Need help identifying this 18" woofer

[Lotus 7]

The frame and magnet look very similar to the Chinese "Technical Pro" 18 inch woofer, although the rear magnet cover is different. It's possible that your speaker has a smaller diameter voice coil judging from the dust cap. If it does have a smaller diameter voice coil, it's likely the maximum power rating is also lower.

[tINY]

It's definitely a "musical instrument" style woofer. With the aluminum dust cap and limited travel (the surround is a giveaway there), I'd say it was originally intended for a bass guitar amp or a keyboard amp.

If you want to know the Fs, Vas, etc - maybe you should look into one of these:
Dayton Audio DATS Dayton Audio Test System 390-806



-tINY

[D3AD.P1X3L]

Originally Posted by tINY

It's definitely a "musical instrument" style woofer. With the aluminum dust cap and limited travel (the surround is a giveaway there), I'd say it was originally intended for a bass guitar amp or a keyboard amp.

If you want to know the Fs, Vas, etc - maybe you should look into one of these:
Dayton Audio DATS Dayton Audio Test System 390-806



-tINY

I've used it for multiple roles. Works great as a bass guitar cab but I have also used it as a low end sub for my PA though I am not certain that is what it's best for. I wish to determine what it is so I can sell it. I need a sub cab that is more modern and isn't so huge.

That tool looks quite handy, I might just pick one up just for my tool kit.

[D3AD.P1X3L]

Originally Posted by Lotus 7

The frame and magnet look very similar to the Chinese "Technical Pro" 18 inch woofer, although the rear magnet cover is different. It's possible that your speaker has a smaller diameter voice coil judging from the dust cap. If it does have a smaller diameter voice coil, it's likely the maximum power rating is also lower.

It looks similar but I think there are too many differences. Smaller, aluminum dust cap. Smaller voice coil (I estimate 2.5"-3" max), cone looks to be made of a different material and is not ribbed like that chinese woofer. And the magnet. =/

Another hint is that I've had this cab for over 15 years so it's most certainly not a modern woofer.

[D3AD.P1X3L]

I powered it for the longest time with a Peavey DPC 1000. Currently powered by an Ampeg SVP 1500. DC resistance was measured at 6.7 ohms for the voice coil.