Optimus subwoofer tube

[Raybu1960]

I found an optimus subwoofer tube with a 120 hz -250 hz switch and a bass level control operated by screwdriver. No model #, no information on wattage or impedance. Can anyone help me identify this sub and provide information on it. Any chance I could use it as as passive sub with a home theater receiver. I have a 140 watt per channel 4 -16 ohm, with two line level.rca sub outputs .

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[YukonXL04]

Pull it apart and figure out what's inside. If theres and amp, bypass it and just use the speaker leads. But check the ohms on it with a meter to be safe

 

[Slo_Ride 5,000+ posts]

Wow and Optimus bass tube, haven't seen one of those in a while and this...

Pull it apart and figure out what's inside. If theres and amp, bypass it and just use the speaker leads. But check the ohms on it with a meter to be safe

 

[YukonXL04]

Wow and Optimus bass tube, haven't seen one of those in a while and this...

Lol I have never seen one...
OP looks like it has a built in amp, I see 2 speaker level signal wires, a hot and a ground so I'm guessing it has an auto turn on when sensing signal.

 

[homosexualthug69]

Oh the memories! My very first sub when I was 16(1995) was a 8" powered tube from Western Auto. Guy at school had an Optimus like the OP, moved up to a real sub, and sold the tube to me for peanuts. Man, I thought I was slappin' with one behind each seat of an Olds 88 coupe.

The Optimus died eventually and I tore it down. Postage stamp sized amp inside, 50w RMS iirc. Both tubes I owned had rca in and all the connections on the port side built in, instead of going through the port. So this one must be even older. The driver itself was pretty sad from what I can remember. I think we tortured it with 200w from a real amp and it didn't even last a minute.

I wouldn't even bother trying to repurpose it.