my bose speakers blew and i had some pioneer 4ohm speakers laying around so i installed them in place of the bose speakers using the stock amps that were made to work with the 1ohm speakers. the sound quality was no where near as good as the original bose( the treble was too loud and tinny and there was poor midrange but decent bass) so i decided to put a 1.5 ohm resistor in parallel with the speakers to bring the impedence down to 1 ohm theoretically. this actually brought the sound quality back to where the bose speakers were if not better ( the bass and midrange were perfectly clear and the treble was not as loud and tinny as before)

does anyone know if this type of set up can cause damage to the amplifier or speaker and also what this actually does to the frequency response of the speaker because with this resistor in place it made a huge improvement on sound quality

 

What you did is fine, so long as the resistor is able to handle the wattage that the amp can pump through it. EEs who design passive crossovers for speakers do exactly what you did, it's fine. And changing the Znom (nominal impedence) also changes the dampening factor, so that probably had an effect on the SQ as well.

 

thanks, im using a 12W resistor so i think it can handle the wattage of the stock amp

 

Well, I donno what wattage those amps are rated to deliver, but I doubt it's anything serious, I think your fine.