[mattmanic]

Hello,

I've just found an old 12" sub and a box in a cupboard and have borrowed a 200w amp. I'm wondering on the best set up for volume and crossover on it. It sounds alright with the crossover at max (160hz) and the sub volume at 1/3, but people are saying that you shouldn't have the crossover over about 80hz.

What difference to the listening experience would lowering the crossover make?

[snig300]

you need to say what speakers you are using your sub with? what are you crossing over too/from?

[mattmanic]

Some Mordaunt MS05 bookshelfs powered by a 100w Sony AV receiver. I'm not sure I follow you on what I'm crossing over. I was referring to the dial on the sub's amp which says the max frequency it will attempt.

[softsorter]

I'm no expert but if your speakers are 80-240khz and you set the sub to 60hz crossover then you have a hole of a 20hz band being dropped.

here on AV type amps the recommended setting is for the amp to control the crossover with the subs crossover turned round to max.

example

speakers 60-24khz set the crossover in the amp on the sub setting to 60hz, if you dont have a av amp with a sub out and using highlevel outputs into the sub, then use the crossover setting on the rear of the sub and set at 60hz.

so range of music will be 60-24khz your speakers will play and what your speakers cant handle 60hz and below will be done by the sub.

hope that makes sense ?

cant find the spec for yours but the newer MS05i come down to 65hz so after 65hz your subs needs to do its bit but experiment 70-80hz on the sub, if you start going higher your asking the sub to play higher ranges which some subs dont do well but experiment and see how it sounds.

[John7]

Movie sub-woofer sound tracks extend up as far as 120Hz

[phil2009]

But it depends if amp handles the crossover. If not, settingi it to 160hz, the sub will produce the frequencies that your speakers can produce, resulting in a muggy sound.

Basically the subs crossover should be set to whatever your main speakers cant produce. so if your speakers cant go any lower say 80hz,, set the sub at 90hz so it slightly crosses over but not to much. So then youve got your sub doing the 90hz downwards and your main speakers coping with 80hz upwards