there's alot of good answers for you here.i too am an old timer being 48 myself ,i do remember the old school amps very well ,actually still have a fosgate ix 100.there are alot of woofers on the market now that will take alot more power than rated.i just did a system for my son with only 400 watts rms in a suv too ,consisted of a dc level 3 15 and a massive nano amp.and it was loud,he enjoys it very much and he has had louder.ok if you wanna keep it kind of stealth ,i would recommend looking into some of the mini amps like the nano ,aspm, audiopipe amp, arc mini's , and alpine .also because he listens to heavy metal like me ,a pair of 8s or 10 s would be perfect in a nice ported box.there is alot of options out there ,just take your time and what you want will come up.also the reference amps are still very good ,noy so much with all other soundstream amps ever since power acoustic took over a few years back.