do i need a second amp for my speakers?

I have an opportunity to buy a vintage Kinergenics sw150 passive sub with the seperate amp thats been used probably ten times. Perhaps I will audition it first and see what kind of difference it will make. How hard will this be to match up to the mains as far as frequency roll off? Also not sure if the Kiner amp has inputs for the main amp driving the main speakers. How do I go about choking the woofers on the paradigms?

very pleased with the amp section so far, I would say the cd player is the weakest link at this point. Not sure if it would be better to get a dac or just a new player in itself? As far as the bottom end of the sound, I am very happy with it, I dont think spending the money alot of money that is on a sub would do much for me. The reasoning for the question was to find what a difference biamping the speakers would be. And to see where I could make some better improvements, Right now it is a little to bright for me and would like to improve on the soundstage.

thanks

mike

I would spend the $ on a better CD player or Dac maybe with a tube output. If you think there is room to improve the amp section, buy a better amp. Have you tried mating a Belles Amp with your pre?

You need an ACTIVE crossover or other level matching device unless the gain of the two amps is identical. Otherwise either the highs or the lows will be at a higher volume than the other. Some would also argue that you should physically separate the woofers and tweeters and do the crossover before the amps, to gain maximum benefit. Personally, if you want to go this route and can get matched amps, I would vertically bi-amp with each amp driving one channel. then the rights (or left) of one amp would drive the highs (or lows) of one speaker the other channel of the same amp would drive the other.

If you want to bi-amp, add a pair of subwoofers. IMHO, It would be a big waist of money to drive the tweets with their own amps.

Or, spend the extra cash on a better two channel amp.

Dave

mike,

What are you trying to accomplish?

The Paradigms are pretty efficient speakers, so you already have plenty of power. Bi-amping can give you a little better separation, but when you start using different amps things can get pretty tricky...

Like I said, what are your goals?

can you explain that a little more? why would i need a crossover with it already built in to the speakers?

If you horizontally bi-amp (one amp for woofs, one for tweets) with anything other than an amp with the same gain (not necessarily same output power) you will need an active crossover or other level matching device.