1 Pcs Subwoofer Amplifier Car Audio Power Amplifier Board 12V 1000W Mono High Power Bass Subwoofer Amp for Car Speaker Modification

I’m in the process of trying to make a DIY powerful boombox using an off brand stereo head unit and some speakers I have lying around, one being a 600 watt BOSS subwoofer speaker.I am a complete newbie to automotive audio, so I am doing a lot of research before I connect anything to ensure I don’t blow anything up. I determined I’d need an amplifier for the ‘woofer speaker. Now, I want the subwoofer there for a more rounded sound. I am not looking to blast holes in my house from sheer bass power. So I didn’t want a high powered amp, especially given that most amps are much higher wattage than my lone speaker.This seemed to be the best fit for my needs with regards to power, performance and cost. In initial tests, it’s proving to be just that, though it’s also proved I’ll need better equipment to power it.As other reviewers have mentioned, there are zero instructions for this amp. It took me a while to finally locate the speaker-out on this amp- It’s two tabs on the PCB. Once I figured that out I rigged this amp up.I connected my head unit to some two-way speakers and tweeters, and connected the head unit to this amp via RCA cables then connected my ‘woofer to this amp. After triple checking everything, I connected to my lab bench power suppl, set it to 12 volts and began turning up the current.Everything, including this amp, worked fine. Though as I began slowly turning things up, it become very clear that my lab bench power supply, which maxes out at 30 amps, couldn’t power this amp.Again, I want the ‘woofer for better tone, not to blast bass. I found that maxing out the Low Pass Filter on this amp and setting the volume to unity gain (12 o’ clock) sounded the best, but dynamic audio that had accented bass would overdraw from the supply, shutting it down for a second before restarting and continuing to play.Now, given the price of this amp, I very highly doubt it truly outputs 1,000 watts. Though again, that’s fine for me. Even if it doesn’t though, it’s clear I need a power supply with much higher current to keep this setup of mine going.I tested this setup for about 15 minutes, and even after a few very short bursts of turning up the volume, this amp’s heat sink was only just noticeably warm to the touch (and my ‘woofer was completely cool to the touch). So, I’m confident that this amp will run reliably so long as it is set up correctly. I will say that if I were to install this in a car, I’m not sure if I’d feel comfortable stuffing it under a seat if I were to crank it up. I doubt the amp would blow up or go ablaze, but I wonder if it would get hot enough to ignite some debris under a car seat (bits of paper from wrappers, etc.). But again, I am very much a newbie to all of this.In summary, this amp has been reliable and forgiving to work with, and considering how much I paid for it, I am very happy with it and look forward to integrating it into a tested, proven DIY build.