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Sub (rosa)

PostPosted: Tue Jan 09, 2018 7:58 pm
by TazManiac
Sorry, the title isn't really germain, other than trying to be punny...

I came across a 12" Sub Woofer unit; https://www.parts-express.com/bic-formu ... uctDetails

BIC Formula F-12 Subwoofer.

It's a self-powered sub with High Level as well as Low Level (Source) inputs.
The amp is really rated @ 150W RMS, but it talks about 475W 'peak'.

I found it w/ a toggle switch on the back broken off, one that determines if the RCA port input is going to filter out the mids & highs or (otoh) it's to expect the signal to already be Lows Only.

It seems topower up alright, and the coil of the driver is intact, but I haven't yet determined if the Amp itself is toast or not.

If nothing else I'll just run the box with a dedicated (external) amplifier...

Re: Sub (rosa)

PostPosted: Wed Jan 10, 2018 7:16 am
by Just Old Al
Nice catch! I'd make sure to isolate the frame of the box from the floor when you set it up, or your neighbours are going to be less-than-pleased with you.

Re: Sub (rosa)

PostPosted: Wed Jan 10, 2018 5:31 pm
by TazManiac
Well, here's where we are so far:

- Was able to hardwire the broken toggle switch in one of the two positions; I think it is in 'Defeat Filtering Incoming Signal' mode.

- Ran a Right Channel out of the laptop, via a 'Y' adapter cable, just to see what happens; Heard the Driver make noise...

- Looked around and noticed I didn't have a 5.1 receiver handy to hook up to. (There are many to choose from nearby, but it was late and I was sleepy by that time...)

Next up is sending a true LFE Signal to it and see if the driver/amp combo still have any semblance of fidelity.