On 03/11/17 06:16, John-Del wrote:
There's this guy that hangs around recycling in his town and he brings me stuff to fix. A lot of what he brings in is virtually new - it's amazing what people throw away. The other day he brought in what looks like a vintage Ampeg bass speaker cabinet in rough cosmetic shape (name gone), but it has an undamaged 15" speaker installed. It has a 3/4 jack for the input. It has a large square magnet and the numbers on the driver are 5815026 137 544.

My oldest son plays bass in a band but this speaker seems more suited for lower power tube amps. Is this good for a practice amp or better suited for repurposing the cabinet (which is otherwise structurally sound)?


Can you post a photo somewhere?

My first bass amp had a 40W valve push-pull output stage,
home-built by an EE friend of my father as a (mono) sound
system sometime in the '50s. It drove a 15" speaker and
a mid-range horn in a beautifully constructed case the
size of a washing machine. The speaker had a powered field
coil!

The whole thing was terribly inefficient by today's standards.
If yours is anything like it I recommend you chuck it and
buy a driver that has modern magnetics.

Also, Phil Allison can probably tell you more about your
Ampeg. His knowledge of such things is legendary.

Clifford Heath.