Shallow Speaker

[asauer]

If worst comes to worst and you cannot figure out enclosure volume, fill a gallon jug with water or sand or etc, whatever works best and will be safe on the box. This is a last-ditch guestimate. You could even use cups lol.

 

[purplepeople]

Oops! I obviously forgot about that first reflection.

Okay then, doesn't a passive radiator remove that first reflection by deflecting in response. Could you then use a PR in a "thin" box?

🙂ensen

 

[planet10]

Okay then, doesn't a passive radiator remove that first reflection by deflecting in response. Could you then use a PR in a "thin" box?

Except that at the frequencies of particular interest the PR behaves pretty much like a cabinet panel.

dave

 

[FrankWW]

Here's a skinny sub

I don't need one of these but I thought it was nicely done.

http://www.partsexpress.com/projectshowcase/boogieman/design.html

 

[speaker]

Boston Acoustics' first designs were quite shallow. The A100 was aprox. 20" wide x 30" high x 8" deep. Tthe A700(?) was about 50% larger while retaining the 8" depth.

Even more radical was an early Duntech design, the PCL-somethingorother. It was ~ 12H x 24W x 3D, and was designed to be hung on a wall...great sounding little speaker.

In both cases, the designers pointed out the elimination of early reflections as one of the main design goals.

The early Bostons (A200, A150, & A100) are still considered excellent sounding speakers too. The wide & shallow baffle was unique at the time but was moved away from early on to more conventional designs. WAF was one reason. It wasn't because of how they performed.

 

[Doug Kim]

I wonder OP actually did this experiment: build a proven closed box, and then convert it to a shallow & wide version maintaining same volume. How much the sound would be affected? It would be great if anyone actually measured it.

 

[midrange]

In the 70s quite a few speakers were shallow (original Kef Coda springs to mind).

 

[Flaesh]

JBL SCL-3\4 - 97 mm and 93 mm:
SCL-3 - JBL Synthesis
SCL-4 - JBL Synthesis

 

[Doug Kim]

JBL SCL-3\4 - 97 mm and 93 mm:
SCL-3 - JBL Synthesis
SCL-4 - JBL Synthesis

The OP wanted to know if there's performance difference if same units and crossovers are packed into a conventional closed box or a wide and shallow box with same volume. I don't know how a ceiling/wall-mount units apply to this thread.

 

[djn]

I always wanted to build these but never got around to it.

Tom Zurowski PAWO Rear Loaded, Wide Baffle, Side Venting FR125S Horn