condition would be ?? and repairs would need to be made at a third party repair shop. So knowing the previous owner/s is important
The Recording Studio gave me a warranty on the two NOS Dynaudio BM12s. Room B is pretty much complete now as far as gear goes. Maybe I will I start finishing touches on the actual room.